Simultaneous determination of Cr(III) and Cr(VI) using differential pulse polarography and application to Gerede River
TURKISH JOURNAL OF CHEMISTRY, cilt.36, sa.2, ss.335-346, 2012 (SCI-Expanded, Scopus, TRDizin)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 36 Sayı: 2
- Basım Tarihi: 2012
- Doi Numarası: 10.3906/kim-1103-42
- Dergi Adı: TURKISH JOURNAL OF CHEMISTRY
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, TR DİZİN (ULAKBİM)
- Sayfa Sayıları: ss.335-346
- Gazi Üniversitesi Adresli: Evet
Özet
Determination of Cr(III) in the presence of Cr(VI) from one polarogram is not easy. No such procedure was found in the literature. In polarographic studies Cr(III) had a peak only in acidic medium, while Cr(VI) had either 1 or 2 peaks in both acidic and basic solutions. In solutions that contain these 2 ions, the peak obtained in acidic medium for Cr(III) will be the sum of both ions. Thus, Cr(III) cannot be determined directly from one polarogram.