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YS/T 276.5-2011 English PDF

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YS/T 276.5-2011: Methods for chemical analysis of indium. Part 5: Determination of iron content. Method 1: Graphite furnace atomic absorption spectrometry. Method 2: Flame atomic absorption spectrometry
Status: Valid
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YS/T 276.5-2011English239 Add to Cart 3 days [Need to translate] Methods for chemical analysis of indium. Part 5: Determination of iron content. Method 1: Graphite furnace atomic absorption spectrometry. Method 2: Flame atomic absorption spectrometry Valid YS/T 276.5-2011

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Basic data

Standard ID YS/T 276.5-2011 (YS/T276.5-2011)
Description (Translated English) Methods for chemical analysis of indium. Part 5: Determination of iron content. Method 1: Graphite furnace atomic absorption spectrometry. Method 2
Sector / Industry Nonferrous Metallurgy Industry Standard (Recommended)
Classification of Chinese Standard H13
Classification of International Standard 77.120.99
Word Count Estimation 9,939
Date of Issue 2011-12-20
Date of Implementation 2012-07-01
Older Standard (superseded by this standard) YS/T 276.5-1994
Regulation (derived from) ?MIIT Announcement 2011 No.43
Issuing agency(ies) Ministry of Industry and Information Technology
Summary This standard specifies the determination of the amount of iron in indium. This section applies to the determination of the amount of iron in indium. Measurement range of 0. 00030% to 0. 0030%.

YS/T 276.5-2011: Methods for chemical analysis of indium. Part 5: Determination of iron content. Method 1: Graphite furnace atomic absorption spectrometry. Method 2: Flame atomic absorption 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 indium.Part 5. Determination of iron content.Method 1. Graphite furnace atomic absorption spectrometry.Method 2. Flame atomic absorption spectrometry ICS 77.120.99 H13 People's Republic of China Nonferrous Metals Industry Standard Replacing YS/T 276.5-1994 Methods for chemical analysis of indium Part 5. Determination of iron content Method 1. electrothermal atomic absorption spectrometry Method 2. Flame atomic absorption spectrometry Part 5. Determinationofironcontent- Method1. Graphitefurnaceatomicabsorptionspectrometry- Method2. Flameatomicabsorptionspectrometry Issued on. 2012-07-01 2011-12-20 implementation Ministry of Industry and Information Technology of the People's Republic of China released

Foreword

YS/T 276 "indium chemical analysis method" is divided into 11 sections as follows. --- Part 1. Determination of arsenic content by hydride generation - atomic fluorescence spectrometry; --- Part 2. Determination of tin content Phenylfluorone - bromo cetyl trimethylamine spectrophotometry; --- Part 3. Determination of the amount of thallium methyl green spectrophotometry; --- Part 4. Determination of the amount of chrome aluminum Azure S Spectrophotometry; --- Part 5. Determination of iron content of 1. electrothermal atomic absorption spectrometry Method 2. Flame atomic absorption spectrometry; --- Part 6. copper, cadmium, zinc content - Flame atomic absorption spectrometry; --- Part 7. Determination of lead content by flame atomic absorption spectrometry; --- Part 8. Determination of bismuth content 1. Hydride Generation - Atomic Fluorescence Spectrometry Method 2. Flame atomic absorption spectrometry; --- Part 9. Determination of the amount of indium Na2EDTA titration; --- Part 10. bismuth, aluminum, lead, iron, copper, cadmium, tin, thallium content - Inductively coupled plasma atomic emission spectrometry; --- Part 11. arsenic, aluminum, lead, iron, copper, cadmium, tin, thallium, zinc, bismuth content - Inductively Coupled Plasma Mass Spectrometry. This section drafted in accordance with the rules of GB/T 1.1 is given. This section YS/T Part 5 276. The partial replacement of YS/T 276.5-1994 "Methods for chemical analysis of indium atomic absorption spectrophotometry of copper, iron, zinc, cadmium amount" of Iron Determination of the amount of the part. Compared with YS/T 276.5-1994, this section has the following changes. --- Added electrothermal atomic absorption determination of; --- Measured by the scope of 0.0005% to 0.15% expansion of 0.0003% 0.200%; --- Complements the precision, quality assurance and control provisions; --- Complements the "test report" requirement. The non-ferrous metal part by the National Standardization Technical Committee (SAC/TC243) centralized. This standard is drafted by. Zhuzhou Smelter Group Co., Ltd., Beijing General Research Institute of Mining and Metallurgy. This section is drafted. Beijing Nonferrous Metal Research Institute. It participated in the drafting of this section. Zhuzhou Smelter Group Co., Ltd., Beijing General Research Institute of Mining and Metallurgy. The main drafters of this section. Liu Bing, LI Yan-fen, LI Man Chi, Liu Ying, Zhang Zhizhong, WANG Xiang, Zhu Lijuan, Yeshi Yuan, Song Yanping, Ning Yumei, Gong Yan, Jiang Tao demand. This part of the standard replaces the previous editions are. --- YS/T 276.5-1994; --- GB/T 8221.5-1987. Methods for chemical analysis of indium Part 5. Determination of iron content Method 1. electrothermal atomic absorption spectrometry Warning. Use of this standard shall have a person experiences regular laboratory work. This standard does not point out all possible security issues. Users have the responsibility to take appropriate safety and health practices and to ensure compliance with the conditions relevant national regulations.

1 Scope

This section YS/T 276 specifies the method for determination of iron content of indium. This section applies to the determination of indium in iron content. Determination of the range of 0.00030% to 0.0030%.

2 principle of the method

Sample dissolved in nitric acid, a volume of the test solution injected into the graphite furnace atomic absorption spectrometer measured at a wavelength of 248.3nm iron Absorbance.

3 Reagents

Unless otherwise indicated, used in the analysis confirmed only for the gifted class pure reagents and distilled or deionized water or equivalent purity. Nitrate 3.1 (ρ1.42g/mL), MOS level. 3.2 nitric acid solution (1 1), MOS level. 3.3 iron standard stock solution. Weigh 0.1000g metallic iron (w≥99.99%), placed in 300mL beaker, 80mL nitrate solution (3.2), dissolved by heating, boiling rid of nitrogen oxides, the cooling removed and transferred to 2500mL volumetric flask, dilute to the mark with water and mix. this 1mL solution containing 40μg iron. 3.4 iron standard solution. Pipette 10.00mL iron standard stock solution (3.3), placed 1000mL volumetric flask, nitric acid solution was added 50mL Solution (3.2), dilute to the mark and mix. This solution 1mL containing 400ng iron.

4 Instrument

Electrothermal atomic absorption spectrometer. with electrothermal atomizer, micro sampler or autosampler, iron and hollow cathode lamp background correction Means. Under optimum working conditions, who can be used to achieve the following indicators. --- Quality features. the measurement of the sample solution in the matrix phase consistent solution features quality of the iron should be less than 16pg; --- Precision. measuring the absorbance of 11 with the highest concentration of the standard solution, the relative standard deviation should not exceed 1.0%; the lowest concentration Degree standard solution (not "zero" concentration of the standard) measuring the absorbance of 11 times, the relative standard deviation should not exceed 0.5%; --- Linear curve. The curve is divided into five sections according to concentration, absorbance difference between the absorbance difference between the highest and the lowest segment of the segment Ratio of not less than 0.8.

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