Determination of 4,4'-methylenedianiline in hydrolysed human urine using liquid chromatography with UV detection and peak identification by absorbance ratio.

Abstract

A liquid chromatographic method using multi-wavelength UV detection (258 and 285 nm) is presented for the determination of 4,4'-methylenedianiline (MDA) in hydrolysed human urine. The method is based on hydrolysis under strongly acidic conditions followed by derivatization with pentafluoropropionic anhydride. The perfluoro fatty acid amide derivative formed… (More)

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