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
Gas Chromatography Derivatisation of a sample is carried out to increase the detector response reduce polarity of the analytes increase volatility of the analytes All of these increase the detector response reduce polarity of the analytes increase volatility of the analytes All of these ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography In column switching chromatography any of the above one column is removed and replaced by another the flow to the column is switched on and off repeatedly compounds trapped on one column are eluted to another column any of the above one column is removed and replaced by another the flow to the column is switched on and off repeatedly compounds trapped on one column are eluted to another column ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Doubling the column's length increases resolution by a factor of (2)0.5 3 4 2 (2)0.5 3 4 2 ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Which of the following detectors give concentration-dependent signals? Electron-capture detector All of these Infra-red detector Thermal conductivity Electron-capture detector All of these Infra-red detector Thermal conductivity ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Which of the following gases is unsuitable for use as a GC carrier gas? Nitrogen All of these Helium Oxygen Nitrogen All of these Helium Oxygen ANSWER DOWNLOAD EXAMIANS APP
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