Gas Chromatography Column bleeding occurs when 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 the column is cracked and stationary phase leaks out the column breaks during installation and causes personal injury ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Derivatisation of a sample is carried out to All of these increase volatility of the analytes increase the detector response reduce polarity of the analytes All of these increase volatility of the analytes increase the detector response reduce polarity of the analytes ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Which of the following gases is unsuitable for use as a GC carrier gas? Oxygen Nitrogen Helium All of these Oxygen Nitrogen Helium All of these ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography What are the benefits of decreasing the column internal diameter? All of these Increased sample capacity Increased resolution Reduced risk of column overloading All of these Increased sample capacity Increased resolution Reduced risk of column overloading ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography A retention gap is placed between the injector and the front of the column to All of these retain the sample and release it gradually to the column retain contaminants and prevent them from reaching the column prevent backflush of the injected solution All of these retain the sample and release it gradually to the column retain contaminants and prevent them from reaching the column prevent backflush of the injected solution ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Sample injection is considered successful if 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 the sample is concentrated at the start of the column all of the sample in the injector has been added to the column ANSWER DOWNLOAD EXAMIANS APP
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