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GB/T 3253.11-2009: Methods for chemical analysis of antimony and antimony trioxide -- Determination of bismuth content -- Flame atomic absorption spectrometric method
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Methods for chemical analysis of antimony and antimony trioxide -- Determination of bismuth content -- Flame atomic absorption spectrometric method
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GB/T 3253.11-2009
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Basic data | Standard ID | GB/T 3253.11-2009 (GB/T3253.11-2009) | | Description (Translated English) | Methods for chemical analysis of antimony and antimony trioxide -- Determination of bismuth content -- Flame atomic absorption spectrometric method | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G13 | | Classification of International Standard | 77.120.99 | | Word Count Estimation | 6,624 | | Date of Issue | 2009-04-08 | | Date of Implementation | 2010-02-01 | | Older Standard (superseded by this standard) | GB/T 3253.6-2001 | | Regulation (derived from) | National Standard Approval Announcement 2009 No.4 (Total No.144) | | Issuing agency(ies) |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 method for the determination of bismuth and antimony trioxide in volume. This section applies to the determination of bismuth and antimony trioxide in the amount. Measurement range: 0. 0010% to 0. 10%. | GB/T 3253.11-2009: Methods for chemical analysis of antimony and antimony trioxide -- Determination of bismuth content -- Flame atomic absorption spectrometric method
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Methods for chemical analysis of antimony and antimony trioxide.Determination of bismuth content.Flame atomic absorption spectrometric method
ICS 77.120.99
G13
National Standards of People's Republic of China
Replacing GB/T 3253.6-2001
Methods for chemical analysis of antimony and antimony trioxide
Determination of bismuth content
Atomic Absorption Spectrometry
Posted 2009-04-08
2010-02-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
GB/T 3253 "Methods for chemical analysis of antimony and antimony trioxide," a total of 11 parts.
--- GB/T 3253.1-2008 Methods for chemical analysis of antimony and antimony trioxide - Determination of arsenic content of arsenic molybdenum blue spectrophotometric method;
--- Determination of GB/T 3253.2-2008 Methods for chemical analysis of antimony and antimony trioxide amount of iron phenanthroline spectrophotometry;
--- Flame atomic GB/T 3253.3-2008 Methods for chemical analysis of antimony and antimony trioxide amount of lead absorption spectrometry;
--- GB /determination of sulfur content of antimony and antimony trioxide chemical analysis of combustion and T 3253.4-2009 law;
--- GB/T 3253.5-2008 Methods for chemical analysis of antimony and antimony trioxide - Determination of copper content - Flame atomic absorption spectrometry;
--- GB/T 3253.6-2008 and antimony trioxide of selenium content - Atomic fluorescence spectrometry;
--- GB/T 3253.7-2009 Methods for chemical analysis of antimony and antimony trioxide bismuth content - Atomic fluorescence spectrometry;
--- GB/T 3253.8-2009 Methods for chemical analysis of antimony and antimony trioxide - Determination of the amount of iodometry;
--- Flame atomic GB/T 3253.9-2009 Methods for chemical analysis of antimony and antimony trioxide amount of cadmium absorption spectrometry;
--- GB/T 3253.10-2009 Methods for chemical analysis of antimony and antimony trioxide - Determination of the amount of mercury atomic fluorescence spectrometry;
--- Atomic GB/T 3253.11-2009 Methods for chemical analysis of antimony and antimony trioxide bismuth content absorption spectrometry.
This is Part 11.
This method does not arbitration as a method.
This Part replaces GB/T 3253.6-2001 "chemical analysis of antimony - Determination of bismuth content." Compared with GB/T 3253.6-2001,
This section has the following changes.
--- This section increases the determination of the amount of bismuth trioxide;
--- Text format has been modified;
--- Increasing the precision and quality assurance and control provisions.
This part is proposed by the China Nonferrous Metals Industry Association.
The non-ferrous metal part by the National Standardization Technical Committee.
This section is responsible for drafting unit. tin mine flash-antimony industry limited liability company.
Participated in the drafting of this section. Guangxi Institute of Metallurgy, Hunan Chenzhou Mining Co., Ltd.
The main drafters of this section. Song should ball, Mao Xiaohong, Wu Donghua, Deng Hankin, Zong Yi, Cuide Hai, Huangzhao Min, Wu Shaobo.
This part of the standard replaces the previous editions are.
--- GB/T 3253.6-2001.
Methods for chemical analysis of antimony and antimony trioxide
Determination of bismuth content
Atomic Absorption Spectrometry
1 Scope
GB/T 3253 provisions of this part of the determination of bismuth antimony and antimony trioxide in the amount.
This section applies to the determination of bismuth and antimony trioxide in the amount. Measurement range. 0.0010% to 0.10%.
2 Method summary
Antimony sample dissolved in aqua regia, antimony trioxide sample with hydrochloric acid - hydrogen bromide dissolved in sulfuric acid medium, proper temperature control, addition of hydrochloric acid -
In addition hydrobromide volatile antimony in hydrochloric acid medium, atomic absorption spectrometer wavelength 223.1nm measured absorbance of bismuth.
3 Reagents
Unless otherwise indicated, the reagents used in this section refer to water and analytical grade and third grade water.
3.1 hydrochloride (ρ1.19g/mL).
3.2 HCl (1 + 1).
Nitrate 3.3 (ρ1.42g/mL).
3.4 nitric acid (1 + 1).
3.5 sulfate (1 + 1).
3.6 aqua regia.
3.7 hydrobromide (ρ1.48g/mL).
3.8 hydrochloric acid - hydrogen bromide. an equal volume of hydrochloric acid (3.1) and one volume of hydrogen bromide (3.7) mixed preparation.
3.9 standard solution
3.9.1 Standard bismuth stock solution (1mg/mL)
Weigh 1.0000g pure bismuth (Bi mass fraction ≥99.99%) in 250mL beaker, add 20mL of nitric acid (3.4), cover the table
Side dish, heat gently to dissolve clear, washed with water dish and cup wall surface and cooled. Moved into 1000mL volumetric flask, dilute with water to volume, and mix.
3.9.2 bismuth standard solution (100μg/mL)
Pipette standards 50.00mL bismuth stock solution (3.9.1) in 500mL volumetric flask, was added 50mL of hydrochloric acid (3.1), diluted with water to
Volume, and mix.
4 Instrument
Atomic absorption spectrometer, with a bismuth hollow cathode lamp.
Under optimum working conditions for those who can reach the following indicators can be used.
--- Sensitivity. substantially consistent with the measurement of the solution, the characteristic concentration of cadmium should not exceed 0.2μg/mL;
--- Precision. measuring absorbance 10 times the highest concentration of the standard, and the standard deviation shall not exceed 1.00% of the average absorbance,
With the lowest concentration (not zero concentration) standard solution absorbance measured 10 times, and the standard deviation should not exceed the maximum concentration of the standard
0.50% average absorbance;
--- Linear curve. the curve was divided into five sections, the difference between the ratio of the absorbance of the absorbance difference between the highest and the lowest segment section shall not
Less than 0.8.
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