On-Line Solid Phase Extraction and Hplc Determination of Phthalic Acid Monoesters by Desorption with Subcritical Water
The possibility of on-line solid phase extraction and HPLC determination of phthalic acid monoesters is demonstrated. Hybrid procedure includes solid phase extrcation of phthalates from 10 ml of water sample on porous graphitic sorbent Hypercarb, desorption with subcritical water at 150°C, focusing of the analytes at the initial part of the HPLC column and separation with water-acetonitrile mixture.