【摘要】 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。更多还原

【Abstract】 On-line preconcentration ICP-AES was used to determine the trace amounts of cadmium in biological samples.The column material was D412 chelating resin in 50-60mesh.The experimental conditions including the PH of sample solution,the acidity of eluant,and the flow rates of sample solution and eluant were optimized.The detection limit was 1.7ng/ml. The enrichment factor at 5 ml loading volume was 4.1,Cadmium in bovine liver (BCR CRM 185) was measured by the method and in good agreement with the certified value.更多还原