Gas Chromatography Helium is generally preferred as carrier gas over nitrogen and hydrogen because it doubles up as a party gas for balloons and funny voices it is inert all of above it has a lower viscosity it doubles up as a party gas for balloons and funny voices it is inert all of above it has a lower viscosity ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Sample injection is considered successful if the sample is concentrated at the start of 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 homogenously spread along the column the sample is concentrated at the start of 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 homogenously spread along the column ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography The column is heated to control elution of the different analytes reduce band broadening to get sharper peaks prevent analyte condensation within the column all of these control elution of the different analytes reduce band broadening to get sharper peaks prevent analyte condensation within the column all of these ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Column bleeding occurs when the column breaks during installation and causes personal injury the column is cracked and stationary phase leaks out elution of the analyte is extended over time traces of the stationary phase are eluted the column breaks during installation and causes personal injury the column is cracked and stationary phase leaks out elution of the analyte is extended over time traces of the stationary phase are eluted ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Derivatisation of a sample is carried out to increase volatility of the analytes increase the detector response All of these reduce polarity of the analytes increase volatility of the analytes increase the detector response All of these reduce polarity of the analytes ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Doubling the column's length increases resolution by a factor of 3 2 (2)0.5 4 3 2 (2)0.5 4 ANSWER DOWNLOAD EXAMIANS APP
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