Pressure Assisted Ionic Liquid Dispersive Microextraction of Vanadium Coupled with Electrothermal Atomic Absorption Spectrometry     
Yazarlar (5)
Naeem Ullah
Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Prof. Dr. Mustafa TÜZEN Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Tasneem Gul Kazi
University Of Sindh, Pakistan
Prof. Dr. Demirhan ÇITAK Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Mustafa Soylak
Erciyes Üniversitesi, Türkiye
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale
Dergi Adı Journal of Analytical Atomic Spectrometry
Dergi ISSN 0267-9477 Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler SCI-Expanded
Dergi Grubu Q4
Makale Dili İngilizce
Basım Tarihi 01-2013
Cilt No 28
Sayı 9
Sayfalar 1441 / 1445
DOI Numarası 10.1039/c3ja50174d
Özet
A simple and new liquid-liquid dispersive microextraction termed pressure-assisted ionic liquid dispersive microextraction (PILDME) was developed for the concentration of trace levels of vanadium in real water samples followed by its quantification by graphite furnace atomic absorption spectrometry (GFAAS). We performed a pressure-induced dispersion of 1-butyl-3-methylimidazolium hexafluorophosphate [C4mim][PF 6] into the aqueous sample. Chloroform was used to decrease the dissolution and increase hydrophobicity of the ionic liquid to entrap vanadium in a labile hydrophobic chelate with 8-hydroxyqunioline (8-HQ). Several variables playing a vital role in the prescribed procedure were studied and optimized. With optimum experimental values of significant variables, the detection limit (LOD) and the enhancement factor (EF) were observed to be 20 ng L-1 and 100, respectively. The precision of the method was checked by detection of the relative standard deviation (RSD) as 4.5% at a vanadium concentration of 0.5 μg L-1. The validity and accuracy of the applied method were tested by vanadium extraction and quantification of the standard reference material "SLRS-4 Riverine water", and the results were found to be in good agreement with the certified values. The method was satisfactorily applied to real water samples. © 2013 The Royal Society of Chemistry.
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