YS/T 667.1-2008The testing methods for chemical alumina. Part 1: Determination of cadmium, chromium and vanadium in aluminum hydroxide for filler and pseudo bodhmite by ICP-AES (English PDF)

Foreword

YS/T 667 "Chemical alumina chemical analysis methods," is divided into four parts.

--- Part 1. filler aluminum hydroxide and quasi boehmite of cadmium, chromium, vanadium content - Inductively coupled plasma optical emission Spectroscopy;

--- Part 2. filler aluminum hydroxide and quasi boehmite arsenic, mercury, lead content was measured by hydride generation - inductively coupled plasma Daughters emission spectrometry;

Part --- Section 3. 4A zeolite cadmium, chromium, vanadium content - Inductively coupled plasma atomic emission spectrometry;

Part --- Chapter 4. 4A zeolite arsenic, mercury content was measured by hydride generation - inductively coupled plasma emission spectrometry.

This is Part 1.

Appendix A of this section is an informative annex.

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

This standard by the Aluminum Corporation of China Shandong Branch, China Nonferrous Metals Industry Institute of Standards Metrology and Quality is responsible for drafting.

1 Scope

This section provides cadmium, chromium, vanadium content determination with aluminum hydroxide filler and quasi boehmite in.

This section applies to the filler aluminum hydroxide and boehmite Determination of cadmium, chromium, vanadium intended. Measurement range. 5 × 10-5% ~ Cd 5 × 10-3%; Cr 3 × 10-4% ~ 5 × 10-3%; V 3 × 10-4% ~ 5 × 10-3%.

2 Principle of the method

The sample is dissolved in hydrochloric acid, in dilute hydrochloric acid medium, directly into the argon plasma excitation source, subjected to spectral measurement, with matrix matching method school Positive impact on the determination of the substrate.

3 Reagents

Unless otherwise indicated in the analysis using only deionized water or equivalent purity.

4 Instrument

Full Spectrum Direct Reading plasma emission spectrometer.

5 Sample

Samples at 105 °C ± 5 °C oven baking 1h. Placed in a desiccator, cooled to room temperature, and immediately weighed.

6 Step, Analysis