NDLI: Ionic liquid modified silica sorbent for simultaneous separation and preconcentration of heavy metals from water and tobacco samples prior to their determination by flame atomic absorption spectrometry

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Analytical Methods Vol - 4 Issue - 8

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Analytical Methods Vol -1

Ionic liquid modified silica sorbent for simultaneous separation and preconcentration of heavy metals from water and tobacco samples prior to their determination by flame atomic absorption spectrometry

Content Provider	Royal Society of Chemistry (RSC)
Author	Gharehbaghi, Maysam Shemirani, Farzaneh
Copyright Year	2012
Abstract	A new simple, fast, efficient and reusable ionic liquid-based solid phase extraction (IL-SPE) was developed and applied for simultaneous extraction/preconcentration of Cd(II), Co(II), Mn(II), Ni(II) and Pb(II) from water and cigarette tobacco samples as a prior step to their determination by flame atomic absorption spectrometry using micro-sample introduction system (micro-FAAS). In this method, a small amount of [BMIM][PF6] (1-butyl-3-methylimidazolium hexafluorophosphate) was used as a surface modifier of silica substrate. A mini-column packed with the silica-supported ionic liquid sorbent (SiO2–IL) was applied for simultaneous extraction of the metal ions mentioned above, which were complexed with 1-(2-pyridylazo)-2-naphthol (PAN) in the conditioned sample solution. This SiO2–IL system, that employs a hybrid combination of ionic liquid extractive properties and supporting nature of the silica, contributed to increase extraction efficiency via ameliorating mass transfer yield.
Starting Page	2879
Ending Page	2886
Page Count	8
File Format	HTM / HTML PDF
ISSN	17599660
Volume Number	4
Issue Number	9
Journal	Analytical Methods
DOI	10.1039/c2ay25171j
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Absorption spectroscopy Solid phase extraction 1-Butyl-3-methylimidazolium hexafluorophosphate Adsorption Lead Naphthol Silicon dioxide Ionic liquid
Content Type	Text
Resource Type	Article
Subject	Analytical Chemistry Engineering Chemical Engineering

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Ionic liquid modified silica sorbent for simultaneous separation and preconcentration of heavy metals from water and tobacco samples prior to their determination by flame atomic absorption spectrometry

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