NDLI: Room temperature ionic liquids and ammonium pyrrolidine dithiocarbamate synergetically enhanced the determination of zinc by chemical vapor generation coupled with flame atomic absorption spectrometry

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Room temperature ionic liquids and ammonium pyrrolidine dithiocarbamate synergetically enhanced the determination of zinc by chemical vapor generation coupled with flame atomic absorption spectrometry

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Analytical Methods Vol - 5 Issue - 5

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Analytical Methods Vol - 5 Issue - 3

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Room temperature ionic liquids and ammonium pyrrolidine dithiocarbamate synergetically enhanced the determination of zinc by chemical vapor generation coupled with flame atomic absorption spectrometry

Content Provider	Royal Society of Chemistry (RSC)
Author	Kong, Jinli Cui, Rongrong Li, Xiaoli Zeng, Chujie Zhou, Neng
Copyright Year	2013
Abstract	A new method for the determination of zinc based on the synergetic enhancement effect of room temperature ionic liquids (RTILs) and ammonium pyrrolidine dithiocarbamate (APDC) by chemical vapor generation (CVG) coupled with flame atomic absorption spectrometry (FAAS) was developed. RTILs and APDC were used as synergetic enhancement reagents. The addition of RTILs led to a 3.6 times improvement in the CVG efficiency of zinc. Zinc hydride was effectively generated with a 48% vapor generation efficiency (the CVG efficiency was calculated on the basis of the concentrations of zinc before and after CVG) by mixing the acidified analyte solutions with KBH4 in the presence of 0.02% (m/v) APDC and 0.1% (m/v) 1-butyl-3-methylimidazolium tetrafluoroborate ([C4MIM]BF4). Some parameters that influenced CVG and subsequent determination were evaluated in detail, such as the concentrations of RTILs, APDC, HNO3 and KBH4; flow rates of the carrier gas, lengths of the reaction tube and transfer tube, as well as interference from other elements. A detection of limit of 9 ng mL−1 and a relative standard deviation (RSD) of 5.7% at 400 ng mL−1 Zn(II) (n = 5) were obtained under optimal experimental conditions. The proposed method was successfully applied to the determination of zinc in real water samples and certified reference samples with satisfactory results.
Starting Page	1564
Ending Page	1569
Page Count	6
File Format	HTM / HTML PDF
ISSN	17599660
Volume Number	5
Issue Number	6
Journal	Analytical Methods
DOI	10.1039/c3ay26463g
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Absorption spectroscopy Analyte Ammonium Butyl group Coefficient of variation Zinc Nitric acid APDC CVG Tetrafluoroborate Dithiocarbamate Hydride Pyrrolidine
Content Type	Text
Resource Type	Article
Subject	Analytical Chemistry Engineering Chemical Engineering

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