Development of a new green non dispersive ionic liquid microextraction method in a narrow glass column for determination of cadmium prior to couple with graphite furnace atomic absorption spectrometry      
Yazarlar (6)
Naeem Ullah
Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Tasneem Gul Kazi
University Of Sindh, Pakistan
Prof. Dr. Mustafa TÜZEN Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Faheem Shah
University Of Sindh, Pakistan
Hassan Imran Afridi
University Of Sindh, Pakistan
Prof. Dr. Demirhan ÇITAK Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale
Dergi Adı Analytica Chimica Acta
Dergi ISSN 0003-2670 Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler SCI-Expanded
Dergi Grubu Q4
Makale Dili İngilizce
Basım Tarihi 02-2014
Cilt No 812
Sayı 1
Sayfalar 59 / 64
DOI Numarası 10.1016/j.aca.2013.12.034
Makale Linki http://linkinghub.elsevier.com/retrieve/pii/S0003267013015833
Özet
Easy and innovative non-dispersive ionic liquid based microextraction (NDILME) has been developed for preconcentration of trace level of cadmium (Cd) in aqueous real surface water samples prior to couple with graphite furnace atomic absorption spectrometry (GFAAS). A 200cm long narrow glass column containing aqueous solution of standard/sample was used to increase phase transfer ratio by providing more contact area between two medium (aqueous and extractive), which drastically improve the recoveries of labile hydrophobic chelate of Cd ammonium pyrrolidinedithiocarbamate (APDC), into ionic liquid 1-butyl-3-methylimidazolium hexafluorophosphate [C4mim][PF6]. Different aspect of the desire method have been investigated and optimized. Under the optimized key experimental variables, limit of detection (LOD) and enhancement factor (EF) were achieved to be 0.5ngL-1 and 150, respectively. Reliability of the model method was checked by relative standard deviation (%RSD), which was found to be <5%. Validity and accuracy of the developed method was checked by analysis of certified reference water samples (SLRS-4 Riverine water) using standard addition method.Application of the model method was productively performed by analysis of Cd in real surface water samples (tap and sea). © 2013 Elsevier B.V.
Anahtar Kelimeler
Ammonium pyrrolidinedithiocarbamate | Cadmium | Graphite furnace atomic absorption spectrometry | Non dispersive ionic liquid microextraction