摘要
采用HNO3-HClO3消化，HCI溶解香烟样品，应用同位膜镀汞脉冲溶出伏安法测定了香烟和水中微量镉的含量．以0．1mol·L^-1KCI溶液为支持电解质，1．00×10^4mol·L^-1氯化汞溶液镀汞膜，溶出峰电位-0．74V，线性范围3．56×10^-8-1．07×10^-6mol·L^-1，检测限为8．90×10^-9mol·L^-1．分析结果表明国产香烟中含镉量低于国外香烟．
Differential pulse stripping vohammetry analysis for determination of Cd by isochronous mercury plating method in KCI supporting electrolyte is reported. The stripping peak potential arc - 0.74 V （vs SCE）. The peak shape is good and the inference is little. The linear range is 3.56 ×10^-8 - 1.07 × 10^-6 mol. L^-1 .The detection limit of Cd is 8.90 × 10^-9 mol. L^-1. This method can be used in determination of content of Cd in cigarette and water.
出处
《河南工业大学学报（自然科学版）》
CAS
北大核心
2006年第5期55-58,共4页
Journal of Henan University of Technology：Natural Science Edition
关键词
同住镀汞
溶出伏安法
香烟
镉
水
isockronous mercury plating method
differential pulse stripping voltammetry
cadmium
cigarette
water
