| Autor: |
Guo, Zhong-Xian, Cai, Qiantao, Yu, Chunhai, Yang, Zhaoguang |
| Zdroj: |
JAAS (Journal of Analytical Atomic Spectrometry); 2003, Vol. 18 Issue: 11 p1396-1399, 4p |
| Abstrakt: |
A new method for the simultaneous determination of bromate and six bromoacetic acids in water was developed by online coupling anion-exchange chromatography separation to element-specific inductively coupled plasma mass spectrometry ICP-MS detection. Factors affecting the chromatographic and ICP-MS performances were systematically investigated. The separation was achieved on a Dionex IonPac®AS11-HC column 4.0 × 250 mm by elution with 100 mM ammonium nitrate. The detection limits 3σ of the analytes were 0.13–0.36 µg L−1based on a 500-µL sample injection. The possible masking of bromochloroacetic acid by the relatively high level of bromide in the chromatogram was avoided by sample pretreatment with Dionex OnGuard®Ag and H cartridges. The sample matrix did not show significant influence on the analysis. The method has been applied to analysis of various waters with good precisions and spiked recoveries of 80.8–113.8. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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