CN108107067A - For being enriched with and measuring the system and method for contained element in fluid - Google Patents
For being enriched with and measuring the system and method for contained element in fluid Download PDFInfo
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- CN108107067A CN108107067A CN201611047362.1A CN201611047362A CN108107067A CN 108107067 A CN108107067 A CN 108107067A CN 201611047362 A CN201611047362 A CN 201611047362A CN 108107067 A CN108107067 A CN 108107067A
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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
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Abstract
The present invention discloses a kind of system and method system for being used to being enriched with and measuring contained element in fluid.The method includes：(a) fluid sample is made to flow through enrichment material, so that the test substance of fluid sample is collected in enrichment material；And (b) is measured using the enrichment material that portable X-ray fluorescence analyzer (XRF) directly has test substance to collection, to obtain measurement result.The present invention selects specific enrichment material for different test substances, and coordinates the XRF for first passing through specific software design in advance, can obtain desired measure content.In addition, the present invention can also and be effectively selected with prior-warning device for the optimal sampling time point of test substance and time length.Whereby, the present invention can quickly reach effective and inexpensive monitor and detection of fluid sample composition in real time.
Description
Technical field
The present invention relates to a kind of system and method for contained element in enrichment and determination sample, more particularly to one kind
For being enriched with and measuring the system and method for contained element in fluid.
Background technology
In the prior art, if the element in fluid to be measured (and gas or liquid) sample forms, usually use
Inductively coupled plasma mass spectrometry analyzer (Inductively Coupled Plasma-Mass Spectrometer, ICP-
MS) fluid samples are detected.The operating principle of ICP-MS is to be reused sample ionization with inductively coupled plasma
Mass spectrograph is separated according to sample quality, to carry out qualitative and quantitative detection.
To be detected by ICP-MS in stream current exemplified by content of beary metal, in operation, it is necessary in advance to taking
Stream current sample is taken in sample place, then by stream current sample transport to laboratory and carries out necessary pre-treatment, then with
ICP-MS is detected.Specifically, after by sample transport to laboratory, it can generally utilize atomizer (Nebulizer) right
Sample carries out atomization process, then the gas glue (Aerosol) containing substance to be analyzed is delivered to plasma by carrying air-flow
In, subsequently go the reactions such as solvent, decomposition, atomization/ionization via a series of, be analysed to element be converted to unit price just from
Son.And then mass analyzer (the Mass- of mass spectrograph (Mass Spectrometer) is transferred by vacuum interface
Analyzer after the ion of each specific mass-to-charge ratio (Mass-to-charge ratios)) is given parsing, it is subject to detecting system
Detection, Come is into the qualitative and paced work of row element.
It is had the disadvantage that however, the flow at least exists：(1) it is unable to reach element contained by real time monitoring fluid sample
Effect, (2) detection result be limited to instrument detectable limit and (3) testing cost it is high.First, in (1) being put,
Program is detected again due to having to sample being transported in laboratory in the flow, after being sampled, and is limited to
The scheduling of detection and required activity duration can not make to obtain testing result in the short time of user after sampling.With regard to
(2) put in, if in sample the content of material of institute's pre-monitoring or concentration it is too low and do not reach instrument detectable limit, can not be successfully
It detects or needs to carry out and outer concentration, the program of extraction sample, increase the complexity of detection.Finally, with regard to (3) point
In, sample, which is sent to laboratory, to test must spend certain money and time cost.
Furthermore equally to detect in stream current exemplified by content of beary metal, it may occur however that situation for factory dealer at night
Between or specific time section in be emitted into waste water is illegal in rivers and creeks.Thus, if the time being sampled is not in institute
In the section for stating effluent steathily, then it can not effectively achieve the effect that monitoring.In other words, when fluid samples are sampled,
How to determine that the time point of sampling is equally the problem that can be faced in this field.Other known relevant samplings and detection method
It is such.
Therefore, it is in need provide it is a kind of it is quick, in real time and with lower cost for measuring contained element in fluid
System and method, to solve the missing in the presence of this field.It is preferred that this system and method can also judge to be sampled
Time point, to achieve the effect that contained element in optimal monitoring fluid sample.
The content of the invention
In order to solve described problem, a wherein embodiment according to the present invention provides a kind of contained in fluid for measuring
The method of element, comprises the steps of：(a) a fluid sample flow is made through an enrichment material, so that the one of fluid sample is to be measured
Substance is collected in enrichment material；And (b) directly has test substance using a portable X-ray fluorescence analyzer to collection
Enrichment material be measured, to obtain a measurement result, wherein, measurement result includes the element composition of test substance and rich
At least one of two kinds of the content of test substance collected by collection material.
In one aspect of the invention, enrichment material is selected from by ion exchange resin, granular or powder type work
The group that property carbon, alkaline filter material and its mixture are formed.
In one aspect of the invention, test substance is to be selected from by simple substance, anion, cation, compound and its mix
Close the group that object is formed.
In one aspect of the invention, before step (a), further comprise：By a prior-warning device to determine to hold
The time point of row step (a).
In one aspect of the invention, prior-warning device includes at least one to obtain the sensor of an enabling signal and one
To export the sender unit of enabling signal, and sensor is to be selected to be passed by ph value sensor, temperature sensor, pressure
The group that sensor, flow sensor and conductivity sensor and combinations thereof are formed.
Another embodiment of the present invention provides a kind of system for measuring contained element in fluid, and it includes a sampling dresses
It puts and a detection device.Sampler includes an enrichment material, and sampler is activated so that first-class body sample flow is enriched
Material a, so that test substance of fluid sample is collected in enrichment material.It is glimmering that detection device includes a Portable X-ray
Light analyzer, detection device are directly measured enrichment material by portable X-ray fluorescence analyzer, are measured with obtaining one
As a result, wherein, measurement result includes the content of the element composition and test substance of test substance in enrichment material at least
It is a kind of.
In one aspect of the invention, enrichment material is selected from by ion exchange resin, granular or powder type work
The group that property carbon, alkaline filter material and its mixture are formed.
In one aspect of the invention, for measuring the system of contained element in fluid, early warning dress is further comprised
It puts, prior-warning device includes to obtain the sensor and one for the enabling signal for starting sampler at the beginning will start letter
The sender unit of sampler number is sent to, sensor is selected from by ph value sensor, temperature sensor, pressure sensing
The group that device, flow sensor, conductivity sensor and combinations thereof are formed.
In one aspect of the invention, fluid sample is an electroplate liquid, and test substance is metal ion and metal compound
Object at least one of, and prior-warning device include ph value sensor and conductivity sensor at least one of.
In one aspect of the invention, fluid sample is an admixture of gas, and test substance is at least one nonmetallic chemical combination
Object, enrichment material for activated carbon and alkaline filter material at least one of.
The beneficial effects of the present invention are provided by the present invention to be used to measure institute in fluid for the technical way of the present invention
Method and system containing element can pass through " use of enrichment material and the detection for portable X-ray fluorescence analyzer of arranging in pairs or groups "
Technical characteristic, to reach test substance in concentration and enriched fluid sample and (real-time) and on the spot (on- in real time
Site) the effect for being detected and analyzing.
Specifically, the present invention be directed to different test substances to select specific enrichment material, and pre-coordination closes
Suitable XRF Software for Design, to obtain expected measurement result.In addition, the present invention can also further have using prior-warning device
Effect selection is for the optimal sampling time point of object element and sample time length.
For the enabled feature and technology contents for being further understood that the present invention, refer to below in connection with the present invention specifically
Bright and attached drawing, however the attached drawing provided be merely provided for refer to explanation, not be used for the present invention is any limitation as.
Description of the drawings
The flow chart for being used to measure the method for contained element in fluid that Fig. 1 is provided by the embodiment of the present invention；
The functional block diagram for being used to measure the system of contained element in fluid that Fig. 2 is provided by the embodiment of the present invention；
Fig. 3 is the structure diagram of x-ray fluorescence analyzer used in the embodiment of the present invention；And
Fig. 4 by the embodiment of the present invention provide for measuring in fluid in the method and system of contained element, for pair
Enrichment material carries out the schematic diagram of the pressure-reducing filter of simple pre-treatment.
Specific embodiment
Be below illustrated by specific specific example it is presently disclosed related " for measuring contained element in fluid
System and method " embodiment, those skilled in the art can by content disclosed in this specification understand the present invention it is excellent
Point and effect.The present invention can be implemented or applied by other different specific embodiments, the various details in this specification
Different viewpoints and application are may be based on, in the lower various modifications of progress without departing from the spirit and change.In addition, the present invention
Attached drawing is only simple schematically illustrate, not according to the description of actual size, first give chat it is bright.Following embodiment will be further detailed
Illustrate the correlation technique content of the present invention, but disclosure of that is not to limit the technology scope of the present invention.Following reality
The content of each paragraph disclosed in mode is applied, also referring to shown in Fig. 1 to Fig. 4.
First, please refer to Fig.1.Fig. 1 by the embodiment of the present invention provide for the method that measures contained element in fluid
Flow chart.As shown in Figure 1, the method for being used to measure contained element in fluid that the embodiment of the present invention is provided includes following step
Suddenly：(a) a fluid sample flow is made through an enrichment material, so that a test substance of fluid sample is collected in enrichment material
(step S102)；And (b) directly had using a portable X-ray fluorescence analyzer to collection the enrichment material of test substance into
Row measures, and to obtain a measurement result, measurement result includes to be measured collected by the element composition enrichment material of test substance
Two kinds of the content of substance at least one of (step S104).
From the above, in step s 102, fluid sample is gaseous sample or fluid sample.For example, gas sample
The exhaust gas that product can be air or factory is discharged, and fluid sample can be the natural water bodies such as ocean, rivers and creeks or lake
Current, the water of reservoir, the waste water technique current (such as electroplate liquid containing organic substance) of factory or beverage etc..
In the present invention, the species system not subject to the limits of fluid sample.
Contain test substance in fluid sample, and test substance is selected from by simple substance, anion, cation, compound
And its group that mixture is formed.For example, simple substance can include the element that atomic number is more than 11, such as sulphur or arsenic；
In one preferred embodiment, simple substance can be halogen simple substance, such as (I2), bromine (Br2), chlorine (Cl2)；Cation can be zinc, cadmium,
Chromium, copper, nickel, iron, manganese, the cation of magnesium or calcium；Anion can be cl anion or the anion containing metal, such as negative electrical charge
Chromate, bichromate, permanganate of state etc.；Compound can be anion or cationic metal complex such as gold, silver,
Copper and iron cyanogen complex ion or chelate, such as ironic citrate.
In addition, compound can include sulfur-containing compound, phosphorus-containing compound, arsenical and halogen contained compound etc..
Sulfur-containing compound can be sulfate, sulphite and thiosulfate in water sample, sulfur dioxide, three oxygen in gaseous flow
Change sulphur, hydrogen sulfide and the Amino acid of mercaptan or sulfur-bearing, polypeptide or protein.Phosphorus-containing compound can be that phosphate, core are sweet
Acid and nucleic acid etc..Arsenical can be arsenate.Halogen-containing compound can be iodide, iodate, bromide, bromine
Hydrochlorate, hypochlorite and perchlorate etc..In addition, test substance can also include thulium.For to be measured
The species of substance, present invention system not subject to the limits.In a preferred embodiment, the method and system that the embodiment of the present invention is provided
It is the test substance for including element of the atomic number more than 11 for detecting.
Please equally refer to Fig. 1.In step s 102, the species of enrichment material is that the species of foundation test substance and characteristic add
With selection.Enrichment material can include sorbing material, absorbing material and/or be exchange material.It is provided in the embodiment of the present invention
Method in, enrichment material is selected from by ion exchange resin (comprising anion exchange resin and cation exchange tree
Fat), the group that is formed of granular or powder type activated carbon, alkaline filter material and its mixture.It later will be with specific real
It applies example and illustrates the example that different test substances are collected by different enrichment materials.
In step s 102, enrichment material can be under selected time point by fluid sample or fluid sample exists
It is guided under selected time point and flows through enrichment material.For example, enrichment material can be invested in by manual type
In fluid sample, enrichment material can also be invested in fluid sample or guided fluid by the sampler 1 of automation
Sample passes through enrichment material.Whereby, the test substance in fluid sample is collected in enrichment material.For example, when to be measured
Substance is heavy metal cation, and enrichment material be cation exchange resin when, heavy metal cation can by ion exchange and
It is adsorbed in enrichment material.
The effect of step S102 is, by using enrichment material, can in real time, on the spot and simply reach collection and dense
The effect of contracting test substance.Enrichment material is that selectively test substance is fixed in its structure, and other are not intended to detect
Impurity and matrix (such as water) exclude.Thus, caused by can not only overcoming the detectable limit of subsequent detection instrument
Detection limit, can also reduce as the interference caused by impurity and matrix.
Next, in step S104, directly there is the richness of test substance to collection using portable X-ray fluorescence analyzer
Collection material is measured, and to obtain measurement result, element composition and enrichment material that measurement result includes test substance are received
At least one of two kinds of the content of the test substance collected.
Refer to Fig. 3.Fig. 3 is the structure diagram of x-ray fluorescence analyzer used in the embodiment of the present invention.In this hair
In bright embodiment, detection device 2 is x-ray fluorescence analyzer.The operating principle of x-ray fluorescence analyzer, which includes, utilizes high pressure X
Radiographic source emits X-ray, to excite the atom in test substance, it is made to generate secondary x rays (fluorescence), and to these energy
Pulse is counted, and then analyzes the element composition and content of test substance.It can reach fixed using x-ray fluorescence analyzer
Property, quantitative or sxemiquantitative purpose.
As shown in figure 3, x-ray fluorescence analyzer includes x-ray source 21, detector 22, signal processor 23, central processing
Device 24 and display.X-ray source 21 is also referred to as excitaton source, is the X-ray tube comprising target, and target can be selected from by rhodium
(Rh), the group that silver-colored (Ag), chromium (Cr), molybdenum (Mo) and tungsten (W) are formed.The selection of target be according to test substance species and
Depending on characteristic.In the present invention, the material of target system not subject to the limits.X-ray source 21 to launch sample A X-ray, and
Can further be set between x-ray source 21 and sample collimator (Collimator is not shown in figure) and wave filter (Filter,
Be not shown in figure) etc. other assemblies.
From the above, for detector 22 to receive the X-fluorescence ray released by test substance, X-fluorescence ray passes through letter
The processing and computing of number processor 23 and central processing unit 24, can be converted into for qualitative analysis and quantitative analysis
Testing result.Testing result can be shown on display.For this testing result, user can rapidly know fluid
The element composition of sample or based on this PRELIMINARY RESULTS further determine whether to need to carry out next step sample treatment and other
Detection.
It is noted that the feature of the species and different enrichment materials for fluid sample is, it is necessary to penetrate Portable X
Line fluorescence analyser is programmed (programming), for example, stipulating inspection amount for the fluid sample for including different substrates
Line rapidly obtains testing result with profit.In embodiments of the present invention, the content of test substance refers to element in test substance
Content.It, can be by further analyzing and computing estimates chemistry in fluid sample according to this testing result and other data
Element forms.
The advantages of being detected using x-ray fluorescence analyzer be to detect program is relatively simple, instrument and equipment cost compared with
It is low, and from detecting that the time for obtaining testing result is relatively short.Furthermore it can be reached using portable X-ray fluorescence analyzer
Detection to " (on-site) on the spot " and almost " in real time (real-time) ".In addition, x-ray fluorescence analyzer can be directed to greatly
Partial element (including at least the element that atomic number is more than 11) is accurately detected, and is not necessary to carry out the sample of complicated and time consumption
Product pre-treatment.Finally, due to x-ray fluorescence analyzer can be directed to sample (has test substance in the embodiment of the present invention to collect
Enrichment material) be detected, therefore do not allow to be also easy to produce meaningless consumptive material, meet environmental protection and economy benefit.
Next, refer to Fig. 4.The side for being used to measure contained element in fluid that Fig. 4 is provided by the embodiment of the present invention
In method and system, for carrying out the schematic diagram of the pressure-reducing filter of simple pre-treatment to enrichment material.It is penetrated using Portable X
Line fluorescence analyser measure collect have test substance before, can by easy pre-treatment remove enrichment material in fluid or
It is other impurities, to avoid interference of the impurity to testing result, and then increases the accuracy of detection.
For example, after being sampled with enrichment material, (the also known as vacuum filter dress of pressure-reducing filter 4 can be passed through
Put) remove remaining fluid and other impurities.As shown in figure 4, enrichment material can be positioned in cloth funnel 41, and it is arranged at
Filter flask 42 below cloth funnel is connected to aspiration pump (not shown) by safety flack 43.Filter flask 42 is also known as taken out
Filter bottles of Qi Guo are a thick-walled tapered bottles with branch pipe.If matrix (such as water) amount contained by enrichment material is smaller,
Chou Qi Guo Filter test tubes (Filtering Tube) substitution filter flask 42 may be employed.Aspiration pump is usually current aspiration pump (Water
Pump)。
Detailed means and the step for operating pressure-reducing filter 4 are well known in the art, are not described in detail herein.Such as
This one, processing before being carried out by easy equipment in the place of sampling or laboratory, to further ensure that detection
Precision.
Referring to Fig. 1, and coordinate shown in Fig. 2.Fig. 2 by the embodiment of the present invention provide for measuring institute in fluid
The functional block diagram of system containing element.
Before step S102, further comprise：By prior-warning device 3 to determine to perform the time point of step S102
(step S100).Specifically, by setting prior-warning device 3, it can more accurately control what is be sampled using enrichment material
Time.Prior-warning device 3 includes at least one to the sensor 31 that obtains 1 enabling signal of sampler and starts to export
The sender unit 32 of signal sampling device 1, and sensor 31 is selected from by ph value sensor, temperature sensor, flow
The group that sensor and conductivity sensor and combinations thereof are formed.
It is worth noting that, prior-warning device 3 in addition to determine to perform the time point (Timing) of step S102, is gone back
It can be determining to perform the position of step S102 and the time (Duration) of sampling.For example, prior-warning device 3 can be with
The different position being arranged in the offer liquid of fluid sample or body gas (such as rivers and creeks or exhaust emission pipe) is provided
Multiple sensors 31, and according to the data of 31 gained of each sensor, prior-warning device 3 can determine to perform the position of step S102
It puts.In addition, at least one for performing the time of the time point of step S102, position and sampling also can in advance be set by user
It is fixed.
From the above, the species and characteristic of the fluid sample of foundation pre-monitoring, can select different sensors 31 to take
Obtain enabling signal.In other words, sensor 31 can be generated according to the physics of monitoring fluid sample and the change of chemical property
Enabling signal is sampled so as to the sampler 1 of instruction user or automation using enrichment material.
For example, if the water quality of pre-monitoring rivers and creeks specific position, it can install in sampling spot and be passed equipped with pH-value
The prior-warning device 3 of sensor and sender unit 32.The sender unit 32 of prior-warning device 3 can with for launching enrichment material
Sampler 1 or user (testing staff) the connection of electronic device signal, be electrically connected or wireless or blue to pass through
Bud mode reaches signal transmission, and then enabling signal caused by sensor 31 is transmitted to sampler 1 or user terminal.
From the above, when the pH-value that the ph value sensor of prior-warning device 3 senses the current in rivers and creeks changes
(for example, it may be possible to causing water quality slant acidity due to heavy metal ion contained in waste water), ph value sensor can obtain
Enabling signal, and sender unit 32 is that enabling signal is sent to the electronic device of user, with remind and indicate user into
Row launches the work of enrichment material.In another embodiment, enabling signal can be sent to automatically by sender unit 32
The sampler 1 of change, and at the fixed point that enrichment material is then thrown in rivers and creeks by sampler 1 automatically or sampler 1 draws
It leads stream current and flows through enrichment material.
As described above, by the setting of prior-warning device 3, more efficiently can judge to carry out fluid sample with enrichment material
The time point of sampling, to obtain optimal monitoring effect.
In addition the embodiment of the present invention provides a kind of system for measuring contained element in fluid.Please equally used refering to Fig. 2
Sampler 1, detection device 2 and prior-warning device 3 are included in the system for measuring contained element in fluid.Sampler 1 includes
Enrichment material, sampler 1 is activated so that fluid sample flows through enrichment material, so that the test substance of fluid sample is received
Collection is in enrichment material.
Such as the preceding method for being directed to measure contained element in fluid, fluid sample is gaseous sample or fluid sample.
For example, the exhaust gas that gaseous sample can be air or factory is discharged, and fluid sample can be ocean, rivers and creeks or lake
The current of natural water bodies, the water of reservoir, the waste water technique current (such as electroplate liquid) of factory or the beverages such as pool etc..Such as
Before, the species system not subject to the limits of fluid sample.Similarly, the species in relation to test substance and enrichment material, also as previous
For for measuring the method for contained element in fluid, do not describe again herein.
Detection device 2 includes portable X-ray fluorescence analyzer, and detection device 2 passes through portable X-ray fluorescence analyzer
Directly enrichment material is measured, to obtain measurement result.Measurement result include test substance element composition and it is to be measured
At least one of content of the substance in enrichment material.
In addition, the system for being used to measure contained element in fluid that the embodiment of the present invention is provided also includes prior-warning device 3.
As shown in Fig. 2, prior-warning device 3 include to obtain start start sampler 1 enabling signal sensor 31 and to
Enabling signal is sent to the sender unit 32 of sampler 1.Sensor 31 is to be selected to be passed by ph value sensor, temperature
The group that sensor, flow sensor, conductivity sensor and combinations thereof are formed.
For the embodiment of the present invention provided for the system that measures contained element in fluid, wherein each device, component
Details all as being previously directed to for the method that measures contained element in fluid, then this no longer narration in detail.
Next, by by specific embodiment come illustrate the present invention actual operation in a manner of.Specific examples below is only to lift
Example, the present invention are not restricted to this.
First specific embodiment
It is provided by the present invention can be monitoring the water in rivers and creeks for measuring the method and system of contained element in fluid
Matter.For example, the phenomenon that effluent is into rivers and creeks is stolen for factory, method and system provided by the present invention can pass through richness
Collect material to collect and concentrate the heavy metal ion in rivers and creeks, to achieve the purpose that monitor rivers and creeks water quality in real time.In addition,
More coordinate the use of prior-warning device 3 in one specific embodiment, to know time point or place that rivers and creeks water quality changes, use
Whether stealing the generation of effluent behavior with interpretation and position occurs, and sentence read result is coordinated to be sampled.It thus, can
More precisely and rapidly to monitor rivers and creeks water quality condition, achieve the effect that ban illegal waste discharge to the manufacturer in rivers and creeks.
It is to use cation exchange resin as enrichment material, to measure stream current in the first specific embodiment
In heavy metal cation.For example, cation exchange resin is with polystyrene-benzene divinyl (polystyrene-
Divinylbenzene the resin based on), and can be divided into strongly acidic cation-exchange (surface with sulfonic acid group (-
SO3H)), (surface carries phosphoric acid (- PO to middle strongly acidic cation-exchange3H2), hypophosphorous acid group (- PO2H2)) and weak acid
Type cation exchange resin (surface is with carbonic acid or hydroxyl group).In this embodiment, it is to select strong-acid type cation
Exchanger resin is as enrichment material.
Heavy metal cation in stream current can include aluminium (Al), arsenic (As), selenium (Se), antimony (Sb), barium (Ba), beryllium
(Be), cadmium (Cd), chromium (Cr), cobalt (Co), copper (Cu), lead (Pb), nickel (Ni), silver-colored (Ag), thallium (Tl), mercury (Hg), vanadium (V), zinc
(Zn), iron (Fe), manganese (Mn), molybdenum (Mo), thorium (Th), gallium (Ga), indium (In), platinum (Pt), germanium (Ge), zirconium (Zr) and uranium (U).
Cation exchange resin can be loaded in filling baggy fabric (such as mesh bag) or other packaging materials, and is put into pre-monitoring
Rivers and creeks among at fixed point.In one embodiment, it is by by cation exchange resin, filling baggy fabric and supporting rack institute structure
Into sampler 1 come achieve the effect that collect stream current in heavy metal cation.Specifically, by cation exchange
After resin is packed into filling baggy fabric, filling baggy fabric can be fixed on a supporting rack.Therefore, this sampler 1 is being invested in rivers and creeks
When interior, supporting rack may insure to be filled with the position of the filling baggy fabric of cation exchange resin, without when the flowing of stream current
Displacement.
By the flowing of water in rivers and creeks, the fluid sample (river water) containing test substance (i.e. heavy metal cation) can pass through
The cation exchange resin being loaded in filling baggy fabric, and be collected in cation exchange resin.Pass through cation exchange resin
It is well known in the art to collect the chemical reaction mechanism of heavy metal cation, is not described in detail herein.
In heavy metal cation by cation exchange resin and when being collected, the solvent (i.e. water) of fluid sample and other
The substance that will not be adsorbed in via ion exchange on cation exchange resin then will not be collected by enrichment material.Therefore, exist
When being subsequently detected and analyze using detection device 2, the background value caused by other substances and interference can be greatly reduced
Signal.
From the above, enrichment material is invested among rivers and creeks at fixed point up to predetermined time (for example, several minutes, state
Hour or a few days) after, the enrichment material that collection has test substance is taken out, by simple pre-treatment, for example, utilizing decompression
Method sloughs remaining water, can there is the enrichment of test substance to collection using portable X-ray fluorescence analyzer in real time and directly
Material is detected.It, can be quick by carrying out the setting of calibration curve and Elemental analysis data to x-ray fluorescence analyzer in advance
The species and content of knowing test substance in fluid sample.
Second specific embodiment
What the embodiment of the present invention was provided can be monitoring electricity for measuring the method and system of contained element in fluid
Plate the concentration of electroplate liquid in the electroplating bath of factory.Specifically, in galvanizing process is carried out, metal ion in electroplate liquid can be with
Manufacturing process is carried out and is consumed, therefore the concentration of electroplate liquid can reduce.
By using the enrichment material of the embodiment of the present invention, each metal ion species in electroplate liquid can be collected with
And concentration, to carry out qualitative and quantitative analysis.In addition.It, more can be with institute in effective monitoring electroplate liquid by setting early warning system
Variation containing element.
In the second specific embodiment, electroplating bath is equipped with an automation sampling system.It automates sampling system and includes control
Device processed, the electroplate liquid efferent duct and detection container for being electrically connected to controller.Detection container includes multiple detection buckets, Mei Gejian
It surveys in bucket and is provided with enrichment material.In this embodiment, detection container includes 12 detection buckets.
The detection program of second specific embodiment can carry out while plating manufacturing process is carried out.When detection starts,
Electroplate liquid in electroplating bath is directed in detection container by controller control electroplate liquid efferent duct under being selected in the set time.It is specific and
Quantitative electroplate liquid is directed to when small in different detection buckets by speech, controller control electroplate liquid efferent duct every 1.In manufacturing process
Carry out 12 it is small when after, 12 detection buckets are all filled with quantitative electroplate liquid.At this point it is possible to utilize portable type x-ray fluorescence analyzer
Chemical analysis is carried out to the enrichment material in 12 detection buckets respectively, to obtain under different time points electroplate liquid group in electroplating bath
Into and concentration variation relation.
3rd specific embodiment
In the 3rd specific embodiment, the embodiment of the present invention provided for measure in fluid the method for contained element and
System is the anion measured in fluid sample.Specifically, sulfate, sulphite, arsenate, arsenite or phosphorus
Hydrochlorate can be collected and concentrated via anion exchange resin (i.e. enrichment material), then at sampling scene i.e. by portable type X
Ray fluorescence analysis instrument detects.Fluid sample can be the discharge water or all in natural water body of factory or laboratory process flow
Such as the water in river, reservoir or seawater.
4th specific embodiment
In the 4th specific embodiment, the embodiment of the present invention provided for measure in fluid the method for contained element and
System is the hydrogen sulfide or sulfur dioxide measured in air.In other words, in this embodiment, fluid sample is
Air, and test substance is hydrogen sulfide or sulfur dioxide.Sulfur-containing compound can be by alkaline filter material or limy
Activated carbon is collected, and collecting has the alkaline filter material of sulfur-containing compound and activated carbon that can be penetrated by the Portable X after programming
Line fluorescence analyser is detected and analyzes.
It is worth noting that, for hydrogen sulfide, sulfur dioxide or sulphate cpd, the detectable limit of the prior art compared with
It is high, i.e. low content, the sulfur-containing compound of low concentration are relatively difficult to the prior art and are detected.But since the present invention is to pass through richness
Collection material (alkaline filter material or activated carbon) achievees the effect that the concentration of test substance (sulfur-containing compound), enrichment, can be with
Overcome the limitation of the detectable limit of existing instrument.It in other words, can will be to be measured in fluid sample by using enrichment material
Substance is accumulated, then the content of the test substance in original unit's fluid sample is pushed back by calculating.
5th specific embodiment
In the 5th specific embodiment, the embodiment of the present invention provided for measure in fluid the method for contained element and
System is to measure phosphate additive in fruit juice.
For test substance, the 5th specific embodiment of the invention is to be come using anion exchange resin as enrichment material
Achieve the effect that selective absorption test substance.
Similarly, the enrichment material that collecting has test substance is detected and is divided with portable X-ray fluorescence analyzer
Analysis.
6th specific embodiment
In the 6th specific embodiment, the embodiment of the present invention provided for measure in fluid the method for contained element and
System is organic mercury, organo-arsenic and other organo-metallic compounds measured in technological process (process stream).
For test substance, the 6th specific embodiment of the invention is as enrichment material using activated carbon.Afterwards, collection has
The enrichment material of test substance is detected and is analyzed with portable X-ray fluorescence analyzer.
The advantageous effect of embodiment
The beneficial effects of the present invention are provided by the present invention to be used to measure the method for contained element in fluid and be
System, can be dense to reach by the technical characteristic of " use of enrichment material and the detection for portable X-ray fluorescence analyzer of arranging in pairs or groups "
Contracting and the test substance in enriched fluid sample and in real time (real-time) and (on-site) is detected and analyzes on the spot
Effect.
In other words, it is different from the prior art and directly extracts fluid sample and is detected and analyzes to laboratory, the present invention
It is to select specific enrichment material for species and the characteristic of test substance, to collect simultaneously concentrating streams sample by enrichment material
Test substance in product, then enrichment material is measured in real time and directly by portable X-ray fluorescence analyzer, it is quick to reach
The target of the contained element of detection and effective monitoring fluid sample.Thus, except monitoring fluid sample can be significantly improved
Contained element efficiency, can with significant reduce testing cost.
Content disclosed above is only the preferred possible embodiments of the present invention, and the right for not thereby limiting to the present invention will
The protection domain asked, therefore all equivalence techniques variations done with description of the invention and accompanying drawing content, are both contained in the present invention
Scope of the claims in.
Claims (10)
- A kind of 1. method for measuring contained element in fluid, which is characterized in that the method comprises the steps of：(a) make a fluid sample flow through an enrichment material so that a test substance of the fluid sample be collected in it is described In enrichment material；And(b) enrichment material for directly having the test substance to collection using a portable X-ray fluorescence analyzer carries out It measures, to obtain a measurement result, wherein, the measurement result includes the element composition of the test substance and the enrichment At least one of two kinds of the content of the test substance collected by material.
- 2. the method according to claim 1 for measuring contained element in fluid, which is characterized in that the enrichment material It is to be selected to be made of ion exchange resin, granular or powder type activated carbon, alkaline filter material and its mixture Group.
- 3. the method according to claim 1 for measuring contained element in fluid, which is characterized in that the test substance It is selected from the group being made of simple substance, anion, cation, compound and its mixture.
- 4. the method according to claim 1 for measuring contained element in fluid, which is characterized in that in the step (a) before, further comprise：By a prior-warning device to determine to perform the time point of the step (a).
- 5. the method according to claim 4 for measuring contained element in fluid, which is characterized in that the prior-warning device Comprising at least one to obtain the sensor of an enabling signal and one to export the sender unit of the enabling signal, and The sensor is to be selected to be passed by ph value sensor, temperature sensor, pressure sensor, flow sensor and conductivity The group that sensor and combinations thereof is formed.
- 6. a kind of system for measuring contained element in fluid, which is characterized in that the system includes：One sampler, it includes an enrichment material, wherein, a fluid sample is by the startup of the sampler to flow through Enrichment material is stated, so that a test substance of the fluid sample is collected in the enrichment material；AndOne detection device, it includes a portable X-ray fluorescence analyzer, the detection device passes through the Portable X-ray Fluorescence analyser is directly measured the enrichment material, to obtain a measurement result, wherein, the measurement result includes institute State at least one of the content of the element composition and the test substance of test substance in the enrichment material.
- 7. the system according to claim 6 for measuring contained element in fluid, which is characterized in that the enrichment material It is to be selected to be made of ion exchange resin, granular or powder type activated carbon, alkaline filter material and its mixture Group.
- 8. the system according to claim 6 for measuring contained element in fluid, which is characterized in that for measuring fluid In the system of contained element further comprise a prior-warning device, described in the prior-warning device is included to obtain and started at the beginning The sensor of the enabling signal of sampler and one to the enabling signal is sent to the signal of the sampler hair Device is sent, the sensor is selected from by ph value sensor, temperature sensor, pressure sensor, flow sensor, conductivity The group that sensor and combinations thereof is formed.
- 9. the system according to claim 8 for measuring contained element in fluid, which is characterized in that the fluid sample For an electroplate liquid, the test substance for metal ion and metallic compound at least one of, and the prior-warning device At least one of comprising ph value sensor and conductivity sensor.
- 10. the system according to claim 8 for measuring contained element in fluid, which is characterized in that the fluid-like Product are an admixture of gas, and the test substance is an at least nonmetallic compound, and the enrichment material is activated carbon and alkali At least one of property filtering material.
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