Gas Chromatography Sample retention in the column is measured by retention index retention factor all of these retention time retention index retention factor all of these retention time ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography What does the selectivity factor describe? None of these The relative separation achieved between two species The maximum number of different species which a column can separate simultaneously The proportional difference in widths of two chromatographic peaks None of these The relative separation achieved between two species The maximum number of different species which a column can separate simultaneously The proportional difference in widths of two chromatographic peaks ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Which of the statements is correct? Gas chromatography is used to analyse gases, solutions and solids Gas chromatography is used to analyse solids Gas chromatography is used to analyse gases All of these Gas chromatography is used to analyse gases, solutions and solids Gas chromatography is used to analyse solids Gas chromatography is used to analyse gases All of these ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Sample injection is considered successful if the sample is concentrated at the start of 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 spread evenly along the column the sample is concentrated at the start of 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 spread evenly along the column ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography What are the benefits of decreasing the column internal diameter? Increased sample capacity All of these Increased resolution Reduced risk of column overloading Increased sample capacity All of these Increased resolution Reduced risk of column overloading ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Derivatisation of a sample is carried out to increase the detector response increase volatility of the analytes reduce polarity of the analytes All of these increase the detector response increase volatility of the analytes reduce polarity of the analytes All of these ANSWER DOWNLOAD EXAMIANS APP
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