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| Determination of Arsenic in high purity calcium aluminate powder by hydride formation-atomic fluorescence spectrometry |
| Received:September 06, 2018 Revised:December 04, 2018 |
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| DOI： |
| KeyWord:atomic fluorescence spectrometry; calcium aluminate; arsenic |
| Author | Institution |
| XUE Ning |
中国铝业郑州有色金属研究院有限公司 河南郑州 |
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| Abstract: |
| The determination of arsenic in high purity calcium aluminate powder was studied by hydride generation-atomic fluorescence spectrometry. The sample was dissolved in hydrochloric acid(1 +1) and nitric acid(1 +1), the influence of acid medium and acidity, the amount of thiourea and L-ascorbic acid were studied. Under the optimized experimental conditions, the linear correlation coefficient of arsenic standard curve is greater than 0.9995. Precision and recovery tests were carried out on the samples, the relative standard deviations (RSD,n=6) were between 1.84% and 2.55%，the standard recovery rate were between 98.5% and 107.5% This method could satisfy with the determination of arsenic in high calcium aluminate powder. |
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