Gas Chromatography Which of the following is not used for detection in GC? Electrical conductivity NMR Infrared spectroscopy Flame ionisation Electrical conductivity NMR Infrared spectroscopy Flame ionisation ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Column bleeding occurs when the column is cracked and stationary phase leaks out the column breaks during installation and causes personal injury traces of the stationary phase are eluted elution of the analyte is extended over time the column is cracked and stationary phase leaks out the column breaks during installation and causes personal injury traces of the stationary phase are eluted elution of the analyte is extended over time ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography A retention gap is placed between the injector and the front of the column to retain the sample and release it gradually to the column prevent backflush of the injected solution All of these retain contaminants and prevent them from reaching the column retain the sample and release it gradually to the column prevent backflush of the injected solution All of these retain contaminants and prevent them from reaching the column ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Theoretical plates are used to estimate the efficiency of a column None of these measure the distribution of the analyte between mobile and stationary phases determine the thickness of the stationary phase estimate the efficiency of a column None of these measure the distribution of the analyte between mobile and stationary phases determine the thickness of the stationary phase ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Sample retention in the column is measured by retention index retention time retention factor all of these retention index retention time retention factor all of these ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Which of the following detectors give concentration-dependent signals? Infra-red detector Thermal conductivity Electron-capture detector All of these Infra-red detector Thermal conductivity Electron-capture detector All of these ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS