The origin and characterization of soluble organic matter in the phosphate rock (Mardin-Mazidaǧi-Turkey)

NAKTİYOK J., Özer A. K., ÇELİK M., Gülaboǧlu M. Ş.

Journal of the Chemical Society of Pakistan, cilt.35, sa.4, ss.1138-1142, 2013 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 35 Sayı: 4
  • Basım Tarihi: 2013
  • Dergi Adı: Journal of the Chemical Society of Pakistan
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1138-1142
  • Anahtar Kelimeler: Even n-alkanes, Organic matter, Phosphate rock, Phospholipids, Surface sediment
  • Erzincan Binali Yıldırım Üniversitesi Adresli: Hayır

Özet

In this study, the origin and structure of the soluble organic matter in the phosphate rock was investigated. The organic matter was extracted with n-hexane from the phosphate rock. Its structure was analyzed by using TG, GC-MS, FTIR and NMR. GC-MS results showed that the organic matter had a complex structure and had a modal distribution ranging between C9 to C 35 and maximizes at C10 and C14. The presence of n-alkanes with even/odd carbon predominance indicates the intense microbial reworking of the organic matter taking place in this depositional environment. The Carbon Preference Index (CPI) was 0.71 in which major microbial sources exist. 1H NMR and 1C NMR spectra of the phosphate rock also confirmed these results. FTIR results showed that the bands obtained from organic matter exhibits a phospholipid characteristic which is a component only of living cells and, as such, a measure of viable biomass.