GB/T 14506.22-2010Methods for chemical analysis of silicate rocks - Part 22: Determination of vanadium content (English PDF)

3 Indirect polarography in a sulfuric acid-mandelic acid-potassium chlorate base solution

4 Polarography in an acetic acid-sodium acetate-cupferron base solution

Foreword

GB/T 14506, Methods for chemical analysis of silicate rocks, consists of the following 30 parts:

- Part 1: Determination of adsorbed water content;

- Part 2: Determination of combined water content;

- Part 3: Determination of silicon dioxide content;

- Part 4: Determination of aluminium oxide content;

- Part 5: Determination of total iron content;

- Part 6: Determination of calcium oxide content;

- Part 7: Determination of magnesium oxide content;

- Part 8: Determination of titanium dioxide content;

- Part 9: Determination of phosphorus pentoxide content;

- Part 10: Determination of manganese oxide content;

- Part 11: Determination of potassium oxide and sodium oxide content;

- Part 12: Determination of fluorine content;

- Part 13: Determination of sulfur content;

- Part 14: Determination of ferrous oxide content;

- Part 15: Determination of lithium content;

- Part 16: Determination of rubidium content;

- Part 17: Determination of strontium content;

- Part 18: Determination of copper content;

- Part 19: Determination of lead content;

- Part 20: Determination of zinc content;

- Part 21: Determination of nickel and cobalt content;

- Part 22: Determination of vanadium content;

- Part 23: Determination of chromium content;

- Part 24: Determination of cadmium content;

- Part 25: Determination of molybdenum and tungsten content;

- Part 26: Determination of cobalt content;

- Part 27: Determination of nickel content;

- Part 28: Determination of 16 major and minor constituents;

- Part 29: Determination of 22 elements including rare earth elements;

- Part 30: Determination of 44 elements.

This part is Part 22 of GB/T 14506.

This part replaces GB/T 14506.22-1993, Methods for chemical analysis of silicate rocks - Determination of vanadium.

Compared with GB/T 14506.22-1993, the main changes in this part are as follows:

- normative references have been added;

- warning and caution content has been added;

- the mass of test portion to be weighed and the aliquots of solution to be taken are now presented in tabular form.

This part was proposed by the Ministry of Land and Resources of the People's Republic of China.

This part is under the jurisdiction of the National Technical Committee for Land and Resources Standardization.

Organisation responsible for drafting this part: National Research Center for Geoanalysis.

Drafting organisations of this part: National Research Center for Geoanalysis, Zhejiang Institute of Geology and Mineral Resources.

Main drafters of this part: Zheng Cunjiang, Zhang Mingjie, Hu Yongping, Wang Suming.

Previous editions of the standard replaced by this part: GB/T 14506.22-1993.