____________________ columns are used with____________________ chromatography.
A)Wall-coated open tubular;gas-solid
B)Porous-layer open tubular;liquid-solid
C)Wall-coated open tubular;liquid-liquid
D)Porous-layer open tubular;liquid-liquid
E)Wall-coated open tubular;liquid-solid

Question

Quizplus · Accepted Answer

Porous-layer open tubular (PLOT) columns are used with liquid-solid chromatography. With this type of column, the stationary phase is a thin layer of solid particles coated onto the inner surface of the column. The mobile phase is a liquid that is passed through the column under pressure. PLOT columns are known for their high efficiency and separations of high-boiling, non-volatile compounds, which makes them a good choice for certain applications, such as gas chromatography of fatty acids or isomer separation of volatile compounds in the petrochemical industry. Wall-coated open tubular (WCOT) columns are mainly used in gas chromatography, but they can also be used in liquid-liquid chromatography.

____________________ Columns Are Used With____________________ Chromatography

Columns Are Used With Chromatography