About

It is widely used in various fields such as pharmaceuticals, environmental analysis, forensics, and petrochemical industries. The basic principle of GC involves the separation of a sample mixture into individual components using a stationary phase and a mobile phase. The stationary phase is typically a high boiling point liquid coated on a solid support, while the mobile phase is an inert carrier gas. As the sample is vaporized and injected into the GC system, it passes through the column where the compounds are separated based on their affinity for the stationary phase and their volatility. The separated compounds are then detected and quantified using a detector such as flame ionization detector (FID), thermal conductivity detector (TCD), or mass spectrometer (MS). GC offers high separation efficiency, speed, and sensitivity, making it a versatile analytical tool for a wide range of applications.