Multielement Determination of Trace Elements in Seawater by Inductively Coupled Plasma Mass Spectrometry after Tandem Preconcentration with Cooperation of Chelating Resin Adsorption and Lanthanum Coprecipitation.
Multielement Determination of Trace Elements in Seawater by Inductively Coupled Plasma Mass Spectrometry after Tandem Preconcentration with Cooperation of Chelating Resin Adsorption and Lanthanum Coprecipitation.
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DOI：
10.1246/bcsj.74.31
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发表时间：
2001
影响因子：
4
通讯作者：
T. Yabutani;K. Chiba;H. Haraguchi
中科院分区：
文献类型：
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作者：
T. Yabutani;K. Chiba;H. Haraguchi
采用螯合树脂吸附和La共沉淀相结合的串联预富集方法，建立了电感耦合等离子体质谱同时测定海水中痕量元素的前处理方法。首先用螯合树脂处理海水样品(250ml)，进行痕量元素的预富集，然后用电感耦合等离子体质谱(ICP-MS)测定回收率良好的痕量元素。在螯合树脂预富集中回收较差的具有氧阴离子和氢化物生成化学性质的微量元素，通过La共沉淀法进一步进行预富集。结果表明，将该串联方法应用于开放海水标准物质(NASS4)的分析，可在钼的9.6μg L-1到TM的0.00018μg L-1的浓度范围内测定30多种元素。此外，还对开放海水标准物质的分析结果与近海标准物质的分析结果进行了比较。
A tandem preconcentration method, in which chelating resin adsorption and La coprecipitation were cooperatively employed for preconcentration, was developed as a pretreatment method for simultaneous multielement determination of trace elements in seawater by ICP-MS. First, the seawater sample (250 ml) was treated with a chelating resin for preconcentration of trace elements, and then trace elements with good recoveries were determined by ICP-MS. Trace elements with the chemical properties of oxoanion- and hydride-formation, which were poorly recovered in the chelating resin preconcentration, were further subjected to preconcentration by La coprecipitation. As a result, more than 30 elements could be determined in the concentration range from 9.6 μg L-1 for Mo to 0.00018 μg L-1 for Tm, when the present tandem method was applied to the analysis of open seawater standard reference material (NASS-4). Furthermore, the analytical results for open seawater reference materials were compared with those for coastal...