Gas Chromatography Which of the following detectors give concentration-dependent signals? Thermal conductivity Electron-capture detector Infra-red detector All of these Thermal conductivity Electron-capture detector Infra-red detector All of these ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Which of the following is not used for detection in GC? Infrared spectroscopy NMR Electrical conductivity Flame ionisation Infrared spectroscopy NMR Electrical conductivity Flame ionisation ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Helium is generally preferred as carrier gas over nitrogen and hydrogen because it doubles up as a party gas for balloons and funny voices it has a lower viscosity it is inert all of above it doubles up as a party gas for balloons and funny voices it has a lower viscosity it is inert all of above ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography A retention gap is placed between the injector and the front of the column to prevent backflush of the injected solution retain contaminants and prevent them from reaching the column retain the sample and release it gradually to the column All of these prevent backflush of the injected solution retain contaminants and prevent them from reaching the column retain the sample and release it gradually to the column All of these ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography What are the benefits of decreasing the column internal diameter? Reduced risk of column overloading Increased sample capacity All of these Increased resolution Reduced risk of column overloading Increased sample capacity All of these Increased resolution ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Which of these effects result from slow injection of a large sample volume? Increased resolution Non-linear detector response Decreased resolution Constant resolution Increased resolution Non-linear detector response Decreased resolution Constant resolution ANSWER DOWNLOAD EXAMIANS APP
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