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大气中总挥发性有机硫化物检测方法的研究
引用本文:王艳君,郑晓玲,何鹰,张栋,王保栋.大气中总挥发性有机硫化物检测方法的研究[J].环境科学,2011,32(12):3617-3622.
作者姓名:王艳君  郑晓玲  何鹰  张栋  王保栋
作者单位:国家海洋局第一海洋研究所海洋生态研究中心,青岛,266061
基金项目:国家高技术研究发展计划(863)项目(2008AA09Z116)
摘    要:建立了一种捕集、解析、氧化、紫外荧光检测技术,用于大气中痕量总挥发性有机硫化物的检测.自行研制的低温捕集-热解析装置综合了固体阻留法和低温冷凝法的优点,应用于大气中痕量挥发性有机硫化物的富集,富集的有机硫化物在高温和助燃气作用下,充分氧化为二氧化硫,采用紫外荧光法检测二氧化硫含量,从而间接获得大气中总挥发性有机硫化物的浓度值.方法的捕集温度5℃,解析温度150℃,氧化温度1 000℃,精密度5.46%,回收率为99.6%~109.2%.利用该装置测定了2011年2~4月青岛大气中痕量总挥发性有机硫化物的含量为42~195 ng·m-3.

关 键 词:挥发性有机硫化物  二氧化硫  紫外荧光  捕集  解析
收稿时间:2011/5/10 0:00:00
修稿时间:2011/7/10 0:00:00

Research on Determination of Total Volatile Organic Sulfur Compounds in the Atmosphere
WANG Yan-jun,ZHENG Xiao-ling,HE Ying,ZHANG Dong and WANG Bao-dong.Research on Determination of Total Volatile Organic Sulfur Compounds in the Atmosphere[J].Chinese Journal of Environmental Science,2011,32(12):3617-3622.
Authors:WANG Yan-jun  ZHENG Xiao-ling  HE Ying  ZHANG Dong and WANG Bao-dong
Institution:Marine Ecology Research Center, State Oceanic Administration, First Institute of Oceanography, Qingdao 266061, China;Marine Ecology Research Center, State Oceanic Administration, First Institute of Oceanography, Qingdao 266061, China;Marine Ecology Research Center, State Oceanic Administration, First Institute of Oceanography, Qingdao 266061, China;Marine Ecology Research Center, State Oceanic Administration, First Institute of Oceanography, Qingdao 266061, China;Marine Ecology Research Center, State Oceanic Administration, First Institute of Oceanography, Qingdao 266061, China
Abstract:A detection technology was established comprising trap,desorption,oxidation and UV fluorescence determination process,and used for the test of total concentration of trace volatile sulfur compounds(VSCs) in the atmosphere.A cryogenic trap-thermal desorption device was developed,integrating the advantages of solid retention method and cryogenic condensation method,which was applied to capture and enrich trace volatile organic sulfur compounds.Under high temperature and combustion-supporting gas,the VSCs were...
Keywords:volatile sulfur compounds  sulfur dioxide  ultraviolet fluorescence  trapping  desorption
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