动态顶空即通常所指的吹扫捕集(Purge and Trap),能实现VOC(pounds)的完全萃取,但是存在着样品起泡,交叉污染,清洗流速不易控制及不适合现场操作等缺点。
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常用的环境样品预处理技术有顶空法（HeadSpace，HS）、吹扫捕集法（Purge and Trap，PT）、液-液萃取（Liquid-LiquidExtractionLLE）、超临界流体苯取 （Super...
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Gas Purge and Trap 气体吹扫冷阱捕集法
purge-and-trap extraction 吹扫捕集提取
Eclipse Purge-and-Trap Sample concentrator 吹扫捕集样品浓缩
Purge-and-trap method with thermal desorption 热解析的净化和收集法
purge-and-trap 吹扫捕集
cryogenic purge and trap 低温吹扫捕集
purge and trap technique 吹洗和捕集
Aroma components in durian were obtained by solvent extraction, purge and trap technique separately, and analyzed by GC-MS.
报道了通过溶液萃取和吹扫-捕集，对榴莲的香气富集浓缩，并用GC - MS分析。
Volatile components from castrated and intact male rabbit meat were trapped using the improved nitrogen purge and trap(NPT)technique and were analysed by gas chromatography mass spectrometry(GC?MS).
应用改进的NPT技术提得去势公兔与正常公兔兔肉腥味物质，经气—质联谱比较分析，初步确定中级醛类是兔肉腥味物质的主导成分。
The method utilized purge-and-trap to concentrate benzene in beverages, gas chromatography and mass spectrometry(GC-MS) was used to determine benzene .
建立了饮料中痕量苯的检测方法，采用吹扫捕集浓缩饮料中的苯，使用气相色谱质谱检测器进行定性定量测定。
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