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| Study on Interference of Stannum in the Determination of Cadmium by |
| Received:January 27, 2015 Revised:March 11, 2015 |
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| DOI：doi:10.3969/j.issn.2095-1035.2015.02.003 |
| KeyWord:inductively coupled plasma mass spectrometry; stannum; cadmium; interference |
| Author | Institution |
| WANG Fei |
铜陵市环境监测中心站，安徽 铜陵 |
| WANG Deshu |
铜陵市环境监测中心站，安徽 铜陵 |
| TANG Deneng |
铜陵市环境监测中心站，安徽 铜陵 |
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| Abstract: |
| The spectral interference level of stannum (Sn) in the determination of cadmium(Cd) by inductively coupled plasma mass spectrometry (ICP-MS) was investigated with different concentration ratio of Sn/Cd under different work conditions. The content of Cd was obtained by on-line and off-line interference corrections, respectively, which was consistent with the certified value. The results showed that: the contents of Cd maintained good agreement with the certified value without any interference corrects when the concentration ratio of Sn/Cd was below 2 and the effect of Sn on Cd determination was negligible .; the contents of Cd corrected by on-line and off-line interference were in accordance with the certified value when the concentration ratio of Sn/Cd was in the range 2~30; satisfactory results were obtained only by off-line interference when the concentration ratio of Sn/Cd exceeded 30. |
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