HPLC
Which of the following statements is true for a refractive index detector in HPLC?

none of above
It can only be used for isocratic elutions
It does not respond to many solutes
It is more sensitive than a UV detector

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HPLC
HPLC stands for

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

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HPLC
Dwell volume is defined as

the volume of the column between the point at which solvents are mixed and the beginning of the column
none of these
the time required for the gradient to reach the column
the volume of solvent contained in a liquid chromatographic column

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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
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
the time required for the gradient to reach the column

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