HPLC Which of the following statements is true for a refractive index detector in HPLC? 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 none of above ANSWER DOWNLOAD EXAMIANS APP
HPLC An isocratic elution in HPLC is one in which the composition of the solvent remains constant changes continuously changes in a series of steps none of these remains constant changes continuously changes in a series of steps none of these ANSWER DOWNLOAD EXAMIANS APP
HPLC In reversed phase HPLC, there is a polar solvent/non-polar column non polar solvent/polar column any of the above non polar solvent/non-polar column polar solvent/non-polar column non polar solvent/polar column any of the above non polar solvent/non-polar column ANSWER DOWNLOAD EXAMIANS APP
HPLC Void volume refers to the 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 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 ANSWER DOWNLOAD EXAMIANS APP
HPLC Which can be used as a mobile phase in HPLC applications? Any compound with solubility in liquid Any of the above Any compound with limited solubility in liquid Any compound with non-solubility in liquid Any compound with solubility in liquid Any of the above Any compound with limited solubility in liquid Any compound with non-solubility in liquid ANSWER DOWNLOAD EXAMIANS APP
HPLC The eluent strength is a measure of solvent adsorption energy solvent mixing index solvent absorption energy solvent diffusivity solvent adsorption energy solvent mixing index solvent absorption energy solvent diffusivity ANSWER DOWNLOAD EXAMIANS APP
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