Organic solvents as interferents in arsenic determination by hydride generation atomic absorption spectrometry with flame atomization

2006 ◽  
Vol 61 (5) ◽  
pp. 525-531 ◽  
Author(s):  
Irina B. Karadjova ◽  
Leonardo Lampugnani ◽  
Jiri Dědina ◽  
Alessandro D'Ulivo ◽  
Massimo Onor ◽  
...  
Keyword(s):  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Organic Solvents ◽  
Hydride Generation ◽  
Absorption Spectrometry ◽  
Arsenic Determination

scholarly journals Quantitative Determination of Arsenic in Bottled Drinking Water Using Atomic Absorption Spectroscopy

2013 ◽  
Vol 59 (5) ◽  
pp. 246-249
Author(s):  
Guţu Claudia Maria ◽  
Bălălău D ◽  
Ilie Mihaela ◽  
Purdel Carmen Nicoleta ◽  
Gubandru Miriana
Keyword(s):  
Drinking Water ◽  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Hydride Generation ◽  
Absorption Spectrometry ◽  
Additional Advantage ◽  
Bottled Drinking Water ◽  
Toxicological Studies ◽  
Inorganic Species ◽  
Arsenic Determination

Abstract Background: Many studies have been performed in the past few years, to determine arsenic speciation in drinking water, food chain and environment, arsenic being a well-recognized carcinogenic and toxic agent mainly in its inorganic species. The instrumental techniques used for arsenic determination, such as hydride generation atomic absorption spectrometry (HGAAS), graphite furnace atomic absorption spectrometry (GFAAS) and inductively coupled plasma mass spectrometry (ICP-MS), can provide a great sensitivity only on the total amount. Objective: The aim of this study was to develop a simple and rapid method and to analyze the concentration of total inorganic arsenic in bottled drinking water. Methods: Total arsenic was determined in samples from six different types of commercially available bottled drinking water using atomic absorption spectrometry with electrothermal or hydride generation vaporisation. All drinking water samples were acidified with 0.1M nitric acid to match the acidity of the standards. Results: The method was linear within the studied range (1-5 μg/L, R = 0.9943). The quantification limits for arsenic determination were 0.48 μg/L (HGAAS) and 0.03 μg/L (GFAAS). The evaluated arsenic content in drinking water was within the accepted limits provided by law. Conclusions: A simple and sensitive method for the quantification of arsenic in drinking water using atomic absorbtion spectroscopy was described, which can be further used in toxicological studies. As an additional advantage, the system is very fast, efficient and environmental friendly

scholarly journals Arsenic Determination in Certifiable Color Additives by Dry Ashing Followed by Hydride Generation Atomic Absorption Spectrometry

1999 ◽  
Vol 82 (2) ◽  
pp. 327-330 ◽  
Author(s):  
Nancy M Hepp
Keyword(s):  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Hydride Generation ◽  
Absorption Spectrometry ◽  
Injection System ◽  
Wet Digestion ◽  
Dry Ashing ◽  
Flow Injection System ◽  
Arsenic Determination

Abstract The preparations of digested samples of certifiable color additives by dry ashing and wet digestion for arsenic analysis by hydride generation atomic absorption spectrometry (AAS) were compared. The dry ashing technique was based on the preparation used in ASTM D4606-86 for determination of As and Se in coal. The acid digestion method used nitric and sulfuric acids heated by microwaves in sealed vessels. The digested color additives were analyzed for As by using hydride generated from sodium borohydride mixed with the acidified solution on a flow injection system leading to an atomic absorption spectrometer. Dry ashing was preferable to wet digestion because wet digestion yielded poor recoveries of added As. Dry ashing followed by hydride generation AAS gave determination limits of 0.5 ppm As in the color additives. At a specification level of 3 ppm As, the precision of the method using dry ashing was ± 0.4 ppm (95% confidence interval).

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