HPLC
Which of the following(s) is/are the advantage of HPLC over traditional LPLC (low-pressure liquid chromatography)?

Sample recovery
Ideal for ionic species and large molecules
Greater sensitivity and reusable columns
All of these

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HPLC
HPLC stands for

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

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HPLC
Void volume refers to the

the volume of the column between the point at which solvents are mixed and the beginning of the column
the time required for the gradient to reach the column
total volume of eluent in the column the remainder being taken up by the packing material
the volume of solvent contained in a liquid chromatographic column

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HPLC
An eluotropic series

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

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