YS/T 520.1-2007Chemical analysis of gallium. Part 1: Determination of copper content. The 2, 9-dimethy-4, 7-diphenyl-1, 10-phenanthroline spectrophotometric method (English PDF)

Foreword

YS/T 520-2007 "Chemical analysis of gallium" Is the YS/T 520-2006 (formerly GB/T 4375-1984) amendments, divided into Part 12.

--- Part 1. Determination of copper content of 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline spectrophotometry

--- Part 2. Determination of lead content of 4- (2-pyridyl) - resorcinol spectrophotometry

--- Part 3. Determination of aluminum content Chromazurol S- tetradecyl pyridine bromide spectrophotometric method

--- Part 4. Determination of iron content of 4,7-diphenyl-1,10-phenanthroline spectrophotometry

--- Part 5. Determination of calcium content nitrous oxide - acetylene flame atomic absorption spectrometry

--- Part 6. Determination of tin content salicylfluorone - cetyl trimethyl ammonium bromide, spectrophotometry

--- Part 7. Determination of silicon content extraction - molybdenum blue spectrophotometric method

--- Part 8. Determination of indium content of ethyl violet spectrophotometry

--- Part 9. Determination of germanium content Phenylfluorone - polyethylene glycol octyl phenyl ether extraction spectrophotometric method

--- Part 10. Determination of zinc content atomic absorption spectrometry

--- Part 11. Determination of mercury content of the cold atomic absorption spectrometry

--- Part 12. lead, copper, nickel, aluminum, indium and zinc Determination of chemical spectroscopy this is Part 1.

The partial replacement of YS/T 520.1-2006 (formerly GB/T 4375.1-1984).

This section is a "measurement Chemical analysis of gallium Part 1 copper content of YS/T 520.1-2006 2,9- dimethyl-4,7-Diphenyl-1,10-phenanthroline spectrophotometry "editorial finishing.

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

This standard by the Aluminum Corporation of China Shandong branch responsible for drafting.

Drafters of this section. Yun-Xia Wang, Wang Li set, Xu good text, all red Tao.

The non-ferrous metal part by the National Standardization Technical Committee responsible for the interpretation.

This part of the standard replaces the previous editions are.

--- YS/T 520.1-2006 (formerly GB/T 4375.1-1984).

Chemical analysis of gallium Part 1. Determination of copper content 2,9-dimethyl-4,7-diphenyl 1,10 phenanthroline spectrophotometry

1 Scope

This section provides gallium determination of copper content.

This section applies to the determination of copper content in gallium. Measurement range. 0.00050% to 0.040%.

2 Method summary

Sample with nitric acid, hydrochloric acid dissolved. In the presence of ammonium citrate, copper reduction to hydroxylamine hydrochloride, under conditions of pH = 5, and copper (I) and 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline yellow complex formed by isoamyl alcohol extraction, in the spectrophotometer at a wavelength of 470nm Measuring the absorbance.

3 Reagents

3.1 ethanol, pure class distinctions.

3.2 isoamyl alcohol.

4 Instrument

Spectrophotometer.

5 Sample

The samples in sealed Teflon bottle, placed in 50 °C water bath until the sample is completely converted to a liquid state, shaken, cooled to Room temperature before use.