Gas chromatography coupled with mass spectrometry (GC-MS) is an analytical method that uses mass spectrometry to identify test substances in a sample.
In contrast to LC-MS, the GC-MS technique has extensive compound databases that enable automatic identification of the analytes via the device.
The mass detector is a universal detector, more sensitive than FID, but also much more expensive to buy and operate.
Application:
In our laboratory, we use GC-MS for drug detection, terpene testing, environmental sample analysis, and the identification of unknown samples.