导数示波极谱法测定大气中微量的二硫化碳

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 韦进宝 Wei Jinbao 1 2 first-author 唐智勇 Tang Zhiyong 1 2 张琳 Zhang Lin 1 2 卢大远 Lu Dayuan 1 2 武汉大学环境科学系 武汉大学环境科学系 Deparment of Environment Science,Wuhan University Deparment of Environment Science,Wuhan University 武汉市环境监测中心站,武汉,430072 武汉市环境监测中心站,武汉,430072 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. 二硫化碳 极谱分析 微量分析 carbon disulfide polargraphy trace analysis O657.11 1994-05-01 2021-04-01 5