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

• Authors: Panayot Petrov , Jožica Serafimovska , Sonja Arpadjan , Dimiter Tsalev , Trajče Stafilov
• Languages of publication: EN

Abstracts

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%. [...]

Keywords

EN

Arsenic; Hydride generation atomic absorption spectrometr; Soil and sediment extracts; EDTA

• Publisher: De Gruyter Open
• Journal: Open Chemistry
• Year: 2008
• Volume: 6
• Issue: 2
• Pages: 216-221

Dates

published

1 - 6 - 2008

online

17 - 4 - 2008

Contributors

author

Panayot Petrov

• Faculty of Chemistry, University of Sofia, 1 James Bourchier Blvd., Sofia, 1164, Bulgaria

author

Jožica Serafimovska

• Institute of Chemistry, Faculty of Science, Sts. Cyril and Methodius University, POB 162, MK-1000, Skopje, Republic of Macedonia

author

Sonja Arpadjan

• Faculty of Chemistry, University of Sofia, 1 James Bourchier Blvd., Sofia, 1164, Bulgaria

author

Dimiter Tsalev

• Faculty of Chemistry, University of Sofia, 1 James Bourchier Blvd., Sofia, 1164, Bulgaria

author

Trajče Stafilov

• Institute of Chemistry, Faculty of Science, Sts. Cyril and Methodius University, POB 162, MK-1000, Skopje, Republic of Macedonia

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Identifiers

DOI

10.2478/s11532-008-0006-7