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2008 | 6 | 2 | 216-221
Tytuł artykułu

Influence of EDTA, carboxylic acids, amino- and hydroxocarboxylic acids and monosaccharides on the generation of arsines in hydride generation atomic absorption spectrometry

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
The influence of EDTA, carboxylic acids, amino-and hydroxocarboxylic acids, monosaccharides and humic substances on the generation of arsines in hydride generation atomic absorption spectrometry (HGAAS) was investigated. EDTA (0.02 mol L−1), ascorbic acid (0.02 mol L−1) and glucose or fructose (0.2 mol L−1) are useful additives for levelling sensitivities for As(III), monomethylarsonate (MMA) and dimethylarsinate (DMA). The presence of glycine, malonic, tartaric acids, BICIN and soil humin extracts leads to differences in analytical signal response between these arsenic species. An analytical application to the determination of the sum of As(III), monomethylarsonate (MMA) and dimethylarsinate (DMA) as well as the sum of toxicologically relevant hydride forming arsenic fraction As(III) + As(V) + MMA + DMA in EDTA soil/sediment extracts using continuous flow HGAAS was demonstrated. The limit of detection was 0.2 mg kg−1 As. Within-day and between-day precision were in the range 3–7% and 4–10%, respectively, for arsenic contents of 0.7–25 mg kg−1, with recoveries 95–103%. [...]
Wydawca

Czasopismo
Rocznik
Tom
6
Numer
2
Strony
216-221
Opis fizyczny
Daty
wydano
2008-06-01
online
2008-04-17
Twórcy
  • Faculty of Chemistry, University of Sofia, 1 James Bourchier Blvd., Sofia, 1164, Bulgaria
  • Institute of Chemistry, Faculty of Science, Sts. Cyril and Methodius University, POB 162, MK-1000, Skopje, Republic of Macedonia
  • Faculty of Chemistry, University of Sofia, 1 James Bourchier Blvd., Sofia, 1164, Bulgaria
  • Faculty of Chemistry, University of Sofia, 1 James Bourchier Blvd., Sofia, 1164, Bulgaria
  • Institute of Chemistry, Faculty of Science, Sts. Cyril and Methodius University, POB 162, MK-1000, Skopje, Republic of Macedonia, trajcest@iunona.pmf.ukim.edu.mk
Bibliografia
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Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.-psjd-doi-10_2478_s11532-008-0006-7
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