HPLC A gradient elution in HPLC is one in which the composition of the solvent is changed continuously or in a series of steps both (a) and (b) None of these remains constant is changed continuously or in a series of steps both (a) and (b) None of these remains constant ANSWER DOWNLOAD EXAMIANS APP
HPLC Column efficiency is measured in terms of number of plates which is inversely related to the square of the peak width directly 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 inversely related to the square of the peak width directly 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 The eluent strength is a measure of solvent adsorption energy solvent diffusivity solvent absorption energy solvent mixing index solvent adsorption energy solvent diffusivity solvent absorption energy solvent mixing index ANSWER DOWNLOAD EXAMIANS APP
HPLC In normal phase HPLC, there is a 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 any of the above ANSWER DOWNLOAD EXAMIANS APP
HPLC For a typical adsorbent such as silica gel, the most popular pore diameters are 60 and 100 A° 150 and 200 A° 100 and 150 A° 10 and 50 A° 60 and 100 A° 150 and 200 A° 100 and 150 A° 10 and 50 A° ANSWER DOWNLOAD EXAMIANS APP
HPLC An isocratic elution in HPLC is one in which the composition of the solvent none of these changes continuously changes in a series of steps remains constant none of these changes continuously changes in a series of steps remains constant ANSWER DOWNLOAD EXAMIANS APP
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