Gas Chromatography Sample injection is considered successful if all of the sample in the injector has been added to the column the sample is spread evenly along the column the sample is concentrated at the start of the column the sample is homogenously spread along the column all of the sample in the injector has been added to the column the sample is spread evenly along the column the sample is concentrated at the start of the column the sample is homogenously spread along the column ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography A retention gap is placed between the injector and the front of the column to prevent backflush of the injected solution retain contaminants and prevent them from reaching the column All of these retain the sample and release it gradually to the column prevent backflush of the injected solution retain contaminants and prevent them from reaching the column All of these retain the sample and release it gradually to the column ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography In column switching chromatography the flow to the column is switched on and off repeatedly compounds trapped on one column are eluted to another column one column is removed and replaced by another any of the above the flow to the column is switched on and off repeatedly compounds trapped on one column are eluted to another column one column is removed and replaced by another any of the above ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography The column is heated to reduce band broadening to get sharper peaks all of these control elution of the different analytes prevent analyte condensation within the column reduce band broadening to get sharper peaks all of these control elution of the different analytes prevent analyte condensation within the column ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography What are the benefits of decreasing the column internal diameter? Reduced risk of column overloading All of these Increased resolution Increased sample capacity Reduced risk of column overloading All of these Increased resolution Increased sample capacity ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Helium is generally preferred as carrier gas over nitrogen and hydrogen because all of above it has a lower viscosity it is inert it doubles up as a party gas for balloons and funny voices all of above it has a lower viscosity it is inert it doubles up as a party gas for balloons and funny voices ANSWER DOWNLOAD EXAMIANS APP
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