Modeling of acidic and complexation properties of humic acids using the Irwing Rossotti method
Yazarlar (6)
Prof. Dr. Pelin BARAN Yalova Üniversitesi, Türkiye
Doç. Dr. Şeyda KORKMAZ Yalova Üniversitesi, Türkiye
Beril Anilanmert
İstanbul Tıp Fakültesi, Türkiye
Prof. Dr. Ahmet Tutar Sakarya Üniversitesi, Türkiye
Prof. Dr. Fehime Jülide HIZAL YÜCESOY Yalova Üniversitesi, Türkiye
Resat Apak
İstanbul University-Cerrahpaşa Cerrahpaşa Faculty of Medicine, Türkiye
Makale Türü Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
Dergi Adı Fresenius Environmental Bulletin (Q4)
Dergi ISSN 1018-4619 Dergi Bilgileri (2015)
Dergi Tarandığı Indeksler SCI-Expanded
Makale Dili İngilizce Basım Tarihi 01-2015
Cilt / Sayı / Sayfa 24 / 12 / 4743–4750 DOI –
UAK Araştırma Alanları
Analitik Kimya
Özet
In this study, acidic and metal complexation properties of five humic acid samples, obtained from different source, were investigated. Humic acid samples were extracted with 1 M NaOH solution and then precipitated using concentrated HCl. Thus, purified humic acid samples were used in neutralization and Cu(TJ) complexation experiments. Purity of the humic acid samples varies between 75-85 %. Structural analysis of purified humic acid samples were performed by using F1R, SEM and LC-MS methods. Molecular weights of them were determined by the aid of LC-MS method. Distribution coefficients (Kd) of humic acid samples in convenient solvent were also investigated and calculated. The data gained as a result of Potentiometrie titration were evaluated in Irwing-Rossotti method. Thus, acidity constants of-COOH and-OH groups, that can release proton, and formation constants of Cu(II)-humate complexes were determined. All experiments were performed at 2 °C and 25 °C. Consequently, distribution of humic acids between solid and liquid phases, mechanism of surface protonation and metal-humate complexation are introduced through this study.
Anahtar Kelimeler
Acid-base properties | Humic substances | Metal complexation | Proton binding | Thermodynamic properties
BM Sürdürülebilir Kalkınma Amaçları
Atıf Sayıları
Web of Science 2
Scopus 3