Chromatographic Separations in Pharmaceutical Analytical Chemistry

• Relative boiling points of the components
• Relative molecular weights of the components
• Relative attraction of components to the stationary and mobile phases (correct)
• Relative concentration of components in the mixture

• Column chromatography uses a flat surface and capillary action, while planar chromatography involves a narrow column and gravity or pressure for mobile phase flow
• Column chromatography uses a gas mobile phase, while planar chromatography uses a liquid mobile phase
• Column chromatography involves a narrow column and gravity or pressure for mobile phase flow, while planar chromatography uses a flat surface and capillary action for mobile phase movement (correct)
• Column chromatography involves a liquid stationary phase, while planar chromatography uses a solid stationary phase

• By listing the type of stationary phase followed by the type of mobile phase
• By using numerical codes to represent the types of phases
• By naming them after their inventors
• By listing the type of mobile phase followed by the type of stationary phase (correct)

<p>PMC205 (C)</p> Signup and view all the answers

<p>Mobile phase: liquid or gas; Stationary phase: solid or liquid film coated on a solid substrate (A)</p> Signup and view all the answers