DETERMINATION OF NINETEEN TRACE ELEMENTS IN HIGH PURITY SILVER BY ICP-AES

YANG Liu; GAO Hui-li; WANG Yin-fu; WANG Hai-jiao

2019 Vol. 28, No. 1

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YANG Liu, GAO Hui-li, WANG Yin-fu, WANG Hai-jiao. DETERMINATION OF NINETEEN TRACE ELEMENTS IN HIGH PURITY SILVER BY ICP-AES[J]. Geology and Resources, 2019, 28(1): 95-97.

Citation:

YANG Liu, GAO Hui-li, WANG Yin-fu, WANG Hai-jiao. DETERMINATION OF NINETEEN TRACE ELEMENTS IN HIGH PURITY SILVER BY ICP-AES[J]. Geology and Resources, 2019, 28(1): 95-97.

DETERMINATION OF NINETEEN TRACE ELEMENTS IN HIGH PURITY SILVER BY ICP-AES

Shenyang Center of Geological Survey, CGS, Shenyang 110032, China

Received Date: 13 March 2018

Revised Date: 28 September 2018

Publish Date: 28 February 2019

Abstract

Abstract

Nitric acid is used to dissolve the high purity silver ingot, with ICP-AES to determine the 19 trace elements as Al, Ca, Cd, Co, Cr, Cu, Fe, Mg, Mn, Ni, Pb, Au, Pd, Pt, Rh, Si, Sn, Te and Zn within. To obtain accurate experimental results, select appropriate instrument conditions and analysis spectral lines, then measure the curves to match the silver content. The recovery and accuracy of results prove to be satisfactory. Silver is separated as AgCl precipitate and the trace element contents in the supernatant is determined. The results show that the silver precipitation has little effect on the determination. Therefore, the test can be achieved without the matrix matching of silver. This method can thus eliminate silver interference and reduce sample testing cost.
- high purity silver /
- trace element /
- ICP-AES /
- separation of silver

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References

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