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) remains constant None of these is changed continuously or in a series of steps both (a) and (b) remains constant None of these ANSWER DOWNLOAD EXAMIANS APP
HPLC Dwell volume is defined as the time required for the gradient to reach the column the volume of the column between the point at which solvents are mixed and the beginning of the column none of these the volume of solvent contained in a liquid chromatographic column the time required for the gradient to reach the column the volume of the column between the point at which solvents are mixed and the beginning of the column none of these the volume of solvent contained in a liquid chromatographic column 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 none of these remains constant changes in a series of steps changes continuously none of these remains constant ANSWER DOWNLOAD EXAMIANS APP
HPLC The eluent strength is a measure of solvent adsorption energy solvent diffusivity solvent mixing index solvent absorption energy solvent adsorption energy solvent diffusivity solvent mixing index solvent absorption 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 Void volume refers to the the time required for the gradient to reach the column the volume of the column between the point at which solvents are mixed and the beginning of the column total volume of eluent in the column the remainder being taken up by the packing material the volume of solvent contained in a liquid chromatographic column the time required for the gradient to reach the column the volume of the column between the point at which solvents are mixed and the beginning of the column total volume of eluent in the column the remainder being taken up by the packing material the volume of solvent contained in a liquid chromatographic column ANSWER DOWNLOAD EXAMIANS APP
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