Gas Chromatography Column bleeding occurs when 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 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 ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Which of the following gases is unsuitable for use as a GC carrier gas? Nitrogen All of these Oxygen Helium Nitrogen All of these Oxygen Helium ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Split injection is carried out by splitting the sample into smaller portions to inject sequentially splitting the sample into smaller portions to inject at the same time through parallel ports None of these splitting off some of the sample so that it does not enter the column splitting the sample into smaller portions to inject sequentially splitting the sample into smaller portions to inject at the same time through parallel ports None of these splitting off some of the sample so that it does not enter the column ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography What is the typical internal diameter of fused silica capillary columns? 0.5-1.0 mm 0.2-0.3 mm 0.3-0.5mm 1.0-2.0 mm 0.5-1.0 mm 0.2-0.3 mm 0.3-0.5mm 1.0-2.0 mm ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Doubling the column's length increases resolution by a factor of 2 3 4 (2)0.5 2 3 4 (2)0.5 ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography What does the retention factor, k', describe? The migration rate of an analyte through a column The distribution of an analyte between the stationary and the mobile phase The velocity of the mobile phase All of these The migration rate of an analyte through a column The distribution of an analyte between the stationary and the mobile phase The velocity of the mobile phase All of these ANSWER DOWNLOAD EXAMIANS APP
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