Simultaneous Multielement Determination of Trace Metals in Seawater by Inductively Coupled Plasma Atomic Emission Spectrometry Using Chelating Resin Column Preconcentration
Simultaneous Multielement Determination of Trace Metals in Seawater by Inductively Coupled Plasma Atomic Emission Spectrometry Using Chelating Resin Column Preconcentration
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螯合树脂柱预富集电感耦合等离子体原子发射光谱法同时多元素测定海水中的痕量金属
DOI：
10.1246/bcsj.58.3229
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发表时间：
1985
影响因子：
4
通讯作者：
H. Haraguchi
中科院分区：
文献类型：
--
作者：
Jiazhi Chu;T. Akagi;H. Haraguchi
研究了使用 Chelex-100 树脂柱预富集海水中的痕量金属，并通过电感耦合等离子体原子发射光谱 (ICP-AES) 进行同时测定。详细研究了最佳预浓缩条件。使用100 ml 1 M 乙酸铵缓冲溶液（1 M=1 mol dm−3），可以充分去除海水中的基质元素，且不会损失分析物。通过溶解柱内干燥的HNO3洗脱液，可以达到200倍的浓缩倍数。对于大多数研究元素来说，该方法的空白小得可以忽略不计。 Al、Cd、Co、Cr、Cu、Fe、Mn、Mo、Ni、Pb、Ti、V 和 Zn 的检测限在几 ng/1 至 100 ng/1 范围内。本技术适用于沿海和海洋海水中痕量金属的测定。
Preconcentration of trace metals in seawater using a Chelex-100 resin column was investigated for simultaneous determination by inductively coupled plasma atomic emission spectrometry (ICP-AES). The optimum preconcentration conditions were examined in detail. With 100 ml of 1 M ammonium acetate buffer solution (1 M=1 mol dm−3), the matrix elements in seawater could be removed sufficiently without loss of analytes. The concentration factor of 200 times could be achieved by dissolving the dried HNO3 eluent of the column. The blanks of the method were negligibly small for most elements investigated. The detection limits were in the range of several ng/1 to 100 ng/1 for Al, Cd, Co, Cr, Cu, Fe, Mn, Mo, Ni, Pb, Ti, V, and Zn. The present technique was applied to the determination of trace metals in coastal and ocean seawater.