HPLC

the time required for the gradient to reach the column

none of these

the volume of solvent contained in a liquid chromatographic column

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

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 of the above

non polar solvent/polar column

polar solvent/non-polar column

non polar solvent/non-polar column

All of these

Sample recovery

Greater sensitivity and reusable columns

Ideal for ionic species and large molecules

Any compound with solubility in liquid

Any compound with non-solubility in liquid

Any compound with limited solubility in liquid

Any of the above