HPLC In reversed phase HPLC, there is a any of the above non polar solvent/polar column polar solvent/non-polar column non polar solvent/non-polar column any of the above non polar solvent/polar column polar solvent/non-polar column non polar solvent/non-polar column ANSWER DOWNLOAD EXAMIANS APP
HPLC An eluotropic series None of these is a measure of the solvent adsorption energy ranks column packing material by their relative abilities to retain solutes on the column ranks solvents by their relative abilities to displace solutes from a given absorbent None of these is a measure of the solvent adsorption energy ranks column packing material by their relative abilities to retain solutes on the column ranks solvents by their relative abilities to displace solutes from a given absorbent 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 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 the volume of solvent contained in a liquid chromatographic column ANSWER DOWNLOAD EXAMIANS APP
HPLC For a typical adsorbent such as silica gel, the most popular pore diameters are 150 and 200 A° 100 and 150 A° 10 and 50 A° 60 and 100 A° 150 and 200 A° 100 and 150 A° 10 and 50 A° 60 and 100 A° ANSWER DOWNLOAD EXAMIANS APP
HPLC Column efficiency is measured in terms of number of plates which is 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 inversely related to the cube root of the peak width directly related to the square of the peak width ANSWER DOWNLOAD EXAMIANS APP
HPLC Which of the following statements is true for a refractive index detector in HPLC? none of above It does not respond to many solutes It is more sensitive than a UV detector It can only be used for isocratic elutions none of above It does not respond to many solutes It is more sensitive than a UV detector It can only be used for isocratic elutions ANSWER DOWNLOAD EXAMIANS APP
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