GB/T 4325.12-2013 English PDF

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GB/T 4325.12-2013: Methods for chemical analysis of molybdenum -- Part 12: Determination of silicon content -- Inductively coupled plasma atomic emission spectrometry
Status: Valid

GB/T 4325.12: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 4325.12-2013	169	Add to Cart	3 days	Methods for chemical analysis of molybdenum -- Part 12: Determination of silicon content -- Inductively coupled plasma atomic emission spectrometry	Valid
GB/T 4325.12-1984	199	Add to Cart	2 days	Methods for chemical analysis of molybdenum--The chloritization-molybdenum blue photometric method for the determination of silicon content	Obsolete

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Basic data

Standard ID: GB/T 4325.12-2013 (GB/T4325.12-2013)
Description (Translated English): Methods for chemical analysis of molybdenum -- Part 12: Determination of silicon content -- Inductively coupled plasma atomic emission spectrometry
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: H63
Classification of International Standard: 77.120.99
Word Count Estimation: 7,734
Older Standard (superseded by this standard): GB/T 4325.12-1984
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 silicon molybdenum determination. This section applies to molybdenum powder, molybdenum, molybdenum trioxide, ammonium silicon content. Measuring range: 0. 0002% to 0. 100 %

GB/T 4325.12-2013: Methods for chemical analysis of molybdenum -- Part 12: Determination of silicon content -- Inductively coupled plasma atomic emission spectrometry

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Methods for chemical analysis of molybdenum Part 12... Determination of silicon content Inductively coupled plasma atomic emission spectrometry ICS 77.120.99 H63 National Standards of People's Republic of China Replacing GB/T 4325.12-1984 Chemical analysis of molybdenum Part 12. Determination of the amount of silicon Inductively coupled plasma atomic emission spectrometry Part 12. Determinationofsiliconcontent- 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 124,325. This section drafted in accordance with GB/T 1.1-2009 given rules. This Part replaces GB/T 4325.12-1984 "chemical analysis of molybdenum chloride - molybdenum blue spectrophotometric determination of silicon content." This portion GB/T 4325.12-1984 compared to the main technical changes are as follows. --- The "chloride - molybdenum blue spectrophotometric determination" to "Inductively Coupled Plasma Atomic Emission Spectrometry"; --- Measurement range was adjusted to 0.0002% to 0.100%; --- 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., Ganzhou Nonferrous Metallurgy Research Institute, Guangzhou Nonferrous Metal Research Institute. The main drafters of this section. Hu farming families, Zhangjiang Feng, Zhao Yu, Ma Zhijun, Yang Li, Zhong Daoguo, Xiong Xiaoyan. This part of the standard replaces the previous editions are. --- GB/T 4325.12-1984. Chemical analysis of molybdenum Part 12. Determination of the amount of silicon Inductively coupled plasma atomic emission spectrometry

1 Scope

GB/T 4325 This section specifies the method for determination of molybdenum silicon content. This section applies to molybdenum powder, molybdenum, molybdenum trioxide, ammonium molybdate determination of silicon content. Measurement range. 0.0002% to 0.100%.

2 Method summary

Sample with hydrogen peroxide, sodium hydroxide decomposition, acidified with nitric acid, under selected conditions, inductively coupled plasma emission spectrometer, Wavelength 252.411nm or 288.158nm measured emission intensity, calculate the mass fraction of the measured elements by working curve method.

3 Reagents

Unless otherwise indicated in the analysis using only recognized as analytical grade reagents and distilled or deionized water or equivalent purity. 3.1 Hydrogen peroxide (ρ = 1.10g/mL), pure class distinctions. 3.2 nitric acid (ρ = 1.42g/mL), pure class distinctions. 3.3 Sodium hydroxide solution (200g/L), pure class distinctions. 3.4 molybdenum trioxide, pure spectrum. 3.5 molybdate, pure spectrum. 3.6 silicon standard stock solution. Weigh 0.1069g calcined at 900 ℃ to constant weight of silica (reference reagent), placed in a platinum crucible, add 3g into anhydrous sodium carbonate in 900 ℃ melted, cooled, dissolved in water and transferred to 500mL volumetric flask, dilute with water to volume, and mix. Storage Stored in plastic bottles. This solution 1mL containing 100μg silicon. 3.7 Silicon standard solution. Pipette 10.00mL silicon standard stock solution (3.6) in 100mL volumetric flask, dilute to the mark, mix, Store in plastic bottle. This solution 1mL containing 10μg silicon.

4 Instrument

OES. Resolution < 0.006nm (200nm office). Step 5 Analysis 5.1 Determination of the number of Independently measured twice and averaged. 5.2 Sample Table 1 weighed amount of sample, accurate to 0.0001g. ......

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