Determination of pKa Values of Some Auxins in Methanol-Water Mixtures by Reversed Phase Liquid Chromatography and Potentiometric Methods

نویسندگان

  • Mustafa Kelen
  • Nurullah Sanli
چکیده

Os hormônios das plantas são de vital importância para o seu funcionamento normal. As auxinas são uma classe de fito-hormônios envolvidas em muitos aspectos do crescimento. Os ácidos indol3-acético (IAA), indol-3-pirúvico (IPA) e indol-3-lático (ILA) são auxinas com funções biológicas estimulantes do processo de crescimento, tais como elongação e divisão. Neste estudo, os valores pK a de IAA, IPA e ILA em misturas de metanol-água a 30%, 40% e 50% (v/v) foram determinados usando potenciometria, cromatografia líquida (LC) e metodologia LC-DAD. Valores de pK a em água, preditos pelo método SPARC também foram investigados.

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تاریخ انتشار 2008