HPLC Column efficiency is measured in terms of number of plates which is 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 inversely related to the square of the peak width ANSWER DOWNLOAD EXAMIANS APP
HPLC HPLC methods include liquid/solid (adsorption) chromatography ion exchange and size exclusion chromatography liquid/liquid (partition) chromatography All of these liquid/solid (adsorption) chromatography ion exchange and size exclusion chromatography liquid/liquid (partition) chromatography All of these 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 can only be used for isocratic elutions It is more sensitive than a UV detector none of above It does not respond to many solutes It can only be used for isocratic elutions It is more sensitive than a UV detector ANSWER DOWNLOAD EXAMIANS APP
HPLC The eluent strength is a measure of solvent absorption energy solvent adsorption energy solvent mixing index solvent diffusivity solvent absorption energy solvent adsorption energy solvent mixing index solvent diffusivity ANSWER DOWNLOAD EXAMIANS APP
HPLC Dwell volume is defined as none of these the volume of the column between the point at which solvents are mixed and the beginning of the column the time required for the gradient to reach the column the volume of solvent contained in a liquid chromatographic column none of these the volume of the column between the point at which solvents are mixed and the beginning of the column 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 10 and 50 A° 100 and 150 A° 60 and 100 A° 150 and 200 A° 10 and 50 A° 100 and 150 A° 60 and 100 A° 150 and 200 A° ANSWER DOWNLOAD EXAMIANS APP
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