HPLC Which of the following(s) is/are the advantage of HPLC over traditional LPLC (low-pressure liquid chromatography)? Greater sensitivity and reusable columns Sample recovery All of these Ideal for ionic species and large molecules Greater sensitivity and reusable columns Sample recovery All of these Ideal for ionic species and large molecules ANSWER DOWNLOAD EXAMIANS APP
HPLC Which can be used as a mobile phase in HPLC applications? Any compound with solubility in liquid Any compound with non-solubility in liquid Any compound with limited solubility in liquid Any of the above Any compound with solubility in liquid Any compound with non-solubility in liquid Any compound with limited solubility in liquid Any of the above ANSWER DOWNLOAD EXAMIANS APP
HPLC The eluent strength is a measure of solvent absorption energy solvent diffusivity solvent adsorption energy solvent mixing index solvent absorption energy solvent diffusivity solvent adsorption energy solvent mixing index ANSWER DOWNLOAD EXAMIANS APP
HPLC In reversed phase HPLC, there is a any of the above 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 ANSWER DOWNLOAD EXAMIANS APP
HPLC A gradient elution in HPLC is one in which the composition of the solvent None of these both (a) and (b) is changed continuously or in a series of steps remains constant None of these both (a) and (b) is changed continuously or in a series of steps remains constant ANSWER DOWNLOAD EXAMIANS APP
HPLC Which of the following statements is true for a refractive index detector in HPLC? It can only be used for isocratic elutions none of above It is more sensitive than a UV detector It does not respond to many solutes It can only be used for isocratic elutions none of above It is more sensitive than a UV detector It does not respond to many solutes ANSWER DOWNLOAD EXAMIANS APP
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