HPLC A gradient elution in HPLC is one in which the composition of the solvent remains constant 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) ANSWER DOWNLOAD EXAMIANS APP
HPLC HPLC methods include ion exchange and size exclusion chromatography All of these liquid/liquid (partition) chromatography liquid/solid (adsorption) chromatography ion exchange and size exclusion chromatography All of these liquid/liquid (partition) chromatography liquid/solid (adsorption) chromatography ANSWER DOWNLOAD EXAMIANS APP
HPLC An eluotropic series 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 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 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 The eluent strength is a measure of solvent adsorption energy solvent absorption energy solvent mixing index solvent diffusivity solvent adsorption energy solvent absorption energy solvent mixing index solvent diffusivity ANSWER DOWNLOAD EXAMIANS APP
HPLC An isocratic elution in HPLC is one in which the composition of the solvent changes in a series of steps changes continuously remains constant none of these changes in a series of steps changes continuously remains constant none of these ANSWER DOWNLOAD EXAMIANS APP
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