Gas Chromatograph-Electron Capture Detector(GC-ECD) Varine-3800
Gas Chromatography-Mass Spectrometry(GC-MS/MS) Varina Ms-4000
Gas Chromatography-Mass Spectrometry(GC-MS/MS) Varian Ms-320
Gas Chromatography–Mass Spectrometry(GC-MS/MS) Shimadzu TQ8050