High Performance Liquid Chromatography (HPLC) Method for Analysis of Phthalic Acid on Primesep B by SIELC Technologies
Separation type: Liquid Chromatography Mixed-mode SIELC Technologies
High Performance Liquid Chromatography (HPLC) Method for Analysis of Phthalic Acid
Phthalic acid is an aromatic dicarboxylic acid with the chemical formula C₆H₄(CO₂H)₂. It consists of a benzene ring with two carboxylic acid groups (-COOH) attached to adjacent carbon atoms (in the ortho position). It is mainly produced by the oxidation of naphthalene or o-xylene.
Uses
Phthalic acid is primarily used as a precursor to other chemicals, including:
Phthalic anhydride: Used in the production of plasticizers for PVC (polyvinyl chloride).
Alkyd resins: Important in the manufacture of paints and coatings.
Dyes and pigments: Phthalic acid derivatives are often used in the production of dyes.
Phthalic Acid can be retained, separated and analyzed using a Primesep B mixed-mode stationary phase column. The analysis employs a gradient method with a simple mobile phase comprising water, acetonitrile (MeCN), and phosphoric acid as a buffer. This method allows for detection using UV 200 nm.
You can find detailed UV spectra of Phthalic Acid and information about its various lambda maxima by visiting the following link.
Column | Primesep B, 4.6 x 150 mm, 5 µm, 100 A |
Mobile Phase | MeCN/H2O – 30/70% |
Buffer | H2SO4 – 0.1% |
Flow Rate | 1.0 ml/min |
Detection | UV 200 nm |
Limit of Detection | 5 ppb |
Class of Compounds | Acid |
Analyzing Compounds | Phthalic Acid |
Application Column
Primesep B
Column Diameter: 4.6 mm
Column Length: 150 mm
Particle Size: 5 µm
Pore Size: 100 A