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 An isocratic elution in HPLC is one in which the composition of the solvent changes in a series of steps changes continuously none of these remains constant changes in a series of steps changes continuously none of these remains constant ANSWER DOWNLOAD EXAMIANS APP
HPLC The eluent strength is a measure of solvent mixing index solvent adsorption energy solvent diffusivity solvent absorption energy solvent mixing index solvent adsorption energy solvent diffusivity solvent absorption energy ANSWER DOWNLOAD EXAMIANS APP
HPLC HPLC methods include liquid/liquid (partition) chromatography All of these 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 ANSWER DOWNLOAD EXAMIANS APP
HPLC For a typical adsorbent such as silica gel, the most popular pore diameters are 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° 10 and 50 A° ANSWER DOWNLOAD EXAMIANS APP
HPLC A gradient elution in HPLC is one in which the composition of the solvent 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 None of these ANSWER DOWNLOAD EXAMIANS APP
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