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Determination of cadmium content in crude zinc |
Received:January 06, 2019 Revised:January 20, 2019 |
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DOI:doi:10.3969/j.issn.2095-1035.2019.03.010 |
KeyWord:crude zinc;cadmium |
Author | Institution |
FAN Lixin |
北矿检测技术有限公司 |
KUAI Lijun |
北矿检测技术有限公司 |
TANG Shufang |
北矿检测技术有限公司 |
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Abstract: |
The determination method of cadmium in crude zinc was established. The sample was decomposed with nitric acid-hydrochloric acid, and the effect of high content of zinc on the determination of low cadmium was eliminated by background deduction. The determination results were recorded after optimizing the instrument conditions. Under the selected experimental conditions, the relative standard deviations(RSD,n=11) of determination results were between 0.95% and 6.32%. The recoveries were between 98.0% and 101.7%. It is basically consistent with the measurement results of ICP-AES, which can meet the daily requirements for the detection of cadmium in crude zinc. |
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