They used gas chromatographic-massspectroscopic analysis to work out which particular gases were present, and in what concentrations.
收集来的气体先用色谱和质谱仪器分析其成分。
2
AIM: To apply the solid phase extraction (SPE) on salvianolic acids in Radix Salvia Miltiorrhizae by means of high performance liquid chromatography with massspectroscopic detector (HPLC MSn).
目的：研究丹参药材中丹酚酸类成分的固相萃取预富集方法。
3
The substance, which may have a role in fungal virulence, has been characterized mainly using spectroscopic methods (1H and 13C nuclear magnetic resonance and high resolution mass spectra).