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- BookSindicatura General de Empresas Públicas, Area Cuerpo Técnico Profesional, Sector Recursos Humanos.Print [1989]
- ArticleMurray S, Baillie TA, Davies DS.J Chromatogr. 1977 Nov 01;143(6):541-51.A method is described for the quantitative analysis of (3-methoxy-4-sulphoxyphenyl)-ethylene glycol (MHPG sulphate) in human urine, based on selected ion monitoring gas chromatography--mass spectrometry and using a specifically deuterium-labelled analogue of MHPG sulphate as internal standard. The procedure involves extraction of the urine sample on Amberlite XAD-2, followed by isolation of MHPG sulphate by column chromatography on Sephadex LH-20. Cleavage of the sulphate conjugate and formation of the MHPG tris(trifluoroacetate) derivative are carried out in a one-step reaction, without recourse to enzymic hydrolysis.