Now showing items 1-3 of 3

    • Bioanalytical studies of porphyric disorders using HPLC with fluorescence detection 

      Cypriani, Michele Gotelipe de Souza Corrêa [UNIFESP]; Alves, Atecla Nunciata Lopes [UNIFESP]; Bechara, Etelvino José Henriques [UNIFESP]; Assunção, Nilson Antonio [UNIFESP] (Sociedade Brasileira de Química, 2014-10-01)
      We describe here the development, validation, quantification and application of a method for determination of heme porphyrin precursors in the urine of porphyric patients. The isomers coproporphyrinogen I and III (COPRO I ...
    • Electrospray ionization mass spectrometry applied to study the radical acetylation of amino acids, peptides and proteins 

      Alves, Atecla Nunciata Lopes [UNIFESP]; Jedlicka, Leticia Dias Lima [UNIFESP]; Massari, Júlio; Juliano, Maria Aparecida [UNIFESP]; Bechara, Etelvino José Henriques [UNIFESP]; Assunção, Nilson Antonio [UNIFESP] (Sociedade Brasileira de Química, 2013-12-01)
      Recently, our group proposed a process that generated acetyl radicals in a reaction medium buffered with a diacetyl/peroxynitrite system. Diacetyl is a flavoring agent in food, cigarettes and drinks. Peroxynitrite is found ...
    • Potential diagnostic of Branched-Chain Ketoaciduria by HPLC-DAD 

      Trintinalia, Maíra Magalhães [UNIFESP]; Alves, Atecla Nunciata Lopes [UNIFESP]; Fernandes, Liliam [UNIFESP]; Bechara, Etelvino José Henriques [UNIFESP]; Assunção, Nilson Antonio [UNIFESP] (Sociedade Brasileira de Química, 2014-10-01)
      A system of high performance liquid chromatography (HPLC) was used for the development and validation of efficient method for quantitative determination of three aminoacids involved in the inherited metabolic disease ...