Determination of uranium in water samples with chromogenic reagent 4-(2-thiazolylazo) resorcinol after ionic liquid based dispersive liquid liquid microextraction
Abstract
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).
Source
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRYVolume
309Issue
2Collections
- Makale Koleksiyonu [5200]
- Makale Koleksiyonu [5745]
- Öksüz Yayınlar Koleksiyonu - WoS [6162]
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