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| Determination of silver, lead, cadmium in high antimony smoke by flame atomic absorption spectrometry |
| Received:May 05, 2014 Revised:May 24, 2014 |
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| DOI： |
| KeyWord:flame;atomic absorption;spectrometry, high;antimony fumes, silver, lead, cadmium |
| Author | Institution |
| Huang Jianhui |
中国有色桂林矿产地质研究院有限公司 |
| Lu Handi |
中国有色桂林矿产地质研究院有限公司 |
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| Abstract: |
| The analysis method is used to determine silver, lead, cadmium in high antimony smoke by flame atomic absorption spectrometry. After aqua regia, perchloric acid dissolution, with the use of tetravalent antimony bromide of lower boiling point nature, antimony will be removed from samples to eliminate the matrix interference of antimony. In hydrochloric acid - perchloric acid - thiourea medium silver, lead, cadmium are analyzed simultaneously. The detection limit: Ag is 0.0037μg/mL, Pb is 0.0198μg/mL, Cd is 0.0016μg/mL. Precision (RSD, N = 11): Ag was 0.92% ~ 1.04%, Pb was 1.29% ~ 2.21%, Cd of 1.99% ~ 2.22%. Recoveries: Ag was 99.30% ~ 101.8%, Pb was 98.60% ~ 102.5%, Cd was 98.40% to 104.0%. The method is accurate, reliable, simple, fast and totally for the silver, lead, cadmium determination of high antimony smoke. |
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