Gas Chromatography -
Mass Spectrometry
About the GC-MS Facility
The Gas-Chromatography-Mass Spectrometry (GC-MS) facility has been funded by MKU-RUSA 2.0 under a research project entitled "Molecular Design and Development of Imaging Agents and Inhibitors: A Chemical Biology Approach" (007-R2/RUSA/MKU2020-2021). This facility was established in 2022. This GC-MS facility is available at Dept. of Natural Products Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai.
Gas-Chromatography-Mass Spectrometry
GC-MS is a highly-sensitive detection technique that forms, separates and detects ions in the gaseous phase. It can perform both quantitative and qualitative analyses. GC-MS separates and quantifies multi-component samples and complex matrices and can identify unknown compounds. Both FID and MS detectors can quantitate using the peak intensity or peak area and identify compounds using the retention time from the chromatograms. This is extremely valuable for the unique identification of molecules, also known as qualitative analysis.
Details of our GC-MS instrument
Manufacturer : Shimadzu
Model : GC-MS-QP2020 NX
Gas-Chromatography
Model: Nexis GC-2030
Oven temperature: Ambient +2 to 450°C
Sample injection: 350°C maximum unit temperature
Flow Control: Constant low, constant pressure, constant liner velocity
Injection Port Temperature: 350 °C maximum
Mass Spectrometer
GCMS Interface:
Type: Direct connection with capillary column
Temperature: 50 °C to 350 °C
Ion Source: Electron ionisation (EI)
Type: Front access for easy maintenance
Ionization: Electron ionisation (EI)
Mass Analyzer and Detector
Mass Analyzer: Metal quadrupole with pre-rod
Mass Range: m/z 1.5 to 1090
Detector: Electron multiplier with low noise overdrive lens 8 × 106 (dynamic range)
Carrier Gases: Helium, hydrogen, nitrogen
Software: Lab solution