Gas Chromatography Which of the following is not used for detection in GC? Electrical conductivity Flame ionisation NMR Infrared spectroscopy Electrical conductivity Flame ionisation NMR Infrared spectroscopy ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Split injection is carried out by splitting off some of the sample so that it does not enter the column splitting the sample into smaller portions to inject sequentially None of these splitting the sample into smaller portions to inject at the same time through parallel ports splitting off some of the sample so that it does not enter the column splitting the sample into smaller portions to inject sequentially None of these splitting the sample into smaller portions to inject at the same time through parallel ports ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Derivatisation of a sample is carried out to increase volatility of the analytes reduce polarity of the analytes increase the detector response All of these increase volatility of the analytes reduce polarity of the analytes increase the detector response All of these 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 elution of the analyte is extended over time traces of the stationary phase are eluted the column is cracked and stationary phase leaks out the column breaks during installation and causes personal injury elution of the analyte is extended over time traces of the stationary phase are eluted 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 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 prevent backflush of the injected solution retain contaminants and prevent them from reaching the column ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Which of these effects result from slow injection of a large sample volume? Non-linear detector response Decreased resolution Increased resolution Constant resolution Non-linear detector response Decreased resolution Increased resolution Constant resolution ANSWER DOWNLOAD EXAMIANS APP
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