NDLI: Assessment of arsenic, chromium, copper and manganese determination in thermal spring waters by electrothermal atomic absorption spectrometry using various chemical modifiers

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Analytical Methods Vol -4

Analytical Methods Vol -3

Analytical Methods Vol -2

Analytical Methods Vol -1

Assessment of arsenic, chromium, copper and manganese determination in thermal spring waters by electrothermal atomic absorption spectrometry using various chemical modifiers

Content Provider	Royal Society of Chemistry (RSC)
Author	Turker, Ali Rehber Acar, Orhan Kalfa, Orhan Murat Yalcinkaya, Ozcan
Copyright Year	2013
Abstract	Determination of total arsenic, chromium, copper and manganese in hot spring waters containing highly complex matrices and interferences by electrothermal atomic absorption spectrometry (ETAAS) was carried out in the presence of Ni, Pd, Ni + Pd and Ni + Pd + citric acid (CA) as chemical modifiers. Pyrolysis and atomization temperatures of analytes in sample and aqueous standard solutions, atomization and background profiles of analytes in sample solutions were obtained with and without modifiers and compared with each other. Effects of mass and mass ratio of modifiers were also studied. Limit of detection (LOD), limit of quantification (LOQ) and characteristic masses (mo) of analytes were found in the presence and absence of modifiers. Among the tested modifier mixtures, the Ni + Pd + CA modifier mixture was found to be preferable for the determination of analytes. The lowest LOD and mo values obtained with Ni + Pd + CA were 0.8 μg L−1 and 32 pg for As, 0.5 μg L−1 and 5.0 pg for Cr, 0.6 μg L−1 and 18 pg for Cu and 0.4 μg L−1 and 4 pg for Mn, respectively. The percent relative error found was below 5% for the determination of the analytes by the proposed method in the certified reference materials (CRMs) of water (Spsww-1 and 1643e). Arsenic in CRMs and sample solutions was also determined by hydride generation atomic absorption spectrometry (HGAAS) for the purpose of comparing with As results obtained by ETAAS. Results of analytes in sample solutions were compared with national and international water quality guidelines such as WHO and US EPA values, as well as literature data.
Starting Page	748
Ending Page	754
Page Count	7
File Format	HTM / HTML PDF
ISSN	17599660
Volume Number	5
Issue Number	3
Journal	Analytical Methods
DOI	10.1039/c2ay26291f
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Absorption spectroscopy International law Pyrolysis Acid Arsenic Cu ETAAS Chromium Approximation error Hydride Copper US Manganese
Content Type	Text
Resource Type	Article
Subject	Analytical Chemistry Engineering Chemical Engineering

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