HPLC An isocratic elution in HPLC is one in which the composition of the solvent changes in a series of steps none of these changes continuously remains constant changes in a series of steps none of these changes continuously remains constant ANSWER DOWNLOAD EXAMIANS APP
HPLC In reversed phase HPLC, there is a any of the above polar solvent/non-polar column non polar solvent/polar column non polar solvent/non-polar column any of the above polar solvent/non-polar column non polar solvent/polar column non polar solvent/non-polar column ANSWER DOWNLOAD EXAMIANS APP
HPLC Which of the following statements is true for a refractive index detector in HPLC? none of above It is more sensitive than a UV detector It does not respond to many solutes It can only be used for isocratic elutions none of above It is more sensitive than a UV detector It does not respond to many solutes It can only be used for isocratic elutions ANSWER DOWNLOAD EXAMIANS APP
HPLC A gradient elution in HPLC is one in which the composition of the solvent is changed continuously or in a series of steps None of these both (a) and (b) remains constant is changed continuously or in a series of steps None of these both (a) and (b) remains constant ANSWER DOWNLOAD EXAMIANS APP
HPLC An eluotropic series is a measure of the solvent adsorption energy ranks column packing material by their relative abilities to retain solutes on the column ranks solvents by their relative abilities to displace solutes from a given absorbent None of these is a measure of the solvent adsorption energy ranks column packing material by their relative abilities to retain solutes on the column ranks solvents by their relative abilities to displace solutes from a given absorbent None of these ANSWER DOWNLOAD EXAMIANS APP
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