ICP-OES法同时测定果蔬中铅、砷、镉、铬、铜、锡含量  

Determination of Lead,Arsenic,Cadmium,Chrome,Copper,Tin in Vegetable by ICP-OES

作　　者：鞠福龙[1] 李俊伟[1] 李春娟[1] 

机构地区：[1]黑龙江省质量监督检测研究院,黑龙江哈尔滨150050

出　　处：《辽宁农业科学》2010年第2期29-31,共3页Liaoning Agricultural Sciences

摘　　要：果蔬样品经混酸消化后,控制一定的酸度,定容后应用等离子体发射光谱法（ICP-OES）对果蔬中铅、砷、镉、铬、铜、锡六种有害重金属进行测定,研究了分析测定条件,方法简单快速。测定结果表明,五种元素的加标平均回收率在91.0%-107%之间。其RSD均小于3.5%。按该方法进行处理及测定铅、砷、镉、铬、铜、锡,在选择的测定条件下最低检出限分别为0.0006 mg/kg、0.0003 mg/kg、0.00003 mg/kg、0.00005 mg/kg、0.00003 mg/kg、0.0006 mg/kg。Lead,arsenic,cadmium,chrome,copper,tin in Vegetable digested by mixed acid was determined by ICP-OES with analyzing determining conditions.The method was simple and rapid.The method was applied to the determination of Vegetable,The results indicated that the recovery was 91.0%～107.0% with RSD being less than 3.5%.According to this method of treatment and determination of lead,arsenic,cadmium,chrome,copper,tin,Under determination conditions in the choice.The lowest detection limit was 0.0006 mg/kg,0.0003 mg/kg,0.00003 mg/kg,0.00005 mg/kg,0.00003 mg/kg,0.0006 mg/kg.

关 键 词：ICP-OES 果蔬 铅 砷 镉 铬 铜 锡 

分 类 号：O657.3[理学—分析化学]