导数示波极谱法测定大气中微量的二硫化碳  

DETERMINATION OF TRACE CARBON DISULFIDE IN THE ATMOSPHERE BY DERIVATIVE OSCILLOPOLAROGRAPHY

作　　者：韦进宝[1] 唐智勇[1] 张琳[1] 卢大远[2] 

机构地区：[1]武汉大学环境科学系,武汉430072 [2]武汉市环境监测中心站

出　　处：《武汉大学学报（自然科学版）》1994年第5期80-84,共5页Journal of Wuhan University(Natural Science Edition)

摘　　要：研究了导数示波极谱法测定大气中微量的二硫化碳。在0.6900mol·L^(-1)乙醇-0.0970mol·L^(-1)二乙胺-0.0015mol·L^(-1)EDTA底液中,二硫化碳产生一灵敏的峰电流。峰电位为—0.64V(vs.SCE)。二硫化碳浓度在1.00×10^(-2)mol·L^(-1)～3.00×10^(-5)mol·L^(-1)范围内,浓度与峰电流具有线性关系。检测限为1.00×10^(-5)mol·L^(-1)。用本方法测定大气中的二硫化碳,取得了满意的结果。This paper studied on detemination of trace carbon disulfide in atmosphere by derivative oscillopolarography. A sensitive peak current of carbon disulfide can be obtained in the solution of 0. 69mol ?L-1alcohol-0. 097mol ?L-1diethylamine-0. 0015mol ?L-1 EDTA. The peak potential is about -0. 64V(vs. SCE). The concentration of carbon disulfide is linear with peak current in the of carbon disulfide is linear with peak current in the rang 1. 00×10-3mol ?L-1 to 3. OO×10-5mol ?L-1. The limit of detection for the determination of carbon disulfide is 1. 00×10-8 mol ?L-1. This method has been employed in the determina-tion of carbon disulfide in the atmosphere and be obtained successful results.

关 键 词：二硫化碳 导数示波极谱 大气 

分 类 号：X831[环境科学与工程—环境工程]