The determination of trace tin in water samples by inductively coupled plasma mass spectrometry (ICP-MS) after separation and enrichment using mercapto containing dextran gel
The content of tin in geochemical water samples is generally low, and there is no standard method which can be used currently. In this investigation, the trace tin in water samples was detected by inductively coupled plasma mass spectrometry (ICP-MS) after separation and enrichment using mercapto containing dextran gel (SDG). The separation conditions of the SDG column were optimized. The separating effect of tin was the best when the acidity of the solution before filtering by the column was 1% (v/v) hydrochloric acid, the ion strength was 0.1mol/L counted by NaAc, the acidity of eluent was 6N hydrochloric acid and the volume of the eluent was 30 mL. When the proposed method was applied to analyzing actual water samples, the detection limit of tin was 0.37μg/L, the precision (RSD%) was less than 10%, and the recovery rate was in the range of 90%~110%, which could satisfy the determination requirement of trace tin in geochemical water samples.
徐冰旭, 邢夏, 徐进力, 陈海杰, 张勤, 刘亚轩. 巯基葡聚糖分离富集—电感耦合等离子体质谱法测定水中的痕量锡[J]. 物探与化探, 2019, 43(4): 822-827.
Bing-Xu XU, Xia XING, Jin-Li XU, Hai-Jie CHEN, Qin ZHANG, Ya-Xuan LIU. The determination of trace tin in water samples by inductively coupled plasma mass spectrometry (ICP-MS) after separation and enrichment using mercapto containing dextran gel. Geophysical and Geochemical Exploration, 2019, 43(4): 822-827.
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