GB/T 4325.9-2013Methods for chemical analysis of molybdenum - Part 9: Determination of nickel content - Dimethylglyoxime spectrophotometry and flame atomic absorption spectrometry (English PDF)
钼化学分析方法 第9部分：镍量的测定 丁二酮肟分光光度法和火焰原子吸收光谱法
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
May 9, 2013
Implementation date
February 1, 2014
Scope
GB/T 4325.9-2013 is the English-translated version of 钼化学分析方法 第9部分：镍量的测定 丁二酮肟分光光度法和火焰原子吸收光谱法.
GB/T 4325.9-2013 is the Chinese standard "Methods for chemical analysis of molybdenum - Part 9: Determination of nickel content - Dimethylglyoxime spectrophotometry and flame atomic absorption spectrometry".
Its scope clause reads: GB/T 4325 provisions of this part of the determination of molybdenum in nickel content. This section applies to molybdenum powder, molybdenum, molybdenum trioxide, ammonium molybdate determination of nickel content.
A method for measuring range. 0.0002% ~ 0.0100%; Method two measuring range. 0.0001% to 0.0100%. Its clauses include general; method dimethylglyoxime spectrophotometry.
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Document preview — GB/T 4325.9-2013
National Standard of the People's Republic of China
- ICS
- 77.120.99
- Classification
- H 63
- Replacing
- GB/T 4325.9-1984
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- 1 Scope
- 2 Normative references
- 3 General
- 4 method dimethylglyoxime spectrophotometry
1 Scope
GB/T 4325 provisions of this part of the determination of molybdenum in nickel content.
This section applies to molybdenum powder, molybdenum, molybdenum trioxide, ammonium molybdate determination of nickel content. A method for measuring range. 0.0002% ~
0.0100%; Method two measuring range. 0.0001% to 0.0100%.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) apply to this section.
GB/T 6682 analytical laboratory use specifications and test methods (ISO 3696)
GB/T 12806 Laboratory glassware single marking flask (ISO 1042)
GB/T 12808 standard laboratory glassware single line pipette (ISO 648)
GB/T 12809 laboratory design and construction principles of glassware gauges (ISO 384)
GB/T 12810 calibration laboratory capacity and methods of use of glassware gauges (ISO 4787)
3 General
3.1
Unless otherwise stated, the use of analytical reagent only recognized in the analysis; the water is distilled or deionized water or equivalent purity,
Shall comply with GB/T 6682's.
3.2
instruments shall be within the test cycle, the performance indicators should meet the technical parameters required for verification; glass containers
GB/T 12808, GB/T 12809, GB/T 12806 stipulated A-level, with reference to the specific use of GB/T 12810 of.
4 method dimethylglyoxime spectrophotometry
4.1 Method summary
The sample was sulfuric acid, ammonium sulfate decomposition. Ammonium citrate - ammonium hydroxide molybdenum complex subject, at pH8 ~ 9, with dimethyl glyoxal oxime - trichloro
Methane extraction, with 0.5g/L hydrochloric acid, and extracted in an alkaline medium, the presence of an oxidizing agent, nickel dimethylglyoxime to form a colored complex measured
Absorbance.
4.2 Reagents
4.2.1
Ammonium sulfate.
4.2.2
chloroform.
4.2.3
sulfuric acid (rho = 1.84g/mL).
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Similar standards
Editions of GB/T 4325.9
| Edition | Title | Revision | Status |
|---|---|---|---|
| GB/T 4325.9-2013 | Methods for chemical analysis of molybdenum - Part 9: Determination of nickel content - Dimethylglyoxime spectrophotometry and flame atomic absorption spectrometry | current edition | Current |
| GB/T 4325.9-1984 | Methods for chemical analysis of molybdenum - Part 9: Determination of nickel content - Dimethylglyoxime spectrophotometry and flame atomic absorption spectrometry | previous edition | Superseded |
This page sells the current edition, GB/T 4325.9-2013. Earlier editions are listed for reference only.
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Related Standards
GB/T 4325.10-2013 — Methods for chemical analysis of molybdenum - Part 10: Determination of copper content - Flame atomic absorption spectrometry
GB/T 4325.8-1984 — Methods for chemical analysis of molybdenum--The dimethylglyoxime photometric method for the determination of nickel content
GB/T 4325.10-1984 — Methods for chemical analysis of molybdenum--The neocuproin photometric method for the determination of copper content
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