HPLC A gradient elution in HPLC is one in which the composition of the solvent 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 None of these remains constant ANSWER DOWNLOAD EXAMIANS APP
HPLC Which can be used as a mobile phase in HPLC applications? Any of the above Any compound with non-solubility in liquid Any compound with limited solubility in liquid Any compound with solubility in liquid Any of the above Any compound with non-solubility in liquid Any compound with limited solubility in liquid Any compound with solubility in liquid ANSWER DOWNLOAD EXAMIANS APP
HPLC In reversed phase HPLC, there is a non polar solvent/non-polar column non polar solvent/polar column polar solvent/non-polar column any of the above non polar solvent/non-polar column non polar solvent/polar column polar solvent/non-polar column any of the above ANSWER DOWNLOAD EXAMIANS APP
HPLC Void volume refers to the the time required for the gradient to reach 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 volume of the column between the point at which solvents are mixed and the beginning of the column the time required for the gradient to reach 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 volume of the column between the point at which solvents are mixed and the beginning of the 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 Dwell volume is defined as the volume of the column between the point at which solvents are mixed and the beginning of the column none of these the time required for the gradient to reach the column the volume of solvent contained in a liquid chromatographic column the volume of the column between the point at which solvents are mixed and the beginning of the column none of these the time required for the gradient to reach the column the volume of solvent contained in a liquid chromatographic column ANSWER DOWNLOAD EXAMIANS APP
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