Gas Purge and Trap的意思|示意

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。