Determination of pKa Values of Some Auxins in Methanol-Water Mixtures by Reversed Phase Liquid Chromatography and Potentiometric Methods
JOURNAL OF THE BRAZILIAN CHEMICAL SOCIETY, cilt.20, sa.1, ss.133-140, 2009 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 20 Sayı: 1
- Basım Tarihi: 2009
- Doi Numarası: 10.1590/s0103-50532009000100021
- Dergi Adı: JOURNAL OF THE BRAZILIAN CHEMICAL SOCIETY
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.133-140
- Açık Arşiv Koleksiyonu: AVESİS Açık Erişim Koleksiyonu
- Süleyman Demirel Üniversitesi Adresli: Evet
Özet
Plant hormones are of vital importance for the normal functioning of plants. Auxins are a class of phytohormones involved in many aspects of plant growth. Indole-3-acetic acid, (IAA), indole-3-pyruvic acid (IPA) and indole-3-lactic acid (ILA) are auxins with biological functions stimulating growth processes such as cell elongation and division. In this study, the pK(a) values of IAA, IPA and ILA in 30%, 40% and 50% (v/v) methanol-water mixtures were determined using potentiometry, liquid chromatography (LC) and LC-DAD methodology. Also, the pK(a) values in water predicted by the SPARC on-line calculator have been investigated.