14 Questions
What contributes to zone broadening in chromatography?
Longitudinal diffusion, resistance to mass transfer, multiple path effect
What does the band broadening due to longitudinal diffusion depend on?
Diffusion of the solute and the flow rate of the solute through the column
What does the formula $HL = \frac{L}{V} DM$ represent in chromatography?
Band broadening as a result of longitudinal diffusion
In which chromatography is longitudinal diffusion not very important except at low flow rates?
Liquid chromatography
What contributes to mass transfer diffusion in chromatography?
Mass transfer of solute in mobile or stationary phases
Which type of chromatography involves a stationary phase that is chemically & permanently held to a porous solid?
Bonded phase chromatography (BPC)
In which type of chromatography is the mobile phase a gas?
Gas chromatography (GC)
Which type of liquid chromatography has a stationary phase that is liquid held on a solid support as a thin coat?
Liquid liquid chromatography (LLC)
In which type of liquid chromatography is the stationary phase solid, porous with small particle size, and held in a column or spread on a plate?
Liquid solid chromatography (LSC)
What is the mobile phase in gas chromatography?
Gas
In which type of liquid chromatography is the stationary phase chemically & permanently held to a porous solid?
Bonded phase chromatography (BPC)
Which type of chromatography involves chromatographic separations taking place inside a column?
Column chromatography
What is the nature of the mobile phase in supercritical fluid chromatography (SFC)?
Supercritical fluid
What distinguishes liquid solid chromatography (LSC) from liquid liquid chromatography (LLC)?
Stationary phase is solid (porous with small particle size) held in column or spread on plate
Test your knowledge of rate theory and bond broadening with this quiz. Learn about factors affecting zone broadening and the behavior of molecules in solutes.
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