HPLC In normal phase HPLC, there is a polar solvent/non-polar column non polar solvent/polar column any of the above non polar solvent/non-polar column polar solvent/non-polar column non polar solvent/polar column any of the above non polar solvent/non-polar column ANSWER DOWNLOAD EXAMIANS APP
HPLC In reversed phase HPLC, there is a polar solvent/non-polar column non polar solvent/non-polar column any of the above non polar solvent/polar column polar solvent/non-polar column non polar solvent/non-polar column any of the above non polar solvent/polar column ANSWER DOWNLOAD EXAMIANS APP
HPLC HPLC methods include ion exchange and size exclusion chromatography liquid/liquid (partition) chromatography All of these liquid/solid (adsorption) chromatography ion exchange and size exclusion chromatography liquid/liquid (partition) chromatography All of these liquid/solid (adsorption) chromatography ANSWER DOWNLOAD EXAMIANS APP
HPLC An eluotropic series 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 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 None of these is a measure of the solvent adsorption energy ANSWER DOWNLOAD EXAMIANS APP
HPLC Column efficiency is measured in terms of number of plates which is directly related to the square of the peak width inversely 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 directly related to the square of the peak width inversely 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 ANSWER DOWNLOAD EXAMIANS APP
HPLC Which of the following statements is true for a refractive index detector in HPLC? It does not respond to many solutes It can only be used for isocratic elutions It is more sensitive than a UV detector none of above It does not respond to many solutes It can only be used for isocratic elutions It is more sensitive than a UV detector none of above ANSWER DOWNLOAD EXAMIANS APP
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