HPLC A gradient elution in HPLC is one in which the composition of the solvent None of these remains constant both (a) and (b) is changed continuously or in a series of steps None of these remains constant both (a) and (b) is changed continuously or in a series of steps ANSWER DOWNLOAD EXAMIANS APP
HPLC Which of the following(s) is/are the advantage of HPLC over traditional LPLC (low-pressure liquid chromatography)? Greater sensitivity and reusable columns Sample recovery All of these Ideal for ionic species and large molecules Greater sensitivity and reusable columns Sample recovery All of these Ideal for ionic species and large molecules ANSWER DOWNLOAD EXAMIANS APP
HPLC In normal phase HPLC, there is a any of the above non polar solvent/non-polar column non polar solvent/polar column polar solvent/non-polar column any of the above non polar solvent/non-polar column non polar solvent/polar column polar solvent/non-polar column ANSWER DOWNLOAD EXAMIANS APP
HPLC An isocratic elution in HPLC is one in which the composition of the solvent none of these changes continuously changes in a series of steps remains constant none of these changes continuously changes in a series of steps remains constant ANSWER DOWNLOAD EXAMIANS APP
HPLC For a typical adsorbent such as silica gel, the most popular pore diameters are 100 and 150 A° 10 and 50 A° 150 and 200 A° 60 and 100 A° 100 and 150 A° 10 and 50 A° 150 and 200 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 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 directly related to the square of the peak width ANSWER DOWNLOAD EXAMIANS APP
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