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 can only be used for isocratic elutions It does not respond to many solutes none of above It is more sensitive than a UV detector It can only be used for isocratic elutions It does not respond to many solutes ANSWER DOWNLOAD EXAMIANS APP
HPLC An eluotropic series is a measure of the solvent adsorption energy None of these 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 is a measure of the solvent adsorption energy None of these 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 ANSWER DOWNLOAD EXAMIANS APP
HPLC A gradient elution in HPLC is one in which the composition of the solvent both (a) and (b) 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 ANSWER DOWNLOAD EXAMIANS APP
HPLC The eluent strength is a measure of solvent mixing index solvent absorption energy solvent diffusivity solvent adsorption energy solvent mixing index solvent absorption energy solvent diffusivity solvent adsorption energy ANSWER DOWNLOAD EXAMIANS APP
HPLC For a typical adsorbent such as silica gel, the most popular pore diameters are 10 and 50 A° 60 and 100 A° 100 and 150 A° 150 and 200 A° 10 and 50 A° 60 and 100 A° 100 and 150 A° 150 and 200 A° ANSWER DOWNLOAD EXAMIANS APP
HPLC An isocratic elution in HPLC is one in which the composition of the solvent remains constant changes in a series of steps changes continuously none of these remains constant changes in a series of steps changes continuously none of these ANSWER DOWNLOAD EXAMIANS APP