Arsenic Speciation in Drinking Tea Samples by Hydride Generation Atomic Fluorescence Spectrometry
نویسندگان
چکیده
منابع مشابه
Arsenic speciation in beverages by direct injection-ion chromatography hydride generation atomic fluorescence spectrometry
This paper reports the advantages of coupling strong anion exchange high-performance liquid chromatography hydride generation and atomic fluorescence spectrometry for the speciation of four arsenic species in wine and mineral water. The procedure developed allows the direct speciation of arsenic in these samples with good sensitivity, selectivity, precision and accuracy. Detection limits determ...
متن کامل[Speciation analysis of arsenic in traditional Chinese medicines by hydride generation-atomic fluorescence spectrometry with ion exchange resin separation].
A method for the determination of arsenic species (arsenide, arsenate) in traditional Chinese medicines using hydride generation atomic fluorescence spectrometry (HG-AFS) with ion exchange resin separation has been studied. The ion exchange resin was used to separate the arsenide and arsenate, and the separation conditions were investigated. The experimental conditions that influence the fluore...
متن کاملArsenic speciation by hydride generation-Quartz furnace atomic absorption spectrometry. Optimization of analytical parameters and application to environmental samples
Analytical parameters of hydride generation, trapping, gas chromatography and atomic absorption spectrometry detection in a quartz cell furnace (HG/GC/QFAAS) device have been optimized in order to develop an efficient and sensitive method for arsenic compounds speciation. Good performances were obtained with absolute detection limits in the range of 0.1 – 0.5 ng for arsenite, arsenate, monometh...
متن کاملRedox speciation analysis of antimony in soil extracts by hydride generation atomic fluorescence spectrometry
A sensitive atomic spectrometric method for the redox speciation analysis of antimony in soils is described. The method is based on the selective generation of stibine from Sb(III) in a continuous flow system using atomic fluorescence spectrometry for detection. Sb(V) is masked by citric or oxalic acid in HCl medium. The procedure was optimized with synthetic solutions of Sb(III) and Sb(V). The...
متن کاملSimultaneous determination of trace cadmium and arsenic in biological samples by hydride generation-double channel atomic fluorescence spectrometry.
Hydride generation atomic fluorescence spectrometry (HG-AFS) has been used for determination of hydride-forming elements because of its high sensitivity, simplicity, and low costs, but most of such work has been concentrated on single element analysis, and reports dealing with multielement determination by HG-nondispersive (ND)AFS are rare. In this work, a sensitive HG-NDAFS method was develope...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Asian Journal of Chemistry
سال: 2013
ISSN: 0970-7077,0975-427X
DOI: 10.14233/ajchem.2013.15437