Answer :
Final answer:
Gas chromatography (GC) uses different detectors to analyze different types of analytes. Examples include Flame Ionization Detector (FID) for organic compounds, Thermal Conductivity Detector (TCD) for a wide range of analytes, and Electron Capture Detector (ECD) for electron-capturing compounds.
Explanation:
Gas chromatography (GC) is a technique used to separate and analyze the components of a mixture. Different detectors can be used in GC depending on the type of analyte being detected.
Some commonly used detectors in GC include:
- Flame Ionization Detector (FID): This detector is suitable for the analysis of organic compounds as it is highly sensitive and provides quantitative data. It operates by converting organic compounds into ions, which are then detected and measured.
- Thermal Conductivity Detector (TCD): TCD can be used to detect a wide range of analytes, including both organic and inorganic compounds. It works based on the principle that different analytes have different thermal conductivity properties, which can be measured.
- Electron Capture Detector (ECD): ECD is commonly used for the detection of electron-capturing compounds, such as halogenated hydrocarbons and pesticides. It operates by measuring the decrease in electrical current caused by the capture of electrons by the analyte.
These are just a few examples of the detectors that can be used in gas chromatography. The choice of detector depends on the specific analyte and the analytical requirements of the experiment.
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