Gas Chromatography The GC trace obtained after an experiment is called a chromatograph chromatogram chromatophore graph chromatograph chromatogram chromatophore graph ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Which of the following detectors give mass flow-dependent signals? Thermal conductivity detector All of these Electron capture detector Field ionisation detector Thermal conductivity detector All of these Electron capture detector Field ionisation detector ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Which of the following gases is unsuitable for use as a GC carrier gas? Helium Nitrogen All of these Oxygen Helium Nitrogen All of these Oxygen ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography A retention gap is placed between the injector and the front of the column to 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 All of these retain the sample and release it gradually to the column ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Sample injection is considered successful if all of the sample in the injector has been added to the column the sample is concentrated at the start of the column the sample is homogenously spread along 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 concentrated at the start of the column the sample is homogenously spread along the column the sample is spread evenly along the column 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
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