The fibres were replaced at regular intervals over the course of seven days and taken away for analysis by a device called a gas chromatograph-mass spectrometer.
在七天的实验里，每隔一定时间就要更换一次纤维，然后用一种叫做气相色谱质谱联用仪的装置提取以供分析。
2
A homemade miniature aerosol mass spectrometer was reported, which can rapidly monitor gas composition and aerosol size distribution in vehicle exhaust.
我们研制了一台能够在线监测气溶胶粒径分布和气体组成成分的气溶胶在线质谱仪。
3
Method The fatty oil from Carum carvi L was extracted by ligarine petrum and analyzed by capillary gas chromatograph mass spectrometer(GC-MS) method.