Determination of uranium in water samples with chromogenic reagent 4-(2-thiazolylazo) resorcinol after ionic liquid based dispersive liquid liquid microextraction


BAĞDA E. , TÜZEN M.

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, cilt.309, ss.453-459, 2016 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 309 Konu: 2
  • Basım Tarihi: 2016
  • Doi Numarası: 10.1007/s10967-015-4645-9
  • Dergi Adı: JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
  • Sayfa Sayıları: ss.453-459

Özet

A simple extraction and spectrophotometric determination of trace amount of uranium was described. The method is based on complex formation between uranium and 4-(2-thiazolylazo)resorcinol (TAR), a well known ligand, C9H7N3O2S, and preconcentration of formed complex into a room temperature ionic liquid (RTIL), 1-methyl-3-octylimidazolium hexafluorophosphate. Under optimum conditions, the method is linear in the range of 7.14-1429 A mu g L-1, and 3S (b)/m value was calculated as 0.26 A mu g L-1. The method was applied to uranium spiked water samples. To the best of knowledge, the use of TAR as chromogenic agent with 1-methyl-3-octylimidazolium hexafluorophosphate as extractive medium is the first for the versatile determination of uranium. The accuracy of the method was confirmed with certified reference material (TM 28.3 fortified water).