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MCQ on HPLC: Page-1

The interface used in HPLC-MS is
Light pipe

(A) R,S

(B) P,Q

(C) Q,R

(D) P,S

The most widely use pumps in HPLC are

(A) Syringe type pumps

(B) Constant pressure pumps

(C) Reciprocating piston type pumps

(D) All of the above

The optimum particle size in the HPLC analytical column is
0.2 mm

(A) S

(B) R

(C) Q

(D) P

The derivitization reagent used for detection of alcohols, amines and phenols is

(A) 4-Nitrobenzyloxyamine hydrochloride

(B) 3,5-Dinitrobenzoyl chloride

(C) O-4-Nitrobezyl-N,N’-diisopropylisourea

(D) 4-Nitrobenzyl-n-propylamine hydrochloride

In post column derivitization can be done by

(A) Adjusting pH to alkaline

(B) Adjusting pH to acidic

(C) Using an acid or alkaline buffer

(D) All of the above