HPLC QUIZ

None of these

ranks solvents by their relative abilities to displace solutes from a given absorbent

is a measure of the solvent adsorption energy

ranks column packing material by their relative abilities to retain solutes on the column

Greater sensitivity and reusable columns

All of these

Sample recovery

Ideal for ionic species and large molecules

60 and 100 A°

150 and 200 A°

100 and 150 A°

10 and 50 A°

directly related to the square of the peak width

inversely related to the cube root of the peak width

directly related to the square of the peak width

inversely related to the square of the peak width

remains constant

changes in a series of steps

none of these

changes continuously

liquid/solid (adsorption) chromatography

ion exchange and size exclusion chromatography

All of these

liquid/liquid (partition) chromatography

High Pressure Liquid Chromatography

Highly Placed Liquid Chromatography

High Performance Liquid Chromatography

both (a) and (b)

total volume of eluent in the column the remainder being taken up by the packing material

the volume of the column between the point at which solvents are mixed and the beginning of the column

the volume of solvent contained in a liquid chromatographic column

the time required for the gradient to reach the column

Any compound with non-solubility in liquid

Any compound with limited solubility in liquid

Any compound with solubility in liquid

Any of the above

solvent mixing index

solvent absorption energy

solvent diffusivity

solvent adsorption energy