FI-HG-ICP-AES测定痕量镉的研究

FI-HG-ICP-AES测定痕量镉的研究 DETERMINATION OF TRACE CADMIUM BY FI HG ICP AES 喻昕 Yu Xin 1 2 3 first-author 廖振环 Liao Zhenhuan 1 2 3 江祖成 Jiang Zucheng 1 2 3 陈建国 1 2 3 王松青 1 2 3 武汉大学化学系 武汉大学化学系 Chemistry Department of Wuhan University,Wuhan 430072,China) Cheng Jianguo, Wang Songqing Chemistry Department of Wuhan University,Wuhan 430072,China) Cheng Jianguo, Wang Songqing 宁波进出口商品检验局 宁波进出口商品检验局 武汉大学化学系宁波进出口商品检验局 武汉大学化学系宁波进出口商品检验局 提出流动注射（ＦＩ）－氢化物发生（ＨＧ）－电感耦合等离子体（ＩＣＰ）原子发射光谱法（ＡＥＳ）联用技术测定痕量镉．对影响氢化物形成的因素进行了研究．在选择的最佳实验参数下，进样体积为３００μＬ时，本法的检出限为０．２μｇ·Ｌ－１，精密度为１．２％（ｃ＝１０μｇ·Ｌ－１，ｎ＝７）．进样速率达７５样次／ｈ．该法用于茶叶及塑料浸取液中痕量镉的测定，结果满意． The determination of trace cadmium by flow injection hydride generation inductively coupled plasma atomic emission spectrometry （FI HG ICP AES）has been investigated in detail ,and the theory of reaction was put forward,The optimal experimental parameters were achieved.The detection limit was 0.2 μg·L -1 ,RSD was 1.2% at the 10 μg·L -1 level and the frequenc of sample introduction was 75 h -1 on condition that the sample loading volume was 300 μL.The proposed method was applied to the determination of trace cadmium in tea and plastic infusions ,the results were satisfactory . 流动注射 氢化物发生 镉 电感耦合等离子体原子发射光谱 flow injection hydride generation cadmium inductively coupled plasma atomic emission spectrometry O657.31 1997-06-01 2021-04-01 6