YS/T 276.6-2011Methods for chemical analysis of indium. Part 6: Determination of copper, cadmium and zinc content. Flame atomic absorption spectrometry (English PDF)

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 is in accordance with the rules of GB/T 1.1 gives drafted.

This section YS/T Part 6 276.

The partial replacement of YS/T 276.5-1994 "Methods for chemical analysis of indium atomic absorption spectrophotometry of copper, iron, zinc, cadmium content" in the Determination of copper, zinc portion, the amount of cadmium, compared with YS/T 276.5-1994, have the following main changes.

--- The determination of iron in a single listed, an increase of electrothermal atomic absorption spectrometry;

--- Copper measuring range extended from 0.0003% ~ 0.0015-.00030% ~ 0.200%;

Cadmium measurement range extended from 0.0010% ~ 0.025 to 0.00030% - 0.200%;

Zinc measurement range extended from less than 0.0010% from 0.0025 to 0.00030 percent to 0.100%;

--- 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.

1 Scope

This section YS/T 276 provides for copper indium, cadmium and zinc content.

This section applies to copper, cadmium, zinc contents in indium. Measurement range Cu0.00030% ~ 0.200%, Cd0.00030% ~ 0.200%, Zn0.00030% ~ 0.100%.

2 Principle of the method

Sample decomposition with hydrochloric acid. In hydrochloric acid medium, atomic absorption spectrometer wavelength 324.7nm, 228.8nm, 213.9nm place, respectively Measurement of copper, cadmium, zinc 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 hydrochloride (rho1.19g/mL).

Nitrate 3.2 (rho1.42g/mL).

3.3 hydrochloric acid solution (119).

3.4 nitric acid solution (11).

3.5 nitric acid solution (119).