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本文报道了采用国产Ｄ４１２螯合树脂的在线微型螫合树脂柱预富集分离ＩＣＰ－ＡＥＳ法测定痕量镉的技术，选择了最佳的在线预富集条件，对生物标准参考物质中的痕量镉进行了测定，结果与标准值吻合。
In this paper, a technique for the determination of trace cadmium by ICP-AES pre-enrichment using domestic D412 chelating resin column was developed. The optimal conditions for on-line preconcentration were selected and the trace of the bio-standard reference material The amount of cadmium was measured and the results were consistent with the standard values.