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