Gas chromatograph GC-MS-3100

laboratoryFIDmass detector

Uses and Spécifications Chromatography enjoys a high position in toda/s analytical instruments. Qualitative analysis cannot be conducted with Chromatography alone, because its column has a highly efficient séparation capability based on the rétention time of the materials and then détermine the nature ofthe material through contrast with that ofthe samples. However, mass spectrometry can conduct direct détermination ofthe ratio ofthe mass to the charge ratio (m/z), which is accurate and fast. The combination of chromatography and mass spectrometry is actually using mass spectrometry as a universal detector. There are many detectors of chromatography, such as TCD, FID, ECD, FPD and NPD, etc., each detector has a limited scope of application, which is inconvénient. But as mass spectrometry is universal, it can replace ail the other detectors that brings convenience to users. Therefore, the combination of chromatography and mass spectrometry is a intégration ofthe high-efficient séparation ofthe chromatography and accurate identification ofthe mass spectrometry to unknown samples. This combination can be used whereverthat chromatography is applied. Thus it plays a crucial part amongthe entire analytic instrument. The chromatography and mass spectrometry instrument is a product that combines the technologies of chromatography, mass spectrometry and computer. Working Principle Vacuum chamber must be installed in the instrument to ensure the normal operation ofthe instrument. It adopts a double-level vacuum unit composed of a high-performance turbo-molecular pump and a fore vacuum pump.