HPLC For a typical adsorbent such as silica gel, the most popular pore diameters are 10 and 50 A° 100 and 150 A° 150 and 200 A° 60 and 100 A° 10 and 50 A° 100 and 150 A° 150 and 200 A° 60 and 100 A° ANSWER DOWNLOAD EXAMIANS APP
HPLC Which of the following(s) is/are the advantage of HPLC over traditional LPLC (low-pressure liquid chromatography)? 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 Ideal for ionic species and large molecules ANSWER DOWNLOAD EXAMIANS APP
HPLC An eluotropic series is a measure of the solvent adsorption energy None of these ranks solvents by their relative abilities to displace solutes from a given absorbent ranks column packing material by their relative abilities to retain solutes on the column is a measure of the solvent adsorption energy None of these ranks solvents by their relative abilities to displace solutes from a given absorbent ranks column packing material by their relative abilities to retain solutes on the column ANSWER DOWNLOAD EXAMIANS APP
HPLC Dwell volume is defined as 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 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 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) remains constant is changed continuously or in a series of steps None of these both (a) and (b) remains constant is changed continuously or in a series of steps ANSWER DOWNLOAD EXAMIANS APP
HPLC Void volume refers to the 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 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 ANSWER DOWNLOAD EXAMIANS APP
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