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GB/T 4325.4-2013: Methods for chemical analysis of molybdenum -- Part 4: Determination of tin content -- Atomic fluorescence spectrometry
Status: Valid GB/T 4325.4: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 4325.4-2013 | English | 189 |
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Methods for chemical analysis of molybdenum -- Part 4: Determination of tin content -- Atomic fluorescence spectrometry
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GB/T 4325.4-2013
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| GB/T 4325.4-1984 | English | 199 |
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Methods for chemical analysis of molybdenum--The malachite green photometric method for the determination of antimony content
| Obsolete |
GB/T 4325.4-1984
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Basic data | Standard ID | GB/T 4325.4-2013 (GB/T4325.4-2013) | | Description (Translated English) | Methods for chemical analysis of molybdenum -- Part 4: Determination of tin content -- Atomic fluorescence spectrometry | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H63 | | Classification of International Standard | 77.120.99 | | Word Count Estimation | 8,818 | | Older Standard (superseded by this standard) | GB/T 4325.3-1984 | | Regulation (derived from) | National Standards Bulletin 2013 No. 6 | | Issuing agency(ies) | General Administration of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 molybdenum in the determination of tin. This section applies to molybdenum powder, molybdenum, molybdenum trioxide, ammonium tin content. Measuring range: 0. 000 0. 005 0% 3%. | GB/T 4325.4-2013: Methods for chemical analysis of molybdenum -- Part 4: Determination of tin content -- Atomic fluorescence spectrometry
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Methods for chemical analysis of molybdenum Part 4.. Determination of tin content Atomic fluorescence spectrometry.
ICS 77.120.99
H63
National Standards of People's Republic of China
Replacing GB/T 4325.3-1984
Chemical analysis of molybdenum
Part 4. Determination of tin content
Atomic Fluorescence Spectrometry
Part 4. Determinationoftincontent-
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 44325 Part of.
This section drafted in accordance with GB/T 1.1-2009 given rules.
This Part replaces GB/T 4325.3-1984 "chemical analysis of molybdenum polyethylene glycol octyl phenyl ether - benzene Spectrophotometric determination of tin
the amount". This section compared with the GB/T 4325.3-1984, the main technical changes are as follows.
--- Polyethylene glycol octylphenyl ether - benzene Spectrophotometric to atomic fluorescence spectrometry;
--- Measurement range was adjusted to 0.0003% to 0.0050%;
--- Increased repeatability terms;
--- Increasing the test report clause.
This standard by the national non-ferrous metals Standardization Technical Committee (SAC/TC243) centralized.
This section is drafted. Jinduicheng Molybdenum Industry Co., Ltd., Guangzhou Nonferrous Metal Research Institute, Beijing General Research Institute of Mining and Metallurgy.
The main drafters of this section. Li Qiao Hong, Xie Mingming, Zhangjiang Feng, Wang Guoliang, He Xin, Wang Jin, in force.
This part of the standard replaces the previous editions are.
--- GB/T 4325.3-1984.
Chemical analysis of molybdenum
Part 4. Determination of tin content
Atomic Fluorescence Spectrometry
1 Scope
GB/T 4325 provisions of this part of the determination of molybdenum in the amount of tin.
This section applies to molybdenum powder, molybdenum, molybdenum trioxide, ammonium molybdate determination of tin content. Measurement range. 0.0003% to 0.0050%.
2 Method summary
Sample to decomposition of hydrogen peroxide in the presence of cysteine \u200b\u200bin L- tartaric acid medium, using hydride generation - atomic fluorescence spectrometry measurement method
Given the content of tin. In a certain range, and the amount of the fluorescent intensity is proportional to the measured elements. Join molybdenum substrate can eliminate interference.
3 Reagents
Unless otherwise indicated, the reagents used in this section are excellent pure, the water is two or more than two water water.
3.1 of sodium borohydride.
3.2 sodium hydroxide.
3.3 molybdenum substrate (wSn≤0.00002%).
3.4 nitric acid (ρ = 1.42g/mL).
3.5 hydrochloric acid (ρ = 1.19g/mL).
3.6 sulfate (ρ = 1.84g/mL).
3.7 Hydrogen peroxide.
3.8 sulfate (11).
3.9 Sodium hydroxide solution (200g/L).
3.10 L- cysteine \u200b\u200b(5g/L). Weigh 0.5g L- cysteine \u200b\u200bdissolved in water is added 1mL hydrochloric acid (3.5), water to the
100mL.
3.11 tartrate solution. 400g/L, now with the current.
3.12 Storage tin standard solution. Weigh 0.1000g bismuth (wSn≥99.99%) in 250mL beaker, add 50mL of hydrochloric acid (3.5), plus
Cover the surface of the dish, allowed to stand overnight, until completely dissolved before adding tin 50mL hydrochloric acid (3.5), and then moved into 1000mL volumetric flask, diluted with water to
Engraved lines. This solution 1mL containing 100μg tin.
3.13 tin standard solution. Pipette 1.00mL standard stock solution of tin in 100mL volumetric flask, was added 10mL of hydrochloric acid (3.5), washed with water
Dilute to volume, and mix. This solution 1mL containing 1μg tin.
3.14 a solution of sodium borohydride (15g/L). Weigh 1.5g of sodium borohydride (3.1), previously dissolved was added 0.5g of sodium hydroxide (3.2) in 100mL
Water, completely dissolved shake up, now with the current.
3.15 hydrochloric acid (19).
3.16 Argon, the volume fraction of not less than 99.99%.
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