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挥发性有机物中包含了较多致癌物质,对人体健康的主要影响是刺激眼睛和呼吸道,使皮肤过敏,产生头痛、咽痛和乏力.我国地表水环境质量不容乐观,地表水污染问题主要来源于工业废水和城镇生活污水的排放.现行国标GB 3838—2002《地表水环境质量标准》中对20多种挥发性有机物(VOCs)的限定值为0.6μg·L-1—1.0 mg·L-1不等.因此为了防止水污染,保护地表水水质,保障人体健康,维护良好的生态系统,需要进行挥发性有机物的检测和控制.目前,对环境水体中VOCs的分析有多种前处理方法,如静态顶空(HS)[1]、吹扫捕集(P&T)[2]、顶空固相微萃取(HS-SPME)[3]等等.顶
Volatile organic compounds contain more carcinogens, the main impact on human health is to stimulate the eyes and respiratory tract, skin allergies, headache, sore throat and fatigue.Our country’s surface water environmental quality is not optimistic, surface water pollution mainly comes from Industrial wastewater and urban domestic sewage.A limit of 20 kinds of volatile organic compounds (VOCs) in the current national standard GB 3838-2002 “Surface Water Environmental Quality Standard” is 0.6μg · L-1-1.0 mg · L-1 Therefore, in order to prevent water pollution, protect the quality of surface water, protect human health and maintain a good ecological system, it is necessary to detect and control volatile organic compounds.At present, there are many pretreatment methods for the analysis of VOCs in environmental water bodies, Such as static headspace [1], purge and trap (P & T) [2], headspace solid-phase microextraction (HS-SPME) [3]