HPLC Void volume refers to the 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 total volume of eluent in the column the remainder being taken up by the packing material 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 total volume of eluent in the column the remainder being taken up by the packing material the time required for the gradient to reach the column ANSWER DOWNLOAD EXAMIANS APP
HPLC Which can be used as a mobile phase in HPLC applications? Any compound with limited solubility in liquid Any compound with solubility in liquid Any compound with non-solubility in liquid Any of the above Any compound with limited solubility in liquid Any compound with solubility in liquid Any compound with non-solubility in liquid Any of the above ANSWER DOWNLOAD EXAMIANS APP
HPLC Which of the following(s) is/are the advantage of HPLC over traditional LPLC (low-pressure liquid chromatography)? Ideal for ionic species and large molecules All of these Sample recovery Greater sensitivity and reusable columns Ideal for ionic species and large molecules All of these Sample recovery Greater sensitivity and reusable columns ANSWER DOWNLOAD EXAMIANS APP
HPLC An eluotropic series ranks column packing material by their relative abilities to retain solutes on the column is a measure of the solvent adsorption energy ranks solvents by their relative abilities to displace solutes from a given absorbent None of these ranks column packing material by their relative abilities to retain solutes on the column is a measure of the solvent adsorption energy ranks solvents by their relative abilities to displace solutes from a given absorbent None of these ANSWER DOWNLOAD EXAMIANS APP
HPLC A gradient elution in HPLC is one in which the composition of the solvent is changed continuously or in a series of steps remains constant both (a) and (b) None of these is changed continuously or in a series of steps remains constant both (a) and (b) None of these ANSWER DOWNLOAD EXAMIANS APP
HPLC Column efficiency is measured in terms of number of plates which is inversely related to the cube root of the peak width directly related to the square of the peak width directly related to the square of the peak width inversely 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 directly related to the square of the peak width inversely related to the square of the peak width ANSWER DOWNLOAD EXAMIANS APP
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