Gas Chromatography Which of the following gases is unsuitable for use as a GC carrier gas? Helium All of these Oxygen Nitrogen Helium All of these Oxygen Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Headspace analysis is carried out in order to analyse volatile compounds from solid or liquid samples determine the psychological state of the tutor determine non-volatiles analyse the column contents ahead of the sample analyse volatile compounds from solid or liquid samples determine the psychological state of the tutor determine non-volatiles analyse the column contents ahead of the sample ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Column bleeding occurs when the column breaks during installation and causes personal injury traces of the stationary phase are eluted the column is cracked and stationary phase leaks out elution of the analyte is extended over time the column breaks during installation and causes personal injury traces of the stationary phase are eluted the column is cracked and stationary phase leaks out elution of the analyte is extended over time ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Which of the following detectors give concentration-dependent signals? Thermal conductivity All of these Electron-capture detector Infra-red detector Thermal conductivity All of these Electron-capture detector Infra-red detector ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography In column switching chromatography 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 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 ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Sample retention in the column is measured by retention index all of these retention factor retention time retention index all of these retention factor retention time ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS