Determination of Twenty-Three Trace Impurity Elements in Pure Silver By Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES)

JOURNAL OF QUJING NORMAL UNIVERSITY ›› 2017, Vol. 36 ›› Issue (3): 35-39.

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Determination of Twenty-Three Trace Impurity Elements in Pure Silver By Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES)

Li Guixiang^{1, 2}, Lv Jianzhao³, Shen Fachun¹

1. Department of Pharmcy, Qujing Medical College, Qujing Yunnan, 655000;
2. School of Life Science and Technology, Kunming University of Science and Technology,Kunming Yunnan, 650500;
3. Maternal and Child Health Center, Qujing Yunnan, 655000, China

Received:2016-12-12 Online:2017-05-26

Abstract

Abstract: ICP-AES is used in this research to measure 23 kinds of impurity elements in pure silver so as to assess the quality of pure silver. The influence of the factors such as the choice of spectral line, the effect of salt and acid is discussed and verified. Result from 11 experiments of the reagent by curve work show that 23 impurity elements display a good linear relationship (r≥0.9994); the detection limit is in the range of 0.0005~ 0.0108 mg/L; the standard addition recovery rate is in the range of 96.8%~104.6%; relative standard deviations(RSD n=10) is in the range of 4.01%~7.85%. It is concluded that this method is simple, accurate, reliable and sensitive,and it can be used to detect 23 kinds of impurity elements in pure silver.

Key words: ICP-AES, pure silver, trace impurity elements

CLC Number:

TG115.3

Li Guixiang, Lv Jianzhao, Shen Fachun. Determination of Twenty-Three Trace Impurity Elements in Pure Silver By Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES)[J]. JOURNAL OF QUJING NORMAL UNIVERSITY, 2017, 36(3): 35-39.

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Determination of Twenty-Three Trace Impurity Elements in Pure Silver By Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES)

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