Puffing and trapping technique was used in the sample pretreatment.
2
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。
The method utilized purge-and-trap to concentrate benzene in beverages, gas chromatography and mass spectrometry(GC-MS) was used to determine benzene .
3
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。
Aroma components in durian were obtained by solvent extraction, purge and trap technique separately, and analyzed by GC-MS.
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