HPLC Separation of Carboxylic Acids


HPLC separation of carboxylic acids (nicotinic acid, benzoic acid and acetylbenzoic acid) on Primesep B2 column using an isocratic method by reverse-phase and anion-exchange mechanisms. The elution of carboxylic acids using the same isocratic method and mobile phase can be reversed by using a reverse-phase cation-exchange mechanisms of the Primesep 100 column. The mobile phase is water, acetonitrile (MeCN, ACN) and formic acid with a UV detector.

Condition

Column Primesep B2, 4.6x150 mm, 5 µm, 100A
Mobile Phase MeCN/H2O
Buffer Formic Acid
Flow Rate 1.0 ml/min
Detection UV, 250 nm
 

Description

Class of Compounds Acid, Hydrophilic
Analyzing Compounds Nicotinic acid, Benzoic acid, Acetylbenzoic acid, Maleic acid
 

Application Analytes:

Acetylbenzoic Acid
Benzoic Acid
Nicotinic Acid