Gas Chromatography Which of the following is not used for detection in GC? Electrical conductivity Flame ionisation Infrared spectroscopy NMR Electrical conductivity Flame ionisation Infrared spectroscopy NMR ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Derivatisation of a sample is carried out to increase the detector response increase volatility of the analytes All of these reduce polarity of the analytes increase the detector response increase volatility of the analytes All of these reduce polarity of the analytes ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Sample injection is considered successful if the sample is concentrated at the start of the column the sample is spread evenly along the column all of the sample in the injector has been added to the column the sample is homogenously spread along the column the sample is concentrated at the start of the column the sample is spread evenly along the column all of the sample in the injector has been added to the column the sample is homogenously spread along the column ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Which of the following detectors give mass flow-dependent signals? Thermal conductivity detector Field ionisation detector Electron capture detector All of these Thermal conductivity detector Field ionisation detector Electron capture detector All of these ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Doubling the column's length increases resolution by a factor of 2 3 4 (2)0.5 2 3 4 (2)0.5 ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Headspace analysis is carried out in order to determine non-volatiles analyse the column contents ahead of the sample determine the psychological state of the tutor analyse volatile compounds from solid or liquid samples determine non-volatiles analyse the column contents ahead of the sample determine the psychological state of the tutor analyse volatile compounds from solid or liquid samples ANSWER DOWNLOAD EXAMIANS APP
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