Gas chromatograph with Time of Flight (TOF) mass analyser
Standard ion source = EI (Electron ionization) got high sensitivity
CI (chemical ionization)
Mass separation with Time Of Flight analyzer
Micro channel plate detector (MCP)
Resolution R≧5,000 (FWHM)
Mass range 4 to 2000
Mass accuracy = highest value of 5 ppm or 2 mmu of internal standard.