HPLC
Void volume refers to the

total volume of eluent in the column the remainder being taken up by the packing material
the time required for the gradient to reach the column
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

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HPLC
HPLC stands for

Highly Placed Liquid Chromatography
High Performance Liquid Chromatography
High Pressure Liquid Chromatography
both (a) and (b)

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HPLC
Dwell volume is defined as

none of these
the time required for the gradient to reach the column
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

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HPLC
An eluotropic series

ranks solvents by their relative abilities to displace solutes from a given absorbent
None of these
ranks column packing material by their relative abilities to retain solutes on the column
is a measure of the solvent adsorption energy

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HPLC
HPLC methods include

liquid/solid (adsorption) chromatography
ion exchange and size exclusion chromatography
All of these
liquid/liquid (partition) chromatography

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