CN109142018A - A kind of method of the quick measurement containing rhodium content in rhodium material - Google Patents
A kind of method of the quick measurement containing rhodium content in rhodium material Download PDFInfo
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- CN109142018A CN109142018A CN201810765344.XA CN201810765344A CN109142018A CN 109142018 A CN109142018 A CN 109142018A CN 201810765344 A CN201810765344 A CN 201810765344A CN 109142018 A CN109142018 A CN 109142018A
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Abstract
The present invention provides a kind of quickly method of the measurement containing rhodium content in rhodium material, the following steps are included: by after tentatively the crushing and grind containing rhodium material of embrittlement processing, activated metal is added, is put into porcelain crucible after mixing evenly, then covers sodium chloride on surface, it is cooled to room temperature after roasting, it is transferred in beaker, chloroazotic acid is slowly added in beaker, after heating for dissolving, it is cooled to room temperature, obtains rhodium-containing liquid；By rhodium-containing liquid after being filtered, washed, filtrate constant volume obtains the content containing rhodium in rhodium material according to formula rhodium-containing liquid volume V × rhodium concentration C/M*1000 containing rhodium material with the concentration of rhodium in ICP inductive coupling plasma emission spectrograph analysis rhodium-containing liquid.The present invention forms alloy by that will contain rhodium material and zinc activated metal powder, after directly being dissolved with chloroazotic acid, it is obtained using ICP inductive coupling plasma emission spectrograph measure and calculation containing rhodium content in rhodium material, preparation method is simple, controllability is strong, interference is few, measures precise and high efficiency, sensitivity and favorable reproducibility.
Description
Technical field
The invention belongs to rhodium determination techniques fields, and in particular to a method of quickly measurement is containing rhodium content in rhodium material.
Background technique
Rhodium element belongs to platinum group, and yield is very rare, only takes up an area mass fraction in shell
0.0000000001%, rhodium material is from a wealth of sources, and broad categories mostly exist with alloy form, and the performance of rhodium is very excellent, has
Stable resistance and good conductive, thermally conductive, acid-alkali-corrosive-resisting, high-temperature oxidation resistance and high catalytic activity, automotive electronics,
The fields such as aerospace, medical and health are all widely used.
Rhodium has chemical inertness, and the solubility in chloroazotic acid is extremely low, is that measurement, recycling, separation and the purifying technique of rhodium increase
Difficulty is added.The dissolving method of rhodium mainly has medium temperature chlorinating dissolution method, hot pressing dissolution method, electrochemical solution, microwave to disappear at present
Solution, alloy activation dissolution method and sodium bisulfate/potassium-diluted acid dissolution method etc., wherein the application of alloy activation dissolution method is more wide
It is general.Alloy activation dissolution is to melt the metals such as aluminium, iron, zinc, tin and noble metal at high temperature to form alloy or intermetallic
Object removes base metal with diluted acid, then obtains precious metal solution with strong oxidizing property acid dissolution, then by analysis method or extract work
Skill is measured precious metal solution or purifies.
The disclosed method that Purification of Platinum rhodium is recycled from the waste material of platiniferous rhodium of Chinese patent CN 101260469A, by platinum rhodium
After waste material carries out pulverization process, with zinc powder Hybrid Heating, chloroazotic acid is added in the congruent melting at 800 DEG C after cooling, heating is boiled to complete
It melts, after small fire is evaporated solution, concentrated hydrochloric acid dissolution is added, is evaporated again, continuous 3 times, until catching up with nitre complete, after obtaining pre-treatment
Solution, then will in the solution after pre-treatment be added sodium hydroxide solution adjust pH value to 1.5-3.5, be handed over through strong acidic ion
Resin column is changed, the base metal in solution is removed, the solution for removing base metal is subjected to three-level extraction with tributyl phosphate, is contained
There is the pure extraction raffinate of rhodium, sodium hypochlorite/hydrogen peroxide oxidant will finally be added in the pure extraction raffinate containing rhodium, heated oxide removes iridium,
Processing is further purified through extration resin again, obtains pure rhodium liquid, formic acid/hydrazine hydrate finally is added also into pure rhodium liquid
Former agent, heating reduction, forms rhodium black, adds hydrogen heating reduction, obtains pure rhodium powder.One disclosed in Chinese patent 106011495A
The melting method of kind rhodium powder, after rhodium powder is mixed with metal powder, ball-milling treatment carries out mechanical activation, is then dissolved out using hydrochloric acid
Base metal obtains rhodium material after separation of solid and liquid, then rhodium material is placed in ultrasonic wave, melts, obtains through chloroazotic acid at 80-90 DEG C
To rhodium liquid.By above-mentioned in the prior art it is found that the crystallization of rhodium can be reduced by handling rhodium powder and activated metal powder metallurgyization
Degree and intermolecular combination energy, enhance the reactivity of rhodium, improve by the rate of acid leach solution, but will close at present
Golden activation method is for inductive coupling plasma emission spectrograph measurement rhodium content using actually rare.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of quickly method of the measurement containing rhodium content in rhodium material, pass through by
Alloy is formed containing rhodium material and zinc activated metal powder, after directly being dissolved with chloroazotic acid, is emitted using ICP inductively coupled plasma body
Spectrometer measure and calculation is obtained containing rhodium content in rhodium material, and preparation method is simple, and controllability is strong, and interference is few, is measured accurate high
Effect, sensitivity and favorable reproducibility.
In order to solve the above technical problems, the technical scheme is that
A kind of method of the quick measurement containing rhodium content in rhodium material, it is characterised in that: the following steps are included:
(1) rhodium material will be contained and carry out brittle processing, obtain embrittlement processing contains rhodium material；
(2) tentatively crushing containing rhodium material by the embrittlement processing of step (1) preparation, after the grinding of the grinder of 200 mesh, according to work
Property metal powder and the weight ratio containing rhodium material be 2-4:1, be added 150 mesh active metal powder, stirred evenly with glass bar
After be put into porcelain crucible, then surface cover one layer of sodium chloride, at 600-700 DEG C roast 2-3h after be cooled to room temperature, obtain
Contain rhodium material after roasting；
(3) by being added in beaker containing rhodium material after the roasting of step (2) preparation, chloroazotic acid is slowly added in beaker, is heated molten
Xie Hou is cooled to room temperature, and obtains rhodium-containing liquid；
(4) by the rhodium-containing liquid of step (3) preparation after being filtered, washed, filtrate constant volume is sent out with ICP inductively coupled plasma body
The concentration for penetrating rhodium in spectrometer analysis rhodium-containing liquid, according to formula rhodium-containing liquid volume V × rhodium concentration C/M* containing rhodium material
1000 obtain the content containing rhodium in rhodium material.
As a preferred embodiment of the above technical solution, in the step (1), the technique of embrittlement processing are as follows: will contain rhodium material 0 ~-
120 DEG C are low-temperature grinding 5-15min under 0.02-0.1MPa with pressure.
As a preferred embodiment of the above technical solution, in the step (1), the technique of embrittlement processing are as follows: rhodium material will be contained from room
Temperature drop pre-processes 2-10min to 0 ~ -5 DEG C at pressure 0.02-0.04MPa, be then cooled to the rate of 5-10 DEG C/min -
40 ~ -80 DEG C, 2-4min is pre-processed at pressure 0.03-0.05MPa, finally -60 are cooled to the rate of 10-13 DEG C/min ~ -
120 DEG C, 1-11min is pre-processed at pressure 0.08-0.1MPa.
As a preferred embodiment of the above technical solution, in the step (2), active metal powder is zinc powder, aluminium powder or glass putty
One of or it is several, active metal powder and embrittlement processing the weight ratio containing rhodium material be 3:1.
As a preferred embodiment of the above technical solution, in the step (2), cover one layer of sodium chloride with a thickness of 1-2mm, chlorination
Sodium is the sodium chloride powder that purity is 99.5%.
As a preferred embodiment of the above technical solution, in the step (2), the temperature of roasting is 650 DEG C, time 2h.
As a preferred embodiment of the above technical solution, in the step (3), chloroazotic acid include volume ratio be 1:3 31% hydrochloric acid and
65% nitric acid, chloroazotic acid and material ratio containing rhodium material are 8-10L:1kg.
As a preferred embodiment of the above technical solution, in the step (3), the rate being slowly added to is 5-20mL/min, heating
Temperature be 60 DEG C, time 15min.
As a preferred embodiment of the above technical solution, in the step (3), the technique of washing are as follows: solvent is pure water, pH value 6-
7, it washs 2-3 times.
As a preferred embodiment of the above technical solution, in the step (3), in ICP inductive coupling plasma emission spectrograph
The concentration of rhodium standard reserving solution is 1mg/mL, location parameter are as follows: wavelength 343.489nm.
Compared with prior art, the invention has the following advantages:
(1) quick method of the measurement containing rhodium content in rhodium material of the invention is that brittle pretreatment is carried out by the material to rhodium-containing
Being handled respectively by low temperature declines the binding force between the component in the material of rhodium-containing, crystallinity decline, reduces preliminary crisp
The difficulty for changing processing and grinding, the powder after making grinding is finer and smoother, the abundant alloy of activated metal after being more advantageous to, to mention
The rate of dissolution and dissolution rate of high chloroazotic acid then ensure that the stability and repeatability of measuring method.
(2) quick method of the measurement containing rhodium content in rhodium material of the invention is by the way that activated metal is added, and sodium chloride is close
Envelope, prevents during heating, and activated metal and rhodium absorb the dioxygen oxidation in air, influences the content of rhodium measurement, then
Through high-temperature fusion, so that activated metal and rhodium is formed alloy, improve solubility of the rhodium in chloroazotic acid, avoid and use other solvents
Or technique, process flow is simplified, and after directly dissolving alloy with chloroazotic acid, is directly sent out using ICP inductively coupled plasma body
The concentration of rhodium in spectrometer analysis rhodium-containing liquid is penetrated, so that the content containing rhodium in rhodium material be calculated.
(3) preparation method of the invention is compared with rhodium solution prepared by traditional hydrochloric acid/sulfuric acid and peroxide, in solution
Rhodium content stablize, rhodium-containing liquid washs through pure water, distilled water and sterile water in batches respectively, and content is pure, hardly by artificial
The influence of factor is not also influenced by the noble metals such as other palladiums in material, ensure that the accurate fixed of measurement, and by metal activation with
ICP inductive coupling plasma emission spectrograph combines, and preparation method is simple and efficient, and ICP inductively coupled plasma body is sent out
It penetrates before spectrometer measurement, with pure water, the rhodium-containing liquid in impurity is sufficiently filtered into liquid, reduce mistake,
Cause content relatively low, therefore good via the stability of the rhodium content of ICP inductive coupling plasma emission spectrograph measurement, speed
Fastly, controllability is strong, and the interference by human factor and external environment is few, and measurement is sensitive containing rhodium content precise and high efficiency in rhodium material
Property and favorable reproducibility.
Specific embodiment
Below in conjunction with specific embodiment, the present invention will be described in detail, herein illustrative examples and explanation of the invention
For explaining the present invention, but it is not as a limitation of the invention.
Embodiment 1:
(1) rhodium material will be contained and is down to 0 DEG C from room temperature, 2min is pre-processed at pressure 0.02MPa, then with the rate of 5 DEG C/min
- 40 DEG C are cooled to, 2min is pre-processed at pressure 0.03MPa, finally -60 DEG C are cooled to the rate of 10 DEG C/min, in pressure
1min is pre-processed under 0.08MPa.
By tentatively crushing containing rhodium material for embrittlement processing, after the grinding of the grinder of 200 mesh, according to zinc powder and contain rhodium material
Weight ratio be 2:1, be added 150 mesh zinc powder, be put into porcelain crucible after mixing evenly with glass bar, then surface cover one layer
With a thickness of 99.5% sodium chloride powder of 1mm, it is cooled to room temperature after roasting 2h at 600 DEG C, the rhodium-containing object after being roasted
Material.
It (2) is 8L:1kg according to chloroazotic acid and material ratio containing rhodium material, by body by being added in beaker containing rhodium material after roasting
The chloroazotic acid that 31% hydrochloric acid and 65% nitric acid that product ratio is 1:3 are constituted under 5mL/min rate to be slowly added in beaker, at 60 DEG C
After dissolving by heating 15min, it is cooled to room temperature, obtains rhodium-containing liquid.
(3) by rhodium-containing liquid through filtering, with pure water 2 times that pH value is 6.4, filtrate constant volume, with ICP inductive coupling etc.
Ionomer emission spectrum instrument analyzes the concentration of rhodium in rhodium-containing liquid, test parameter are as follows: wavelength 343.489nm, finally according to public affairs
Formula rhodium-containing liquid volume V × rhodium concentration C/M*1000 containing rhodium material obtains the content containing rhodium in rhodium material.
Embodiment 2:
(1) rhodium material will be contained and is down to -5 DEG C from room temperature, 10min is pre-processed at pressure -0.04MPa, then with 10 DEG C/min's
Rate is cooled to -80 DEG C, and 4min is pre-processed at pressure 0.05MPa, is finally cooled to -120 DEG C with the rate of 13 DEG C/min,
1min is pre-processed under pressure 0.1MPa.
By tentatively crushing containing rhodium material for embrittlement processing, after the grinding of the grinder of 200 mesh, according to zinc powder and contain rhodium material
Weight ratio be 4:1, be added 150 mesh zinc powder, be put into porcelain crucible after mixing evenly with glass bar, then surface cover one layer
With a thickness of 99.5% sodium chloride powder of 2mm, it is cooled to room temperature after roasting 3h at 700 DEG C, the rhodium-containing object after being roasted
Material.
It (2) is 10L:1kg according to chloroazotic acid and material ratio containing rhodium material by being added in beaker containing rhodium material after roasting, it will
The chloroazotic acid that 31% hydrochloric acid and 65% nitric acid that volume ratio is 1:3 are constituted under 20mL/min rate to be slowly added in beaker, 60
After dissolving by heating 15min at DEG C, it is cooled to room temperature, obtains rhodium-containing liquid.
(3) by rhodium-containing liquid through filtering, with pure water 3 times that pH value is 6.9, filtrate constant volume, with ICP inductive coupling etc.
Ionomer emission spectrum instrument analyzes the concentration of rhodium in rhodium-containing liquid, test parameter are as follows: wavelength 343.489nm, finally according to public affairs
Formula rhodium-containing liquid volume V × rhodium concentration C/M*1000 containing rhodium material obtains the content containing rhodium in rhodium material.
Embodiment 3:
(1) rhodium material will be contained and is down to -2 DEG C from room temperature, 8min is pre-processed at pressure 0.03MPa, then with the rate of 7 DEG C/min
- 60 DEG C are cooled to, 4min is pre-processed at pressure 0.04MPa, finally -100 DEG C are cooled to the rate of 12 DEG C/min, in pressure
2min is pre-processed under 0.09MPa.
By tentatively crushing containing rhodium material for embrittlement processing, after the grinding of the grinder of 200 mesh, according to zinc powder and contain rhodium material
Weight ratio be 3:1, be added 150 mesh zinc powder, be put into porcelain crucible after mixing evenly with glass bar, then surface cover one layer
With a thickness of 99.5% sodium chloride powder of 1.5mm, it is cooled to room temperature after roasting 2.5h at 650 DEG C, the rhodium-containing after being roasted
Material.
It (2) is 9L:1kg according to chloroazotic acid and material ratio containing rhodium material, by body by being added in beaker containing rhodium material after roasting
The chloroazotic acid that 31% hydrochloric acid and 65% nitric acid that product ratio is 1:3 are constituted under 10mL/min rate to be slowly added in beaker, at 60 DEG C
After lower heating for dissolving 15min, it is cooled to room temperature, obtains rhodium-containing liquid.
(3) by rhodium-containing liquid through filtering, with pure water 3 times that pH value is 6.5, filtrate constant volume, with ICP inductive coupling etc.
Ionomer emission spectrum instrument analyzes the concentration of rhodium in rhodium-containing liquid, test parameter are as follows: wavelength 343.489nm, finally according to public affairs
Formula rhodium-containing liquid volume V × rhodium concentration C/M*1000 containing rhodium material obtains the content containing rhodium in rhodium material.
Embodiment 4:
(1) rhodium material will be contained and is down to 0 DEG C from room temperature, 2min is pre-processed at pressure 0.04MPa, then with the rate of 10 DEG C/min
- 40 DEG C are cooled to, 2min is pre-processed at pressure 0.05MPa, finally -60 DEG C are cooled to the rate of 13 DEG C/min, in pressure
1min is pre-processed under 0.1MPa.
By tentatively crushing containing rhodium material for embrittlement processing, after the grinding of the grinder of 200 mesh, according to zinc powder and contain rhodium material
Weight ratio be 2.5:1, be added 150 mesh zinc powder and glass putty, be put into porcelain crucible after mixing evenly with glass bar, then on surface
99.5% sodium chloride powder that a layer thickness is 1.6mm is covered, is cooled to room temperature after roasting 2h at 630 DEG C, after obtaining roasting
Contain rhodium material.
It (2) is 8.5L:1kg according to chloroazotic acid and material ratio containing rhodium material by being added in beaker containing rhodium material after roasting, it will
The chloroazotic acid that 31% hydrochloric acid and 65% nitric acid that volume ratio is 1:3 are constituted under 15mL/min rate to be slowly added in beaker, 60
After dissolving by heating 15min at DEG C, it is cooled to room temperature, obtains rhodium-containing liquid.
(3) by rhodium-containing liquid through filtering, with pure water 2 times that pH value is 6.3, filtrate constant volume, with ICP inductive coupling etc.
Ionomer emission spectrum instrument analyzes the concentration of rhodium in rhodium-containing liquid, test parameter are as follows: wavelength 343.489nm, finally according to public affairs
Formula rhodium-containing liquid volume V × rhodium concentration C/M*1000 containing rhodium material obtains the content containing rhodium in rhodium material.
Embodiment 5:
(1) rhodium material will be contained and is down to -5 DEG C from room temperature, 10min is pre-processed at pressure 0.02MPa, then with the speed of 5 DEG C/min
Rate is cooled to -80 DEG C, and 4min is pre-processed at pressure 0.03MPa, is finally cooled to -120 DEG C with the rate of 10 DEG C/min, is pressing
1min is pre-processed under power 0.08MPa.
By tentatively crushing containing rhodium material for embrittlement processing, after the grinding of the grinder of 200 mesh, according to zinc powder and contain rhodium material
Weight ratio be 3.5:1, be added 150 mesh zinc powder, be put into porcelain crucible after mixing evenly with glass bar, then surface cover one
Layer is cooled to room temperature, the rhodium-containing after being roasted with a thickness of 99.5% sodium chloride powder of 1.8mm after roasting 3h at 690 DEG C
Material.
It (2) is 9.5L:1kg according to chloroazotic acid and material ratio containing rhodium material by being added in beaker containing rhodium material after roasting, it will
The chloroazotic acid that 31% hydrochloric acid and 65% nitric acid that volume ratio is 1:3 are constituted under 12mL/min rate to be slowly added in beaker, 60
After dissolving by heating 15min at DEG C, it is cooled to room temperature, obtains rhodium-containing liquid.
(3) be with pH value by rhodium-containing liquid through filtering 7 pure water for 3 times, filtrate constant volume, with ICP inductive coupling etc. from
Daughter emission spectrometer analyzes the concentration of rhodium in rhodium-containing liquid, test parameter are as follows: wavelength 343.489nm, finally according to formula
Rhodium-containing liquid volume V × rhodium concentration C/M*1000 containing rhodium material obtains the content containing rhodium in rhodium material.
Embodiment 6:
(1) rhodium material will be contained and is down to -1 DEG C from room temperature, 7min is pre-processed at pressure 0.02MPa, then with the speed of 10 DEG C/min
Rate is cooled to -40 DEG C, and 2min is pre-processed at pressure 0.05MPa, is finally cooled to -80 DEG C with the rate of 13 DEG C/min, is pressing
3min is pre-processed under power 0.09MPa.
By tentatively crushing containing rhodium material for embrittlement processing, after the grinding of the grinder of 200 mesh, according to zinc powder and contain rhodium material
Weight ratio be 3.6:1, be added 150 mesh zinc powder and aluminium powder, be put into porcelain crucible after mixing evenly with glass bar, then on surface
99.5% sodium chloride powder that a layer thickness is 1.7mm is covered, is cooled to room temperature, is roasted after roasting 2.5h at 630 DEG C
Afterwards contain rhodium material.
It (2) is 9L:1kg according to chloroazotic acid and material ratio containing rhodium material, by body by being added in beaker containing rhodium material after roasting
The chloroazotic acid that 31% hydrochloric acid and 65% nitric acid that product ratio is 1:3 are constituted under 12mL/min rate to be slowly added in beaker, at 60 DEG C
After lower heating for dissolving 15min, it is cooled to room temperature, obtains rhodium-containing liquid.
(3) be with pH value by rhodium-containing liquid through filtering 6 pure water for 2 times, filtrate constant volume, with ICP inductive coupling etc. from
Daughter emission spectrometer analyzes the concentration of rhodium in rhodium-containing liquid, test parameter are as follows: wavelength 343.489nm, finally according to formula
Rhodium-containing liquid volume V × rhodium concentration C/M*1000 containing rhodium material obtains the content containing rhodium in rhodium material.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology all without departing from the spirit and scope of the present invention, carries out modifications and changes to above-described embodiment.Cause
This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as
At all equivalent modifications or change, should be covered by the claims of the present invention.
Claims (10)
1. a kind of quickly method of the measurement containing rhodium content in rhodium material, it is characterised in that: the following steps are included:
(1) rhodium material will be contained and carry out brittle processing, obtain embrittlement processing contains rhodium material；
(2) tentatively crushing containing rhodium material by the embrittlement processing of step (1) preparation, after the grinding of the grinder of 200 mesh, according to work
Property metal powder and the weight ratio containing rhodium material be 2-4:1, be added 150 mesh active metal powder, stirred evenly with glass bar
After be put into porcelain crucible, then surface cover one layer of sodium chloride, at 600-700 DEG C roast 2-3h after be cooled to room temperature, obtain
Contain rhodium material after roasting；
(3) by being added in beaker containing rhodium material after the roasting of step (2) preparation, chloroazotic acid is slowly added in beaker, is heated molten
Xie Hou is cooled to room temperature, and obtains rhodium-containing liquid；
(4) by the rhodium-containing liquid of step (3) preparation after being filtered, washed, filtrate constant volume is sent out with ICP inductively coupled plasma body
The concentration for penetrating rhodium in spectrometer analysis rhodium-containing liquid, according to formula rhodium-containing liquid volume V × rhodium concentration C/M* containing rhodium material
1000 obtain the content containing rhodium in rhodium material.
2. a kind of quickly method of the measurement containing rhodium content in rhodium material according to claim 1, it is characterised in that: the step
Suddenly in (1), the technique of embrittlement processing are as follows: low-temperature grinding 5- under rhodium material is 0.02-0.1MPa in 0 ~ -120 DEG C and pressure will be contained
15min。
3. a kind of quickly method of the measurement containing rhodium content in rhodium material according to claim 2, it is characterised in that: the step
Suddenly in (1), the technique of embrittlement processing are as follows: rhodium material will be contained from room temperature and be down to 0 ~ -5 DEG C, located in advance at pressure 0.02-0.04MPa
2-10min is managed, then -40 ~ -80 DEG C is cooled to the rate of 5-10 DEG C/min, pre-processes 2- at pressure 0.03-0.05MPa
4min is finally cooled to -60 ~ -120 DEG C with the rate of 10-13 DEG C/min, pre-processes 1- at pressure 0.08-0.1MPa
11min。
4. a kind of quickly method of the measurement containing rhodium content in rhodium material according to claim 1, it is characterised in that: the step
Suddenly in (2), active metal powder is one of zinc powder, aluminium powder or glass putty or several, at active metal powder and embrittlement
The weight ratio containing rhodium material of reason is 3:1.
5. a kind of quickly method of the measurement containing rhodium content in rhodium material according to claim 1, it is characterised in that: the step
Suddenly in (2), cover one layer of sodium chloride with a thickness of 1-2mm, sodium chloride is the sodium chloride powder that purity is 99.5%.
6. a kind of quickly method of the measurement containing rhodium content in rhodium material according to claim 1, it is characterised in that: the step
Suddenly in (2), the temperature of roasting is 650 DEG C, time 2h.
7. a kind of quickly method of the measurement containing rhodium content in rhodium material according to claim 1, it is characterised in that: the step
Suddenly in (3), chloroazotic acid includes 31% hydrochloric acid and 65% nitric acid that volume ratio is 1:3, and chloroazotic acid and material ratio containing rhodium material are 8-10L:
1kg。
8. a kind of quickly method of the measurement containing rhodium content in rhodium material according to claim 1, it is characterised in that: the step
Suddenly in (3), the rate being slowly added to is 5-20mL/min, and the temperature of heating is 60 DEG C, time 15min.
9. a kind of quickly method of the measurement containing rhodium content in rhodium material according to claim 1, it is characterised in that: the step
Suddenly in (4), the technique of washing are as follows: solvent is pure water, and pH value 6-7 is washed 2-3 times.
10. a kind of quickly method of the measurement containing rhodium content in rhodium material according to claim 1, it is characterised in that: described
In step (4), the concentration of rhodium standard reserving solution is 1mg/mL, location parameter in ICP inductive coupling plasma emission spectrograph
Are as follows: wavelength 343.489nm.
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| CN201810765344.XA CN109142018A (en) | 2018-07-12 | 2018-07-12 | A kind of method of the quick measurement containing rhodium content in rhodium material |
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| CN201810765344.XA Pending CN109142018A (en) | 2018-07-12 | 2018-07-12 | A kind of method of the quick measurement containing rhodium content in rhodium material |
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| CN109884036A (en) * | 2019-03-08 | 2019-06-14 | 国家硅材料深加工产品质量监督检验中心东海研究院 | A kind of sampling method using microelement in inductive coupling plasma emission spectrograph measurement quartz |
| CN111999150A (en) * | 2020-09-16 | 2020-11-27 | 励福(江门)环保科技股份有限公司 | Method for measuring rhodium content in rhodium-ruthenium alloy |
| CN113008723A (en) * | 2021-02-03 | 2021-06-22 | 广东金正龙科技有限公司 | Method for detecting content of high-purity rhodium compound solution |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109884036A (en) * | 2019-03-08 | 2019-06-14 | 国家硅材料深加工产品质量监督检验中心东海研究院 | A kind of sampling method using microelement in inductive coupling plasma emission spectrograph measurement quartz |
| CN111999150A (en) * | 2020-09-16 | 2020-11-27 | 励福(江门)环保科技股份有限公司 | Method for measuring rhodium content in rhodium-ruthenium alloy |
| CN111999150B (en) * | 2020-09-16 | 2023-10-03 | 励福(江门)环保科技股份有限公司 | Method for measuring rhodium content in rhodium-ruthenium alloy |
| CN113008723A (en) * | 2021-02-03 | 2021-06-22 | 广东金正龙科技有限公司 | Method for detecting content of high-purity rhodium compound solution |
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