HPLC Which of the following(s) is/are the advantage of HPLC over traditional LPLC (low-pressure liquid chromatography)? Sample recovery Ideal for ionic species and large molecules Greater sensitivity and reusable columns All of these Sample recovery Ideal for ionic species and large molecules Greater sensitivity and reusable columns All of these ANSWER DOWNLOAD EXAMIANS APP
HPLC For a typical adsorbent such as silica gel, the most popular pore diameters are 60 and 100 A° 10 and 50 A° 150 and 200 A° 100 and 150 A° 60 and 100 A° 10 and 50 A° 150 and 200 A° 100 and 150 A° ANSWER DOWNLOAD EXAMIANS APP
HPLC HPLC stands for both (a) and (b) High Pressure Liquid Chromatography Highly Placed Liquid Chromatography High Performance Liquid Chromatography both (a) and (b) High Pressure Liquid Chromatography Highly Placed Liquid Chromatography High Performance Liquid Chromatography ANSWER DOWNLOAD EXAMIANS APP
HPLC An eluotropic series None of these is a measure of the solvent adsorption energy 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 None of these is a measure of the solvent adsorption energy 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 Which of the following statements is true for a refractive index detector in HPLC? 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 It is more sensitive than a UV detector ANSWER DOWNLOAD EXAMIANS APP
HPLC Column efficiency is measured in terms of number of plates which is inversely related to the square 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 cube root of the peak width inversely related to the square 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 cube root of the peak width ANSWER DOWNLOAD EXAMIANS APP
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