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GB/T 4325.10-2013: Methods for chemical analysis of molybdenum -- Part 10: Determination of copper content -- Flame atomic absorption spectrometry
Status: Valid GB/T 4325.10: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 4325.10-2013 | English | 169 |
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Methods for chemical analysis of molybdenum -- Part 10: Determination of copper content -- Flame atomic absorption spectrometry
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GB/T 4325.10-2013
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| GB/T 4325.10-1984 | English | 199 |
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Methods for chemical analysis of molybdenum--The neocuproin photometric method for the determination of copper content
| Obsolete |
GB/T 4325.10-1984
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Basic data | Standard ID | GB/T 4325.10-2013 (GB/T4325.10-2013) | | Description (Translated English) | Methods for chemical analysis of molybdenum -- Part 10: Determination of copper content -- Flame atomic absorption spectrometry | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H63 | | Classification of International Standard | 77.120.99 | | Word Count Estimation | 7,795 | | Older Standard (superseded by this standard) | GB/T 4325.10-1984 | | Regulation (derived from) | National Standards Bulletin 2013 No. 6 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies the amount of copper molybdenum determination. This section applies to molybdenum powder, molybdenum products, molybdenum trioxide and ammonium copper content. Measuring range: 0. 000 ~ 0. 0100% or 2%. | GB/T 4325.10-2013: Methods for chemical analysis of molybdenum -- Part 10: Determination of copper content -- Flame atomic absorption spectrometry
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Methods for chemical analysis of molybdenum Part 10.. Determination of copper content Flame atomic absorption spectrometry.
ICS 77.120.99
H63
National Standards of People's Republic of China
Replacing GB/T 4325.10-1984
Chemical analysis of molybdenum
Part 10. Determination of copper content
Flame Atomic Absorption Spectrometry
Part 10. Determinationofcoppercontent-
Issued on. 2013-05-09
2014-02-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
GB/T 4325 "chemical analysis of molybdenum" is divided into 26 parts.
--- Part 1. Determination of lead content - Graphite furnace atomic absorption spectrometry;
--- Part 2. Determination of cadmium content by flame atomic absorption spectrometry;
--- Part 3. Determination of bismuth content - atomic fluorescence spectrometry;
--- Part 4. Determination of tin content by atomic fluorescence spectrometry;
--- Part 5. Determination of antimony content - Atomic Fluorescence Spectrometry;
--- Part 6. Determination of arsenic content by atomic fluorescence spectrometry;
--- Part 7. Determination of the amount of iron phenanthroline spectrophotometry and inductively coupled plasma atomic emission spectrometry;
--- Part 8. Determination of cobalt content of cobalt reagents spectrophotometry and flame atomic absorption spectrometry;
--- Part 9. Determination of the amount of nickel dimethylglyoxime spectrophotometric method and the flame atomic absorption spectrometry;
--- Part 10. Determination of copper content - Flame atomic absorption spectrometry;
--- Part 11. Determination of aluminum content of chromium azure S spectrophotometry and inductively coupled plasma atomic emission spectrometry;
--- Part 12. silicon content - Inductively coupled plasma atomic emission spectrometry;
--- Part 13. Determination of calcium content by flame atomic absorption spectrometry;
--- Part 14. Determination of magnesium content - Flame atomic absorption spectrometry;
--- Part 15. Determination of sodium content by flame atomic absorption spectrometry;
--- Part 16. Determination of potassium content by flame atomic absorption spectrometry;
--- Part 17. Determination of titanium content of two methane antipyrine spectrophotometry and inductively coupled plasma atomic emission spectrometry;
--- Part 18. Determination of the amount of vanadium tantalum reagent spectrophotometry and inductively coupled plasma atomic emission spectrometry;
--- Part 19. Determination of chromium content of diphenyl carbon acid dihydrazide spectrophotometry;
--- Part 20. Determination of manganese content by flame atomic absorption spectrometry;
--- Part 21. Determination of the amount of carbon and sulfur content of the high-frequency combustion infrared absorption method;
--- Part 22. Determination of phosphorus content - Molybdenum blue spectrophotometric method;
--- Part 23. Determination of the oxygen and nitrogen inert gas fusion infrared absorption method - thermal conductivity method;
--- Part 24. Determination of tungsten content - Inductively coupled plasma atomic emission spectrometry;
--- Part 25. Determination of the amount of hydrogen in the inert gas fusion infrared absorption method/thermal conductivity method;
--- Part 26. aluminum, magnesium, calcium, vanadium, chromium, manganese, iron, cobalt, nickel, copper, zinc, arsenic, cadmium, tin, antimony, tungsten, lead and bismuth content - Inductively coupled
Co-Plasma Mass Spectrometry.
This section GB/T Part of 104,325.
This section drafted in accordance with GB/T 1.1-2009 given rules.
This Part replaces GB/T 4325.10-1984 "spectrophotometric determination of chemical analysis of molybdenum copper reagent new copper content." This portion
GB/T 4325.10-1984 compared to the main technical changes are as follows.
--- The "new copper reagent photometric method" to "flame atomic absorption spectrometry";
--- Measurement range is adjusted to 0.0002% - 0.0100%;
--- Increased repeatability terms;
--- Increasing the test report clause.
The non-ferrous metal part by the National Standardization Technical Committee (SAC/TC243) centralized.
This section is drafted. Jinduicheng Molybdenum Industry Co., Ltd., Northwest Nonferrous Metal Research Institute, Ganzhou Nonferrous Metallurgy Research Institute.
The main drafters of this section. Wang Feng, Xie Mingming, Yang Hongzhong, Sunbao Lian, Yang Pingping, Wang Guoliang, Zhangjiang Feng, Tao.
This part of the standard replaces the previous editions are.
--- GB/T 4325.10-1984.
Chemical analysis of molybdenum
Part 10. Determination of copper content
Flame Atomic Absorption Spectrometry
1 Scope
GB/T 4325 provisions of this part of the determination of copper content of molybdenum.
This section applies to molybdenum powder, determination of molybdenum products, molybdenum trioxide and ammonium molybdate copper content. Measurement range. 0.0002% to 0.0100%.
2 Method summary
Sample was dissolved hydrogen peroxide. In nitric acid medium by air - acetylene flame to flame atomic absorption spectrometer at a wavelength of 324.7nm
Measuring the absorbance of copper.
3 Reagents
Unless otherwise indicated, this part of water as a secondary water or water for more than two.
3.1 paramolybdate (≥99.99%).
3.2 nitric acid (ρ = 1.42g/mL), pure class distinctions.
3.3 Hydrogen peroxide (ρ = 1.10g/mL).
3.4 copper standard stock solution. Weigh 0.1000g copper (wCu≥99.99%) in 250mL beaker, covered table dish, add
30mL of nitric acid (3.2), dissolved by heating, cooling, transferred to 1000mL volumetric flask, dilute with water to volume, and mix. This solution containing 1mL
100μg copper.
3.5 Copper standard solution. Pipette 10.00mL copper standard stock solution (3.4) in 100mL volumetric flask, dilute with water to volume, and mix.
This solution 1mL containing 10μg copper.
4 Instrument
Atomic absorption spectrometry, Zeeman background correction, with copper hollow cathode lamp.
Under optimum working conditions for those who can reach the following indicators can be used.
--- Characteristic concentration. the test solution consistent with the determination of the base solution feature copper concentration should be less than 0.016μg/mL;
--- Precision. measure up to 10 times the standard solution, the absorbance of the standard deviation should not exceed the average absorbance of 1.0%; the lowest
Concentration of standard solution (not "zero" concentration of the standard) measuring the absorbance of 10 times, the standard deviation should not exceed the maximum concentration standard
The average standard solution absorbance of 0.66%;
--- Linear curve. the curve according to concentration, divided into five sections, the difference between the absorbance of the absorbance difference between the highest and the lowest segment segment
Ratio of not less than 0.8.
5 Sample
Molybdenum should smash through the 0.75mm standard sieve.
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