by Dr. Yashashwini Reddy | Apr 17, 2025
1. What is GC-MS and how does it work? Answer: GC-MS combines gas chromatography (GC) for separation of compounds and mass spectrometry (MS) for identification and quantification. The sample is vaporized, separated by GC based on volatility, then ionized in the MS and...
by Dr. Yashashwini Reddy | Apr 16, 2025
1. What is the basic principle of UV spectroscopy? UV spectroscopy is based on the absorption of ultraviolet (UV) and visible light by molecules. When a molecule absorbs light in the UV-visible range (typically 200-800 nm), electrons in the molecule are excited from a...
by Dr. Yashashwini Reddy | Apr 16, 2025
What is Gas Chromatography and how does it work? Gas Chromatography (GC) is an analytical technique used to separate and analyze compounds that can be vaporized without decomposition. In GC, a sample is injected into a heated injection port, where it is vaporized. The...
