被动采样器设计方法及应用效果研究  

Design methods and application of passive samplers

作　　者：杜正健 莫金汉[1] 李欣笑[1] 徐秋健[1] 

机构地区：[1]清华大学

出　　处：《暖通空调》2013年第12期51-58,共8页Heating Ventilating & Air Conditioning

基　　金：国家自然科学基金资助项目(编号:51136002;51006057);国家"十二五"科技支撑计划项目(编号:2012BAJ02B07)

摘　　要：介绍了被动采样器的工作原理,指出最常使用的简化模型在指导采样器设计上的局限性。以被动采样器暴露量测试误差最小为优化目标,结合被动采样器传质模型,提出了被动采样器反问题优化设计方法。依据该方法研发的被动采样器THPDS性能优良,与现有众多商业采样器相比有一定优势。总结了徽章式、管式轴向和管式径向3种被动采样器的结构特点。分析了环境因素对被动采样器性能的影响。Presents the principle of passive samplers. Points out the limitations of the simplified model commonly used to guide the design of passive samplers. Combined with the model covering the mass transfer process, establishes an inverse problem optimization method for passive sampler design for minimizing the error of exposure measurement. Based on the design method, develops a passive sampler （THPDS） with satisfactory performance, whose uncertainty of field test is smaller than most existing commercial samplers. Summarizes the characteristics of badge-, tube-axial-, and tube-radial-type samplers, and analyses the effects of the environmental factors on the performance of passive samplers.

关 键 词：被动采样器 挥发性有机化合物 反问题优化 吸附量 采样速率 不确定度 

分 类 号：X831[环境科学与工程—环境工程]