YS/T 536.6-2009Methods for chemical analysis of bismuth. Determination of lead content. Electrothermal atomic absorption spectrometric method (English PDF)

Foreword

YS/T 536-2009 "Method for chemical analysis of bismuth" is divided into 13 parts.

--- YS /536.1 Methods for chemical analysis of bismuth - Determination of copper content - Bis - acetaldehyde T oxalyl Spectrophotometric Method;

--- YS/T 536.2 Methods for chemical analysis of bismuth - Determination of iron content by electrothermal atomic absorption spectrometry;

--- YS/T 536.3 Methods for chemical analysis of bismuth - Determination of antimony content - Malachite green spectrophotometry;

--- YS/T 536.4 Methods for chemical analysis of bismuth - Determination of silver content - Flame atomic absorption spectrometry and electrothermal atomic absorption spectrometry;

--- YS/T 536.5 Methods for chemical analysis of bismuth - Determination of solid-liquid extraction of zinc content - Flame atomic absorption spectrometry;

--- YS/T 536.6 Methods for chemical analysis of bismuth - Determination of lead content by electrothermal atomic absorption spectrometry;

--- YS/T 536.7 Methods for chemical analysis of bismuth arsenic content - Atomic fluorescence spectrometry;

--- YS/T 536.8 Methods for chemical analysis of bismuth chlorine measured amount of mercury thiocyanate spectrophotometry;

--- YS/T 536.9 Methods for chemical analysis of bismuth - Determination of tellurium content of arsenic co-precipitation - oscillopolarographic method;

--- YS/T 536.10 Methods for chemical analysis of bismuth - Determination of tin content of beryllium coprecipitation - spectrophotometry;

--- YS/T 536.11 Methods for chemical analysis of bismuth mercury content - Atomic fluorescence spectrometry;

--- Determination of YS/T 536.12 Methods for chemical analysis of nickel content of bismuth electrothermal atomic absorption spectrometry;

--- YS/T 536.13 Methods for chemical analysis of bismuth - Determination of cadmium content by electrothermal atomic absorption spectrometry.

Part is divided into 6 sections.

The partial replacement of YS/T 536.6-2006 (formerly GB/T 8220.6-1998) "Methods for chemical analysis of bismuth electrothermal atomic absorption spectrometry Determination of lead content. " Compared with YS/T 536.6-2006, this section has the following changes.

--- Complements the precision, quality assurance and control provisions;

--- Text format has been modified.

The non-ferrous metal part by the National Standardization Technical Committee and centralized.

This section is Zhuzhou Smelter Group Co., Ltd. is responsible for drafting.

This section drafted by the Zhuzhou Smelter Group Co., Ltd.

This section from Guangzhou Nonferrous Metal Research Institute participated in the drafting.

1 Scope

This section provides the determination of bismuth in lead content.

This section applies to the determination of bismuth in lead content. Measurement range (mass fraction). 0.0004% to 0.015%.

2 Method summary

The sample is dissolved in nitric acid, the amount of solution into electrothermal atomizer, atomic absorption spectrometer measured at a wavelength of 283.3nm lead Absorbance. When the amount of lead is less than 0.0050%, the use of matrix addition method drawing working curve, obtained in a sample of lead content.

3 Reagents

Preparation of the test solution and water are a water vessel used in the experiments after soaked in dilute nitric acid, washed with water level.

4 Instrument

Graphite furnace atomic absorption spectrometry (background buckle device) attached Lead hollow cathode lamp.

Under optimum working conditions for those who can reach the following indicators can be used.

--- Quality features. the measurement of the sample solution in matrix solution consistent characteristic mass of lead should be less than 12pg.

--- Precision. absorbance measured 10 times the highest concentration of the standard solution, the standard deviation should not exceed 2.0% of the mean absorbance;

With the lowest concentration of standard solution (not "zero" concentration of the standard) measuring the absorbance of 10 times, the standard deviation should not exceed the maximum 1.5% concentration of the standard average absorbance.

--- 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