GB/T 4325.11-2013Methods for chemical analysis of molybdenum - Part 11: Determination of aluminum content - Chromazurol S spectrophotometry and inductively coupled plasma atomic emission spectrometry (English PDF)
钼化学分析方法 第11部分：铝量的测定 铬天青S分光光度法和电感耦合等离子体原子发射光谱法
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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 4325.11-2013 is the English-translated version of 钼化学分析方法 第11部分：铝量的测定 铬天青S分光光度法和电感耦合等离子体原子发射光谱法.
GB/T 4325.11-2013 is the Chinese standard "Methods for chemical analysis of molybdenum - Part 11: Determination of aluminum content - Chromazurol S spectrophotometry and inductively coupled plasma atomic emission spectrometry".
Its scope clause reads: GB/T 4325 provisions of this part of the molybdenum powder, molybdenum, molybdenum trioxide, ammonium molybdate determination of aluminum content.
This section applies to molybdenum powder, molybdenum, molybdenum trioxide, ammonium molybdate determination of aluminum content. A method for measuring range. 0.0005% 0.025%; Method two measuring range. 0.0050% to 1.00%. Its clauses include general.
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Document preview — GB/T 4325.11-2013
National Standard of the People's Republic of China
- ICS
- 77.120.99
- Classification
- H 63
- Replacing
- GB/T 4325.11-1984
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- 1 Scope
- 2 Normative references
- 3 General
- 4.1 Method summary
- 4.2 Reagents
1 Scope
GB/T 4325 provisions of this part of the molybdenum powder, molybdenum, molybdenum trioxide, ammonium molybdate determination of aluminum content.
This section applies to molybdenum powder, molybdenum, molybdenum trioxide, ammonium molybdate determination of aluminum content. A method for measuring range. 0.0005%
0.025%; Method two measuring range. 0.0050% to 1.00%.
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) applies to this document.
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.
Method 4 a Chromium Azure S Spectrophotometry
4.1 Method summary
Sample to decomposition of hydrogen peroxide and sodium hydroxide, potassium pyrophosphate residue was melted, flooding in pH8.5 ~ 9.0, the extracted with ethyl acetate
Take aluminum tantalum reagent complexes were separated by dilute hydrochloric acid, after back-extraction, in hexamethylenetetramine buffer solution, aluminum and chrome azure S generated purple
Red complex, measuring the absorbance.
4.2 Reagents
4.2.1
coke potassium sulfate.
4.2.2
Hydrogen peroxide (rho = 1.10g/mL).
4.2.3
ethyl acetate.
......
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 4325.11
| Edition | Title | Revision | Status |
|---|---|---|---|
| GB/T 4325.11-2013 | Methods for chemical analysis of molybdenum - Part 11: Determination of aluminum content - Chromazurol S spectrophotometry and inductively coupled plasma atomic emission spectrometry | current edition | Current |
| GB/T 4325.11-1984 | Methods for chemical analysis of molybdenum - Part 11: Determination of aluminum content - Chromazurol S spectrophotometry and inductively coupled plasma atomic emission spectrometry | previous edition | Superseded |
This page sells the current edition, GB/T 4325.11-2013. Earlier editions are listed for reference only.
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Related Standards
GB/T 4325.1-2013 — Methods for chemical analysis of molybdenum - Part 1: Determination of lead content - Graphite furnace atomic absorption spectrometry
GB/T 4325.10-2013 — Methods for chemical analysis of molybdenum - Part 10: Determination of copper content - Flame atomic absorption spectrometry
GB/T 4325.12-2013 — Methods for chemical analysis of molybdenum - Part 12: Determination of silicon content - Inductively coupled plasma atomic emission spectrometry
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