CN112213342A - Portable analysis and detection system for content of elements in ore - Google Patents
Portable analysis and detection system for content of elements in ore Download PDFInfo
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- CN112213342A CN112213342A CN202011058194.2A CN202011058194A CN112213342A CN 112213342 A CN112213342 A CN 112213342A CN 202011058194 A CN202011058194 A CN 202011058194A CN 112213342 A CN112213342 A CN 112213342A
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- 229910013178 LiBO2 Inorganic materials 0.000 claims description 3
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- 238000010521 absorption reaction Methods 0.000 claims description 3
- 229910052783 alkali metal Inorganic materials 0.000 claims description 3
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/22—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material
- G01N23/223—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material by irradiating the sample with X-rays or gamma-rays and by measuring X-ray fluorescence
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/36—Embedding or analogous mounting of samples
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/71—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light thermally excited
- G01N21/73—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light thermally excited using plasma burners or torches
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/62—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N2001/2893—Preparing calibration standards
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/36—Embedding or analogous mounting of samples
- G01N2001/366—Moulds; Demoulding
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Abstract
The invention provides a portable analysis and detection system for element content in ore, which comprises mutually independent X-ray fluorescence spectrum analysis subsystems; an emission spectrum semi-quantitative analysis subsystem; an acid-soluble alkali-soluble inductively coupled plasma emission spectrum analysis and acid-soluble alkali-soluble inductively coupled plasma mass spectrometer analysis subsystem; and a portable mobile subsystem. The method has the advantages that a set of independent equipment which can be moved and used according to the test working condition is formed, the application range is wide, the ore types are multiple, the operation is convenient, the acid dissolution method and the alkali melting method are combined with the inductively coupled plasma emission spectrometer and the inductively coupled plasma mass spectrometer, a rare element analysis system which is formed by combining the traditional chemical method and a modern large-scale instrument is established, and the analysis method is formed according to the technical index completion condition.
Description
Technical Field
The invention relates to the field of ore detection and analysis methods, in particular to a portable analysis and detection system for the content of elements in ores.
Background
For a general ore sample, under the condition that the element content, especially the rare element content range, cannot be obtained, accurate analysis of rare elements, especially micro-scale elements in the sample is difficult. In addition, the existing ore sample detection system is very heavy, so that the real-time effective detection of the mined ore sample cannot be realized, the detection is delayed, and therefore a new portable ore sample detection system needs to be designed, so that the requirements for analyzing and testing rare elements in the ore are met, the requirements for real-time rapid detection are met, and a reference is provided for drawing up or selecting a rare element analysis scheme.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a portable analysis and detection system for the content of elements in ores, which comprises:
a box body;
an X-ray fluorescence spectroscopy subsystem;
an emission spectrum semi-quantitative analysis subsystem;
an acid-soluble alkali-soluble inductively coupled plasma emission spectrum analysis and acid-soluble alkali-soluble inductively coupled plasma mass spectrometer analysis subsystem; the portable subsystem is provided with a plurality of openable independent test windows, and an X-ray fluorescence spectrum analysis subsystem is fixedly arranged in each independent test window; the emission spectrum semi-quantitative analysis subsystem and the acid-soluble alkali-soluble inductively coupled plasma emission spectrum analysis and acid-soluble alkali-soluble inductively coupled plasma mass spectrometer analysis subsystem, the fixing device for fixing the three systems is a three-tooth fixing device, the three-tooth fixing device comprises a base, a three-tooth chute, a fixing tooth, an air pressure port and a hydraulic port fixing port, the fixing port is arranged at the center of the top of the three-tooth fixing device, a fixed air pressure meter, the air pressure port, the hydraulic port and the fixed air pressure meter are arranged on the base, face towards three independent test windows, the farthest width between the three independent test windows is smaller than the width of the three independent test windows, a multifunctional support handle is arranged on the outer side of the vertical surface at the opposite side of each test window, the multifunctional support handle comprises a handle body, a damping hinge and a movable winding rod, the handle body is fixed on the box body, the outside cross-section of the handle body that the gap was kept apart is narrow hexagon, and handle body both ends set up the damping hinge, through damping hinge connection has the activity wire winding pole, and the terminal upper and lower both sides of activity wire winding pole are equipped with the bead, the bead is semi-circular structure, the upper and lower both sides of activity wire winding pole are equipped with spacing steel cable, spacing steel cable one end is connected and is close to handle body side at the activity wire winding pole, and the other end is connected on the box.
Preferably, the X-ray fluorescence spectrum analysis subsystem comprises an X-ray fluorescence spectrometer, an ultraviolet-visible spectrophotometer, a polarograph, a powder sample press, an oscillation mixing ball mill, a platform scale, polyethylene and microcrystalline cellulose, an electronic balance, a muffle furnace, an oven, a high-frequency sample melting machine, a numerical control ultrasonic cleaner, an electric furnace, a water purifier, a composite flux, lithium nitrate, lithium bromide, ammonium iodide and hydrochloric acid.
Preferably, when the content determination analysis of the ore elements is carried out, the voltage and the current of an X-ray tube of the X-ray fluorescence spectrometer are respectively 60kV and 60mA, the crystal is LiF200, and the collimator is 150 microns, and the method comprises the following steps:
step 11, respectively putting 8 national first-class standard substances of ore samples, 1 polymetallic ore, 3 water system sediments and 2 national first-class standard substances of soil into a 60mL ground glass bottle with a label, putting the ground glass bottle into an oven, baking the ground glass bottle for 2 to 3 hours at the temperature of 80 ℃, taking out the ground glass bottle and putting the ground glass bottle into a dryer for later use;
step 12, accurately weighing dry standard substances according to the proportion of the mixed standard substances to ensure a certain concentration gradient, placing the dry standard substances in an oscillation mixing ball mill, adjusting the frequency to be 30 times/s, and oscillating and uniformly mixing for 30 minutes for later use;
step 13, preparing a sample: two methods are included, the first method is: adding a little binder into high-siliceous ore, weighing 0.30g of microcrystalline cellulose into 4.00g of sample, placing the sample on an oscillating mixing ball mill, adjusting the frequency to be 30 times/s, oscillating and uniformly mixing for 3min, then transferring the uniformly mixed sample into a cavity die, edging a substrate with low-pressure polyethylene, keeping the pressure at 32MPa for 40s to form a powder tabletting sample sheet with the outer diameter of 40mm and the sample diameter of 32mm, writing the sample number, and placing the sample in a dryer for later use; the second method is as follows: firstly, carrying out pretreatment of a fusing agent and an oxidizing agent, wherein the pretreatment comprises the following steps of: 1: 0.4 composite flux Li2B4O7:LiBO2LiF, burning to remove water before use, pouring the composite flux into a 500mL porcelain dish, putting the porcelain dish into a muffle furnace, staying at 200 ℃ for 15-20 minutes, then heating to 650 ℃, keeping for 3 hours after reaching the temperature, taking out the porcelain dish, putting the porcelain dish into a drier for cooling, transferring the porcelain dish into an original bottle after cooling, putting the porcelain dish into the drier for standby, wherein an oxidant adopts LiNO3Mixing LiNO with LiNO3Transferring to a large beaker, baking for 3 hours at 105 ℃, taking out, placing in a dryer for cooling, transferring to a 250mL ground glass bottle with a label after cooling, and placing in the dryer for later use; then, samples were prepared, 6.0000g (+ -0.0001 g) of the composite flux, 0.2000g (+ -0.0001 g) of the standard substance and the internal control sample were accurately weighed in a 30mL porcelain crucible, and finally 0.1000g (+ -0.0010 g [ A1 ] of the oxidizing agent was weighed]) And uniformly mixing the sample in a ceramic crucible by using a glass rod, and pouring the mixture into a platinum-yellow crucible (mass ratio of 95: 5) adding 5 drops of 20% LiBr solution, melting in GGB-2 high-frequency melting machine, pre-oxidizing at 650 deg.C for 6 min, melting at 1050 deg.C for 7 min, adding 20mgNH during high-temperature melting and rotating process4I is used as a release agent, a sample is poured into a mold which is kept warm on an electric furnace after melting, the mold is taken down from the electric furnace and is placed on a fire-resistant plate for cooling and demolding, then a crucible which is used for melting the sample is placed into a 20% HCl solution for ultrasonic treatment for 5 minutes, meanwhile, another prepared crucible is used for melting the sample, a sample piece in the mold is poured after 5 minutes, a label is pasted on the sample piece, the sample piece is placed into a self-sealing bag and is placed in a dryer for storage, the mold is placed back to the electric furnace again for heating, the cleaned crucible is taken out and is cleaned with pure water and baked, and the process is circulated;
step 14, using compton scattered rays of a rhodium target as an internal standard, adopting a philips matrix correction mode, combining a theoretical influence coefficient and an empirical coefficient, and combining concentration correction and intensity correction to obtain a standard curve so as to correct overlapping interference and absorption enhancement effect among elements, matrix effect and spectral line interference, and partially correct granularity effect and mineral effect; the matrix correction method comprises the steps of measuring the content or counting rate of elements, analyzing the intercept of the elements, overlapping interference coefficients, the slope and counting rate of a correction curve of the elements, coexisting or overlapping interference element data and carrying out mathematical correction after the relation among all parameters of matrix correction factors, wherein the related elements comprise the elements to be analyzed, various coexisting elements and overlapping interference elements.
Preferably, the method in step 14 may further adopt an empirical classification method and an incremental method to perform the matrix effect correction, wherein the empirical analysis method artificially classifies the measured objects according to the differences between the matrix components and the geometric conditions of the measured objects, respectively establishes corresponding standard curves or mathematical correction models, and then quantitatively samples different types of measured objects using corresponding standard curves or mathematical correction models. The incremental method is a standard addition method, and is used for measuring an analysis element in a sample by adding a certain content of the analysis element or a standard sample containing the analysis element into the analysis sample to be measured.
Preferably, the emission spectrum semi-quantitative analysis subsystem comprises an energy dispersion X-ray fluorescence spectrometer, wherein the spectrometer consists of an X-ray generator, a detector and a data recording and processing part, when a primary X-ray spectrum generated by an X-ray tube, namely X-rays generated by a secondary target are irradiated on a sample, characteristic X-rays generated by the sample to be detected are directly absorbed by the detector, and the characteristic X-rays with different energies are processed by a photomultiplier tube circuit to obtain the intensity of the characteristic X-ray spectrum of the element to be analyzed; the detector consists of a detection unit and a control unit, wherein the detection unit comprises an X-ray tube, a Si-PIN detector and a high-voltage generation module for providing high voltage for the work of the X-ray tube.
Preferably, the acid-soluble alkali-soluble inductively coupled plasma emission spectrometry and acid-soluble alkali-soluble inductively coupled plasma mass spectrometer analysis subsystem comprises an analytical balance, an electric hot plate, a full-spectrum direct-reading spectrometer, an inductively coupled plasma mass spectrometer, high-grade pure hydrochloric acid, high-grade pure nitric acid, high-grade pure hydrofluoric acid, high-grade pure perchloric acid, high-grade pure argon, high-purity deionized water and 1mg/mL of standard storage liquid of analysis elements, and the corresponding mixed standard working liquid is prepared by diluting the storage liquid step by step according to a sample melting mode, sample content and content difference conditions among the detected elements.
Preferably, the detection by the acid-soluble alkali-fusible inductively coupled plasma emission spectrometry and the acid-soluble alkali-fusible inductively coupled plasma mass spectrometer analysis subsystem comprises the following steps:
step 21, processing the sample by adopting an acid dissolution method or an alkali fusion method;
and step 22, measuring by using an inductive plasma mass spectrometer or an inductive coupling plasma emission spectrometer.
Preferably, the step 21 includes three types:
if the rare elements determined by analysis belong to alkali metals, a conventional mixed acid and acid method is adopted, and the method comprises the following steps: accurately weighing 0.1000-0.5000g of a rare metal ore national standard substance into a polytetrafluoroethylene crucible, wetting the sample with a small amount of water, adding mixed acid 15-30m according to the proportion of hydrofluoric acid, hydrochloric acid, nitric acid and perchloric acid to 5+7+2+1, putting the sample on an electric heating plate, heating and dissolving at 200 ℃, stopping heating the electric heating plate after all the acid is evaporated to dryness after about 4 hours, adding 5 thin hydrochloric acid, heating and leaching for 5 minutes, taking down the solution to be cooled, fixing the volume to 20mL in a 25mL colorimetric tube, transferring the solution to 1mL of clear liquid after shaking and standing for 2 hours, fixing the volume to 5mL, shaking up the solution for later use in determination by adopting an inductive plasma mass spectrometer or an inductively coupled plasma emission spectrometer;
if the element analyzed and determined is beryllium element, a high-pressure mixed acid-dissolution method or a sodium peroxide alkali-dissolution method is adopted, wherein the high-pressure acid-mixing acid-dissolving method accurately weighs 0.1000-0.5000g of sample of national standard substance of rare metal ore in a polytetrafluoroethylene crucible by using an analytical balance, wets the sample with a small amount of water, then adding 15-30mL of mixed acid according to the proportion of hydrofluoric acid, hydrochloric acid, nitric acid and perchloric acid which are 5+7+2+1, putting the sample on an electric heating plate, heating and dissolving at the temperature of 200 ℃, after all the acid is evaporated to dryness in about 4 hours, stopping heating with an electric heating plate, adding 5mL of dilute hydrochloric acid, heating and leaching for 5 minutes, taking down for cooling, transferring into a 25mL colorimetric tube, the volume is determined to be 20mL, 1mL of clear liquid is taken out after shaking and standing for 2 hours, the volume is determined to be 5mL, and an inductive plasma mass spectrometer or an inductively coupled plasma emission spectrometer is adopted for determination after shaking; the sodium peroxide alkali fusion method uses an analytical balance to accurately weigh 0.1000-0.5000g of rare metal ore national standard substances into a high-aluminum crucible respectively, then adding about 1g to 3g of sodium peroxide and stirring uniformly, covering a layer of sodium peroxide on a sample, putting the sample into a muffle furnace at 700 ℃ for melting for 10 minutes, taking out the sample and waiting for cooling, putting the crucible into a cleaned 200mL beaker after cooling and leaching the crucible by using boiling deionized water, then adding 20mL of hydrochloric acid into the beaker for acidification, washing the crucible out, and the beaker is prevented from being heated on an electric hot plate, the sample volume is concentrated to 70mL, and the sample is transferred into a 100mL glass volumetric flask, shaking up and standing for analysis and determination by using an inductively coupled plasma emission spectrometer or analysis and determination by using an inductively coupled plasma mass spectrometer after dilution;
if the element to be analyzed is zirconium element, the method adopts the combination of a mixed acid-dissolution method and an alkali-fusion method, and comprises the following steps: respectively and accurately weighing 0.1000 sample of a rare metal ore national standard substance into a 30mL corundum crucible, adding 1.500g of sodium peroxide, uniformly stirring by using a glass rod, covering a layer of sodium peroxide on the corundum crucible, then placing the corundum crucible into a muffle furnace for melting, setting the temperature to 700 ℃, setting the melting time to be about 10 minutes, taking out the corundum crucible for cooling, placing the corundum crucible into a beaker after cooling, adding 60mL of hot water for extraction, washing the sample out of the crucible by using a small amount of hydrochloric acid and water after a violent reaction is generated in the beaker, placing the beaker on an electric heating plate for heating, taking down the beaker after slightly boiling for 1 minute, filtering the solution after cooling, washing the beaker by using a 20% sodium hydroxide solution, and then dissolving the precipitate by using dilute nitric acid to obtain a sample solution for measurement by using an ICP-AES (inductively coupled plasma emission spectrometer) for analysis and measurement.
Preferably, the portable mobile subsystem comprises a plurality of independent boxes, a bottom plate and a plurality of rollers arranged below the bottom plate, so that the portable mobile subsystem is convenient for mobile measurement, and the boxes respectively accommodate the X-ray fluorescence spectrum analysis subsystem, the emission spectrum semi-quantitative analysis subsystem and the acid-soluble alkali-fusible inductively coupled plasma emission spectrum analysis and acid-soluble alkali-fusible inductively coupled plasma mass spectrometer analysis subsystem.
Preferably, the roller is connected with a driving device.
The invention has the beneficial effects that:
the portable ore element content analysis system forms a set of independent equipment which can be moved and used according to the test working condition, has wide application range, multiple targeted ore types and convenient and fast operation, combines an acid dissolution method and an alkali melting method with an inductively coupled plasma emission spectrometer and an inductively coupled plasma mass spectrometer, and establishes an analysis method formed by combining a traditional chemical method and a modern large-scale instrument with a rare element analysis system and a technical index completion condition.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. The objects and features of the present invention will become more apparent in view of the following description taken in conjunction with the accompanying drawings, in which:
fig. 1 is a schematic structural diagram of a portable analysis and detection system for the content of elements in ore according to an embodiment of the invention.
Detailed Description
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Referring to fig. 1, a portable analysis and detection system for the content of elements in ore comprises: the X-ray fluorescence spectrum analysis subsystem is arranged in the box body; an emission spectrum semi-quantitative analysis subsystem; an acid-soluble alkali-soluble inductively coupled plasma emission spectrum analysis and acid-soluble alkali-soluble inductively coupled plasma mass spectrometer analysis subsystem; the portable mobile subsystem is provided with a plurality of openable independent test windows, and the inside of each independent test window is fixedly provided with the X-ray fluorescence spectrum analysis subsystem; the emission spectrum semi-quantitative analysis subsystem and the acid-soluble alkali-soluble inductively coupled plasma emission spectrum analysis and acid-soluble alkali-soluble inductively coupled plasma mass spectrometer analysis subsystem, the fixing device for fixing the three systems is a three-tooth fixing device, the three-tooth fixing device comprises a base, a three-tooth chute, a fixing tooth, an air pressure port and a hydraulic port fixing port, the fixing port is arranged at the center of the top of the three-tooth fixing device, a fixed air pressure meter, the air pressure port, the hydraulic port and the fixed air pressure meter are arranged on the base and face towards three independent test windows, the farthest width between the three independent test windows is smaller than the width of the three independent test windows, a multifunctional support handle is arranged on the outer side of the vertical surface at the opposite side of each test window, the multifunctional support handle comprises a handle body, a damping hinge and a movable winding rod, the handle body is fixed on a dropping box, the outside cross-section of the handle body that the gap was kept apart is narrow hexagon, and handle body both ends set up the damping hinge that drops, have movable wire winding pole through the damping hinge connection that drops, and the terminal upper and lower both sides of activity wire winding pole are equipped with the bead, and the bead that drops is semi-circular structure, and the upper and lower both sides of the activity wire winding pole that drops are equipped with spacing steel cable, and spacing steel cable one end that drops is connected at activity wire winding pole and is close to handle body side, and the other end is connected on the box.
Wherein, the X-ray fluorescence spectrum analysis subsystem comprises an X-ray fluorescence spectrometer (ZSX100E type Japan science, ultraviolet visible spectrophotometer (TU-1950), a polarograph (JP-303), a powder sample pressing machine (BP-1), an oscillation mixing ball mill (MM301), a platform scale (MP500B), polyethylene (HDPE) and microcrystalline cellulose (AR), an electronic balance (Mettler AL 104), a muffle furnace (KSW-12-12), an oven (DHG90/101A), a high-frequency sample melting machine, a numerical control ultrasonic cleaner, an electric furnace, a water purifier, a composite flux, lithium nitrate, lithium bromide, ammonium iodide and hydrochloric acid, when the ore element content determination analysis is carried out, the X-ray tube voltage and the current of the sieve plate X-ray fluorescence spectrometer are respectively 60kV and 60mA, the crystal is LiF200, and the collimator is 150 microns, and the X-ray fluorescence spectrum analysis method comprises the following steps:
step 11, respectively putting 8 national first-class standard substances of ore samples, 1 polymetallic ore, 3 water system sediments and 2 national first-class standard substances of soil into a 60mL ground glass bottle with a label, putting the ground glass bottle into an oven, baking the ground glass bottle for 2 to 3 hours at the temperature of 80 ℃, taking out the ground glass bottle and putting the ground glass bottle into a dryer for later use;
step 12, accurately weighing dry standard substances according to the proportion of the mixed standard substances to ensure a certain concentration gradient, placing the dry standard substances in an oscillation mixing ball mill, adjusting the frequency to be 30 times/s, and oscillating and uniformly mixing for 30 minutes for later use;
in this embodiment, the standard substances, the mixing ratio, and the total mass are respectively:
1) GBW07281 GBW07311 mixing ratio 1: 7, total mass 4.0000 g;
2) GBW07281 GBW07306 mixing ratio 2: 2, total mass 4.0000 g;
3) GBW07238 GBW07164 mixing ratio 2: 2, total mass 4.0000 g;
4) GBW07240 GBW07312 mixing ratio 2: 2, total mass 4.0000 g;
5) GBW07241 GBW07405 mixing ratio 1: 3, total mass 4.0000 g;
step 13, preparing a sample: two methods are included, the first method is: adding a little binder into high-siliceous ore, weighing 0.30g microcrystalline cellulose in 4.00g sample, placing on an oscillation mixing ball mill, adjusting frequency to 30 times/s, oscillating and mixing for 3min, transferring the mixed sample into a cavity mould, edging a substrate with low-pressure polyethylene, keeping pressure at 32MPa for 40s to form a powder tabletting sample with outer diameter of 40mm and sample diameter of 32mm, writing sample number, placing in a drier for later use (the ore sample is easy to absorb moisture, if not immediately determined, the sample is placed in the drier for storage, and the sample is easy to absorb moisture after being irradiated by X-rayCracking, wherein whether the sample is cracked or not is detected before the same sample wafer is subjected to multiple detections, so that the sample is prevented from falling off to damage an X-ray tube in the detection process); the second method is as follows: firstly, carrying out pretreatment of a fusing agent and an oxidizing agent, wherein the pretreatment comprises the adoption of a composite fusing agent Li2B4O7:LiBO2LiF (mass ratio is 4.5: 1: 0.4), burning to remove moisture before use, pouring the composite flux into a 500mL porcelain dish, placing the porcelain dish into a muffle furnace, staying at 200 ℃ for 15-20 minutes, then heating to 650 ℃, keeping for 3 hours after reaching the temperature, taking out the porcelain dish, placing the porcelain dish into a dryer for cooling, transferring the porcelain dish into an original bottle after cooling, placing the porcelain dish into the dryer for standby, wherein an oxidant adopts LiNO3Mixing LiNO with LiNO3Transferring to a large beaker, baking for 3 hours at 105 ℃, taking out, placing in a dryer for cooling, transferring to a 250mL ground glass bottle with a label after cooling, and placing in the dryer for later use; then preparing a sample, accurately weighing 6.0000g (+ -0.0001 g) of composite flux, 0.2000g (+ -0.0001 g) of standard substance and internal control sample in a 30mL porcelain crucible, finally weighing 1.0000g (+ -0.0010 g) of oxidant, uniformly mixing the sample in the porcelain crucible by using a glass rod, pouring the mixture into a platinum-yellow crucible (the mass ratio is 95: 5), adding 5 drops of 20% LiBr solution, melting in a GGB-2 type high-frequency melting machine, pre-oxidizing at 650 ℃ for 6 minutes, melting at 1050 ℃ for 7 minutes, adding 20mg NH in the high-temperature melting rotation process4I is used as a release agent, a sample is poured into a mold which is kept warm on an electric furnace after melting, the mold is taken down from the electric furnace and is placed on a fire-resistant plate for cooling and demolding, then a crucible which is used for melting the sample is placed into a 20% HCl solution for ultrasonic treatment for 5 minutes, meanwhile, another prepared crucible is used for melting the sample, a sample piece in the mold is poured after 5 minutes, a label is pasted on the sample piece, the sample piece is placed into a self-sealing bag and is placed in a dryer for storage, the mold is placed back to the electric furnace again for heating, the cleaned crucible is taken out and is cleaned with pure water and baked, and the process is circulated;
step 14, using compton scattered rays of a rhodium target as an internal standard, adopting a philips matrix correction mode, combining a theoretical influence coefficient and an empirical coefficient, and combining concentration correction and intensity correction to obtain a standard curve so as to correct overlapping interference and absorption enhancement effect among elements, matrix effect and spectral line interference, and partially correct granularity effect and mineral effect; the matrix correction method comprises the steps of measuring the content or counting rate of elements, analyzing the intercept of the elements, overlapping interference coefficients, the slope and counting rate of a correction curve of the analysis elements, coexisting (or overlapping interference) element data and carrying out mathematical correction after the relation among all parameters of the matrix correction factors, wherein the related elements comprise the analysis elements, a plurality of coexisting elements and overlapping interference elements. After the step 14 is adopted, the quality linearity of curve regression is good, the detection limit of the method is improved, the internal control sample verification of the sample uniformity by adopting relative deviation calculation is very good, and the precision and the accuracy of the method by adopting relative error allowance calculation are very high.
The matrix is a sample to be measured and comprises all components of elements to be measured and elements not to be measured, and the error in the wavelength dispersion X-ray spectral analysis and the energy dispersion X-ray fluorescence spectral analysis is mainly caused during the matrix effect. The incremental method is a standard addition method, and the analysis elements in a sample are measured by adding a certain content of analysis elements or a standard sample containing the analysis elements into the analysis sample to be measured.
When the primary X-ray spectrum generated by an X-ray tube, namely X-rays generated by a secondary target are irradiated on a sample, characteristic X-rays generated by the sample to be detected are directly absorbed by the detector, and the characteristic X-rays with different energies are processed by a photomultiplier tube circuit to obtain the intensity of the characteristic X-ray spectrum of an element to be analyzed; the detector consists of a detection unit and a control unit, wherein the detection unit comprises an X-ray tube, a Si-PIN detector and a high-voltage generation module for providing high voltage for the work of the X-ray tube. The light-emitting tube is excited by adopting proper experimental parameters and the strength of the light tube is increased, which is beneficial to improving the analysis detection limit of the instrument, and meanwhile, the proper tube voltage and tube current are found by improving the peak-to-back ratio and increasing the counting of the characteristic peaks
The acid-soluble alkali-soluble inductively coupled plasma emission spectrometry and acid-soluble alkali-soluble inductively coupled plasma mass spectrometer analysis subsystem comprises an analytical balance, an electric hot plate, a full-spectrum direct-reading spectrometer (ICP-AES), an inductively coupled plasma mass spectrometer (ICP-MS), superior pure hydrochloric acid, superior pure nitric acid, superior pure hydrofluoric acid, superior pure perchloric acid, superior pure argon, high-purity deionized water and 1mg/mL of analytical element standard stock solution (developed by a national nonferrous metal and electronic material analysis and test center), and the stock solution is diluted step by step to prepare corresponding mixed standard working liquid according to a sample melting mode, sample content and content difference conditions among measured elements, and the method comprises the following steps:
step 21, processing the sample by an acid dissolution method or an alkali fusion method, wherein the method comprises the following three types:
if the rare elements determined by analysis belong to alkali metals, a conventional mixed acid and acid method is adopted, and the method comprises the following steps: accurately weighing 0.1000-0.5000g of a rare metal ore national standard substance into a polytetrafluoroethylene crucible, wetting the sample with a small amount of water, adding 15-30mL of mixed acid (hydrofluoric acid + hydrochloric acid + nitric acid + perchloric acid is 5+7+2+1), placing the sample on an electric heating plate, heating and dissolving at 200 ℃, stopping heating the electric heating plate after all the acid is evaporated to dryness after about 4 hours, adding 5mL of dilute hydrochloric acid (2+3), heating and leaching for 5 minutes, taking down the sample for cooling, transferring the sample into a 25mL colorimetric tube, fixing the volume to 20mL, shaking uniformly, standing for 2 hours, taking out 1mL of clear liquid, fixing the volume to 5mL, shaking uniformly for later use, and determining by using an inductance plasma mass spectrometer or an inductance coupling plasma emission spectrometer;
if the element to be analyzed and determined is beryllium, a high-pressure mixed acid-dissolution method or a sodium peroxide alkali-dissolution method is adopted, because the content of beryllium has a large influence on the decomposition difficulty of the sample, most of the beryllium exists in silicate minerals and is difficult to decompose compared with common silicate, the sample can be completely decomposed only by repeated dissolution, or the element is directly determined by the alkali-dissolution method, the acid-dissolution method cannot be selected for analyzing and determining the sample with high beryllium content, and the pretreatment method is adopted for the sample with low beryllium content. The method comprises the steps of accurately weighing 0.1000-0.5000g of a rare metal ore national standard substance into a polytetrafluoroethylene crucible by using an analytical balance, wetting the sample by using a small amount of water, adding 15-30mL of mixed acid (hydrofluoric acid + hydrochloric acid + nitric acid + perchloric acid is 5+7+2+1), placing the sample on an electric heating plate, heating and dissolving at 200 ℃, stopping heating an electric heating plate after all acid is evaporated to dryness about 4 hours, adding 5mL of dilute hydrochloric acid (2+3), heating and leaching for 5 minutes, taking down the sample to be cooled, transferring the sample into a 25mL colorimetric tube, fixing the volume to 20mL, shaking up, standing for 2 hours, taking out a clear solution for 1mL, fixing the volume to 5mL, shaking up, and determining by using an inductive plasma mass spectrometer or an inductively coupled plasma emission spectrometer; respectively and accurately weighing 0.1000-0.5000g of a sample of a national standard substance of rare metal ore in a high-aluminum crucible by using an analytical balance by using a sieve plate sodium peroxide alkali fusion method, then adding about 1g-3g of sodium peroxide and uniformly stirring, covering a layer of sodium peroxide on the sample, putting the sample into a muffle furnace at 700 ℃ for melting for 10 minutes, taking out the sample and waiting for cooling, putting the crucible into a cleaned 200mL beaker after cooling, leaching the crucible by using boiling deionized water, then adding 20mL of hydrochloric acid into the beaker for acidification, washing the crucible out, preventing the beaker from being heated on an electric heating plate, concentrating the volume of the sample to 70mL, transferring the sample into a 100mL glass volumetric flask, shaking up and standing for later use, and performing analytical determination by using an inductively coupled plasma emission spectrometer or performing analytical determination by using an inductively coupled plasma mass spectrometer after dilution;
if the element to be analyzed is zirconium element, the method adopts the combination of a mixed acid-dissolution method and an alkali-fusion method, and comprises the following steps: respectively and accurately weighing 0.1000g of a sample of a rare metal ore national standard substance into a 30mL corundum crucible, adding 1.5000g of sodium peroxide, uniformly stirring by using a glass rod, covering a layer of sodium peroxide on the sample, then placing the sample into a muffle furnace for melting, setting the temperature to 700 ℃, setting the melting time to be about 10 minutes, taking out the sample for cooling, placing the sample into a beaker after cooling, adding 60mL of hot water for extraction, washing the sample out of the crucible by using a small amount of hydrochloric acid and water after a violent reaction is generated in the beaker, placing the beaker on an electric heating plate for heating, taking down the sample after slightly boiling for 1 minute, filtering the solution after cooling, washing the beaker by using a 20% sodium hydroxide solution, then dissolving the precipitate by using dilute nitric acid to obtain a sample solution for ICP-AES (inductively coupled plasma emission spectrometer) analysis and determination.
And step 22, measuring by using an inductive plasma mass spectrometer or an inductive coupling plasma emission spectrometer.
The portable mobile subsystem comprises a plurality of independent boxes, a bottom plate and a plurality of rollers arranged below the bottom plate, and is convenient for mobile measurement, the plurality of boxes of the sieve plate respectively contain an X-ray fluorescence spectrum analysis subsystem, an emission spectrum semi-quantitative analysis subsystem and an acid-soluble alkali-soluble fused inductive coupling plasma emission spectrum analysis and acid-soluble alkali-fused inductive coupling plasma mass spectrometer analysis subsystem, and the rollers of the sieve plate are connected with a driving device (including but not limited to a small motor).
The portable ore element content analysis system forms a set of independent equipment which can be moved and used according to the test working condition, has wide application range, multiple targeted ore types and convenient and fast operation, combines an acid dissolution method and an alkali melting method with an inductively coupled plasma emission spectrometer and an inductively coupled plasma mass spectrometer, and establishes an analysis method formed by combining a traditional chemical method and a modern large-scale instrument with a rare element analysis system and a technical index completion condition.
While the present invention has been described with reference to the particular illustrative embodiments, it is not to be restricted by the embodiments but only by the appended claims. It will be understood by those skilled in the art that variations and modifications of the embodiments of the present invention can be made without departing from the scope and spirit of the invention.
Claims (10)
1. A portable analysis detecting system of element content in ore which characterized in that: comprises a box body and mutually independent X-ray fluorescence spectrum analysis subsystems; an emission spectrum semi-quantitative analysis subsystem; an acid-soluble alkali-soluble inductively coupled plasma emission spectrum analysis and acid-soluble alkali-soluble inductively coupled plasma mass spectrometer analysis subsystem; the portable subsystem is provided with a plurality of openable independent test windows, and an X-ray fluorescence spectrum analysis subsystem is fixedly arranged in each independent test window; the emission spectrum semi-quantitative analysis subsystem and the acid-soluble alkali-soluble inductively coupled plasma emission spectrum analysis and acid-soluble alkali-soluble inductively coupled plasma mass spectrometer analysis subsystem, the fixing device for fixing the three systems is a three-tooth fixing device, the three-tooth fixing device comprises a base, a three-tooth chute, a fixing tooth, an air pressure port and a hydraulic port fixing port, the fixing port is arranged at the center of the top of the three-tooth fixing device, a fixed air pressure meter, the air pressure port, the hydraulic port and the fixed air pressure meter are arranged on the base, face towards three independent test windows, the farthest width between the three independent test windows is smaller than the width of the three independent test windows, a multifunctional support handle is arranged on the outer side of the vertical surface at the opposite side of each test window, the multifunctional support handle comprises a handle body, a damping hinge and a movable winding rod, the handle body is fixed on the box body, the outside cross-section of the handle body that the gap was kept apart is narrow hexagon, and handle body both ends set up the damping hinge, through damping hinge connection has the activity wire winding pole, and the terminal upper and lower both sides of activity wire winding pole are equipped with the bead, the bead is semi-circular structure, the upper and lower both sides of activity wire winding pole are equipped with spacing steel cable, spacing steel cable one end is connected and is close to handle body side at the activity wire winding pole, and the other end is connected on the box.
2. The portable analysis and detection system for the content of elements in ore according to claim 1, characterized in that: the X-ray fluorescence spectrum analysis subsystem comprises an X-ray fluorescence spectrometer, an ultraviolet-visible spectrophotometer, a polarograph, a powder sample press, an oscillation mixing ball mill, a platform scale, polyethylene, microcrystalline cellulose, an electronic balance, a muffle furnace, an oven, a high-frequency sample melting machine, a numerical control ultrasonic cleaner, an electric furnace, a water purifier, a composite flux, lithium nitrate, lithium bromide, ammonium iodide and hydrochloric acid.
3. The portable analysis and detection system for the content of elements in ore according to claim 2, characterized in that: when the ore element content determination analysis is carried out, the voltage and the current of an X-ray tube of the X-ray fluorescence spectrometer are respectively 60kV and 60mA, the crystal is LiF200, the collimator is 150 microns, and the method comprises the following steps:
step 11, respectively putting 8 national first-class standard substances of ore samples, 1 polymetallic ore, 3 water system sediments and 2 national first-class standard substances of soil into a 60ml ground glass bottle with a label, putting the ground glass bottle into an oven, baking the ground glass bottle for 2 to 3 hours at the temperature of 80 ℃, taking out the ground glass bottle and putting the ground glass bottle into a dryer for later use;
step 12, accurately weighing dry standard substances according to the proportion of the mixed standard substances to ensure a certain concentration gradient, placing the dry standard substances in an oscillation mixing ball mill, adjusting the frequency to be 30 times/s, and oscillating and uniformly mixing for 30 minutes for later use;
step 13, preparing a sample: two methods are included, the first method is: adding a little binder into high-siliceous ore, weighing 0.30g microcrystalline cellulose in 4.00g sample, placing on an oscillation mixing ball mill, adjusting frequency to 30 times/s, oscillating and mixing for 3min, transferring the mixed sample into a cavity mould, edging a substrate with low-pressure polyethylene, keeping pressure at 32MPa for 40s to form a powder tabletting sample piece with outer diameter of 40mm and sample diameter of 32mm,writing a sample number, and placing the sample number in a dryer for later use; the second method is as follows: firstly, carrying out pretreatment of a fusing agent and an oxidizing agent, wherein the pretreatment comprises the following steps of: 1: 0.4 composite flux Li2B4O7 LiBO2 LiF, burning to remove water before use, pouring the composite flux into a 500ml porcelain dish, putting the porcelain dish into a muffle furnace, staying at 200 ℃ for 15-20 minutes, then heating to 650 ℃, keeping for 3 hours after reaching the temperature, taking out and putting the porcelain dish into a drier for cooling, transferring the porcelain dish into an original bottle after cooling, putting the porcelain dish into the drier for standby, wherein an oxidant adopts LiNO3Mixing LiNO with LiNO3Transferring to a large beaker, baking for 3 hours at 105 ℃, taking out, placing in a dryer for cooling, transferring to a 250ml ground glass bottle with a label after cooling, and placing in the dryer for later use; then, a sample was prepared, 6.0000g (± 0.0001g) of the composite flux, 0.2000g (± 0.0001g) of the standard substance and the internal control sample were accurately weighed in a 30ml porcelain crucible, and finally, 0.1000g (± 0.0010g) of the oxidizing agent was weighed, and the sample was mixed with a glass rod in a mass ratio of 95: 5, uniformly mixing the mixture in a ceramic crucible, pouring the mixture into a platinum-yellow crucible, adding 5 drops of 20 percent LiBr solution, melting the mixture in an GGB-2 type high-frequency melting machine, pre-oxidizing the mixture at 650 ℃ for 6 minutes, melting the mixture at 1050 ℃ for 7 minutes, and adding 20mgNH into the mixture in the high-temperature melting and rotating process4I is used as a release agent, a sample is poured into a mold which is kept warm on an electric furnace after melting, the mold is taken down from the electric furnace and is placed on a fire-resistant plate for cooling and demolding, then a crucible which is used for melting the sample is placed into a 20% HCl solution for ultrasonic treatment for 5 minutes, meanwhile, another prepared crucible is used for melting the sample, a sample piece in the mold is poured after 5 minutes, a label is pasted on the sample piece, the sample piece is placed into a self-sealing bag and is placed in a dryer for storage, the mold is placed back to the electric furnace again for heating, the cleaned crucible is taken out and is cleaned with pure water and baked, and the process is circulated;
step 14, using compton scattered rays of a rhodium target as an internal standard, adopting a philips matrix correction mode, combining a theoretical influence coefficient and an empirical coefficient, and combining concentration correction and intensity correction to obtain a standard curve so as to correct overlapping interference and absorption enhancement effect among elements, matrix effect and spectral line interference, and partially correct granularity effect and mineral effect; the matrix correction method comprises the steps of measuring the content or counting rate of elements, analyzing the intercept of the elements, overlapping interference coefficients, the slope and counting rate of a correction curve of the elements, coexisting or overlapping interference element data and carrying out mathematical correction after the relation among all parameters of matrix correction factors, wherein the related elements comprise the elements to be analyzed, various coexisting elements and overlapping interference elements.
4. A portable analysis and detection system for the content of elements in ore according to claim 3, characterized in that: the method of step 14 may also adopt an empirical classification method and an incremental method to perform the matrix effect correction, wherein the empirical analysis method artificially classifies the measured objects according to the differences between the matrix components and the geometric conditions of the measured objects, respectively establishes corresponding standard curves or mathematical correction models, and then quantitatively samples the measured objects of different types using the corresponding standard curves or mathematical correction models, and since the matrix components of the same type of samples are very similar, the geometric conditions of the samples have better consistency, the accuracy of the measurement effect is higher, and the purpose of the matrix effect correction can be achieved; the incremental method is a standard addition method, and is used for measuring an analysis element in a sample by adding a certain content of the analysis element or a standard sample containing the analysis element into the analysis sample to be measured.
5. The portable analysis and detection system for the content of elements in ore according to claim 1, characterized in that: the emission spectrum semi-quantitative analysis subsystem comprises an energy dispersion X-ray fluorescence spectrometer, wherein the spectrometer consists of an X-ray generator, a detector and a data recording and processing part, when a primary X-ray spectrum generated by an X-ray tube irradiates a sample through X-rays generated by a secondary target, characteristic X-rays generated by the sample to be detected are directly absorbed by the detector, and the characteristic X-rays with different energies are processed by a photomultiplier tube circuit to obtain the intensity of the characteristic X-ray spectrum of an element to be analyzed; the detector consists of a detection unit and a control unit, wherein the detection unit comprises an X-ray tube, a Si-PIN detector and a high-voltage generation module for providing high voltage for the work of the X-ray tube.
6. The portable analysis and detection system for the content of elements in ore according to claim 1, characterized in that: the acid-soluble alkali-soluble inductively-coupled plasma emission spectrum analysis and acid-soluble alkali-soluble inductively-coupled plasma mass spectrometer analysis subsystem comprises an analytical balance, an electric hot plate, a full-spectrum direct-reading spectrometer, an inductively-coupled plasma mass spectrometer, superior pure hydrochloric acid, superior pure nitric acid, superior pure hydrofluoric acid, superior pure perchloric acid, superior pure argon, high-purity deionized water and 1mg/ml analytical element standard stock solution, and the stock solution is diluted step by step to prepare corresponding mixed standard working liquid according to a sample melting mode, sample content and content difference conditions among the measured elements.
7. The portable analysis and detection system for the content of elements in ore according to claim 6, characterized in that: the detection by adopting the acid-soluble alkali-soluble inductively coupled plasma emission spectrum analysis and the acid-soluble alkali-soluble inductively coupled plasma mass spectrometer analysis subsystem comprises the following steps:
step 21, processing the sample by adopting an acid dissolution method or an alkali fusion method;
and step 22, measuring by using an inductive plasma mass spectrometer or an inductive coupling plasma emission spectrometer.
8. The portable analysis and detection system for the content of elements in ore according to claim 7, characterized in that: the step 21 includes three types:
if the rare elements determined by analysis belong to alkali metals, a conventional mixed acid and acid method is adopted, and the method comprises the following steps: accurately weighing 0.1000-0.5000g of a rare metal ore national standard substance into a polytetrafluoroethylene crucible, wetting the sample with a small amount of water, adding mixed acid 15-30m according to the proportion of hydrofluoric acid, hydrochloric acid, nitric acid and perchloric acid to 5+7+2+1, putting the sample on an electric heating plate, heating and dissolving at 200 ℃, stopping heating the electric heating plate after all the acid is evaporated to dryness after about 4 hours, adding 5mL of dilute hydrochloric acid, heating and leaching for 5 minutes, taking down the solution to be cooled, transferring the solution into a 25mL colorimetric tube, fixing the volume to 20mL, shaking uniformly, standing for 2 hours, taking out 1mL of clear solution, fixing the volume to 5mL, shaking uniformly for determination by adopting an inductive plasma mass spectrometer or an inductively coupled plasma emission spectrometer;
if the element analyzed and determined is beryllium element, a high-pressure mixed acid-dissolution method or a sodium peroxide alkali-dissolution method is adopted, wherein the high-pressure acid-mixing acid-dissolving method accurately weighs 0.1000-0.5000g of sample of national standard substance of rare metal ore in a polytetrafluoroethylene crucible by using an analytical balance, wets the sample with a small amount of water, then adding 15-30ml of mixed acid according to the proportion of hydrofluoric acid, hydrochloric acid, nitric acid and perchloric acid which are 5+7+2+1, putting the sample on an electric heating plate, heating and dissolving at the temperature of 200 ℃, after all the acid is evaporated to dryness in about 4 hours, stopping heating with an electric heating plate, adding 5ml dilute hydrochloric acid, heating and leaching for 5 min, taking down for cooling, transferring into a 25ml colorimetric cylinder, fixing the volume to 20ml, shaking up, standing for 2 hours, then taking out 1ml of clear liquid, fixing the volume to 5ml, shaking up, and then measuring by adopting an inductive plasma mass spectrometer or an inductively coupled plasma emission spectrometer; the sodium peroxide alkali fusion method uses an analytical balance to accurately weigh 0.1000-0.5000g of rare metal ore national standard substances into a high-aluminum crucible respectively, then adding about 1g to 3g of sodium peroxide and stirring uniformly, covering a layer of sodium peroxide on a sample, putting the sample into a muffle furnace at 700 ℃ for melting for 10 minutes, taking out the sample and waiting for cooling, putting the crucible into a cleaned 200mL beaker after cooling and leaching the crucible by using boiling deionized water, then adding 20mL of hydrochloric acid into the beaker for acidification, washing the crucible out, and the beaker is prevented from being heated on an electric hot plate, the sample volume is concentrated to 70mL, and the sample is transferred into a 100mL glass volumetric flask, shaking up and standing for analysis and determination by using an inductively coupled plasma emission spectrometer or analysis and determination by using an inductively coupled plasma mass spectrometer after dilution;
if the element to be analyzed is zirconium element, the method adopts the combination of a mixed acid-dissolution method and an alkali-fusion method, and comprises the following steps: respectively and accurately weighing 0.1000 sample of a rare metal ore national standard substance into a 30mL corundum crucible, adding 1.5000g of sodium peroxide, uniformly stirring by using a glass rod, covering a layer of sodium peroxide on the corundum crucible, then placing the corundum crucible into a muffle furnace for melting, setting the temperature to 700 ℃, setting the melting time to be about 10 minutes, taking out the corundum crucible for cooling, placing the corundum crucible into a beaker after cooling, adding 60mL of hot water for extraction, washing the sample out of the crucible by using a small amount of hydrochloric acid and water after a violent reaction is generated in the beaker, placing the beaker on an electric heating plate for heating, taking down the beaker after slightly boiling for 1 minute, filtering the solution after cooling, washing the beaker by using a 20% sodium hydroxide solution, and then dissolving the precipitate by using dilute nitric acid to obtain a sample solution for measurement by using an ICP-AES (inductively coupled plasma emission spectrometer) for analysis and measurement.
9. The portable analysis and detection system for the content of elements in ore according to claim 1, characterized in that: the portable mobile subsystem comprises a plurality of independent boxes, a bottom plate and a plurality of rollers arranged below the bottom plate, and is convenient for mobile measurement, and the boxes respectively accommodate an X-ray fluorescence spectrum analysis subsystem, an emission spectrum semi-quantitative analysis subsystem and an acid-soluble alkali-soluble inductive coupling plasma emission spectrum analysis and acid-soluble alkali-soluble inductive coupling plasma mass spectrometer analysis subsystem.
10. The portable analysis and detection system for the content of elements in ore according to claim 9, characterized in that: the roller is connected with a driving device.
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