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YS/T 276.7-2011 English PDF

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YS/T 276.7-2011: Methods for chemical analysis of indium. Part 7: Determination of lead content. Flame atomic absorption spectrometry
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YS/T 276.7-2011English189 Add to Cart 3 days [Need to translate] Methods for chemical analysis of indium. Part 7: Determination of lead content. Flame atomic absorption spectrometry Valid YS/T 276.7-2011

PDF similar to YS/T 276.7-2011


Standard similar to YS/T 276.7-2011

YS/T 252.6   GB/T 3884.2   GB/T 3884.1   YS/T 276.11   YS/T 276.1   YS/T 276.10   

Basic data

Standard ID YS/T 276.7-2011 (YS/T276.7-2011)
Description (Translated English) Methods for chemical analysis of indium. Part 7: Determination of lead content. Flame atomic absorption spectrometry
Sector / Industry Nonferrous Metallurgy Industry Standard (Recommended)
Classification of Chinese Standard H13
Classification of International Standard 77.120.99
Word Count Estimation 7,765
Date of Issue 2011-12-20
Date of Implementation 2012-07-01
Older Standard (superseded by this standard) YS/T 276.6-1994
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 indium in the lead. This standard applies to the determination of the amount of indium lead. Measuring range: 0. 00030% to 0. 200%.

YS/T 276.7-2011: Methods for chemical analysis of indium. Part 7: Determination of lead content. 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 7. Determination of lead content.Flame atomic absorption spectrometry ICS 77.120.99 H13 People's Republic of China Nonferrous Metals Industry Standard Replacing YS/T 276.6-1994 Methods for chemical analysis of indium Part 7. Determination of lead content Flame Atomic Absorption Spectrometry Part 7. Determinationofleadcontent- Issued on. 2011-12-20 2012-07-01 implementation Ministry of Industry and Information Technology of the People's Republic of China released

Foreword

YS/T 276 "indium chemical analysis methods," including a total of 11 parts. --- 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 Section 7276 of. The partial replacement of YS/T 276.6-1994 "Methods for chemical analysis of indium atomic absorption spectrophotometry lead content", and YS/T 276.6 -1994 Compared to the main changes are as follows. --- Changed the extracting agent, with butyl acetate instead of methyl isobutyl ketone; --- Measuring range extended from 0.0010% - from 0.025 to 0.00030% - 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. Guangxi China Tin Group Co., Ltd. Participated in the drafting of this section. Zhuzhou Smelter Group Co., Ltd., MCC Huludao Nonferrous Metals Group Co., Ltd. Drafters of this section. Tan Zuo Ming Yang concept of new, Luopei Zhen, Liang Bowen, Zhang Zhizhong, Zhao Shu Mei, Luo Gan, Zhu-fan, Liu Jihong, the more segments. This part of the standard replaces the previous editions are. --- YS/T 276.6-1994; --- GB 8221.6-1987. Methods for chemical analysis of indium Part 7. Determination of lead content Flame 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 provides the determination of indium in lead content. This section applies to the determination of indium in lead content. Determination of the range of 0.00030% to 0.200%.

2 principle of the method

Sample decomposition with hydrobromic acid, butyl acetate, indium extraction and separation, the aqueous phase atomic absorption spectrometer at a wavelength of 283.3nm, Determination of lead 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. 3.1 butyl acetate. 3.2 hydrochloride (ρ1.19g/mL). 3.3 hydrobromide (ρ1.42g/mL). Nitrate 3.4 (ρ1.42g/mL). 3.5 hydrobromic acid solution (5.5mol/L). Pipette 404mL hydrobromide (3.3) in 500mL volumetric flask, dilute with water to volume, and mix. 3.6 nitric acid solution (14). 3.7 lead standard stock solution. Weigh 1.0000g cleaned surface of metallic lead (w≥99.99%) placed in 250mL beaker, add 10mL of nitric acid (3.6), at low temperature to dissolve completely get rid of nitrogen oxides boiling, cooling is removed and transferred to 1000mL volumetric flask, washed with water Dilute to volume, and mix. 1mL solution containing 1mg lead. 3.8 Lead standard solution. Pipette 20.00mL lead standard stock solution (3.7) placed in 200mL flask, add 10mL of nitric acid (3.6), dilute to the mark and mix. This solution 1mL containing 100μg lead.

4 Instrument

Atomic absorption spectrometer, with a lead hollow cathode lamp. Under instrument conditions, who can achieve the following indicators atomic absorption spectrometer can be used. --- Characteristic concentration. In line with the measurement of the sample solution matrix solution, characterized in lead concentration should not exceed 0.25μg/mL. --- 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 10 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

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