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Selen - Bestimmung von Selen und seinen anorganischen Verbindungen in der Luft am Arbeitsplatz mittels Atomabsorptionsspektroskopie (AAS) [Air Monitoring Methods in German language, 2019]


Göen, T; Pitzke, K; Hebisch, R; Hartwig, A; MAK Commission; Arand, Michael; et al (2019). Selen - Bestimmung von Selen und seinen anorganischen Verbindungen in der Luft am Arbeitsplatz mittels Atomabsorptionsspektroskopie (AAS) [Air Monitoring Methods in German language, 2019]. The MAK Collection for Occupational Health and Safety, 4(3):1699-1712.

Abstract

This analytical method is a validated measurement procedure for the determination of selenium [7782‐49‐2]and its inorganic compounds in workplace air in a concentration range of one tenth up to twice the currently valid OEL of 0.05 mg/m3 E. Sampling is performed by drawing a defined volume of air through a membrane filter using a suitable pump. The flow rate ist set to 1.4 L/min and sampling is performed over 2 h. The dust deposited on the membrane filter is treated with acid and then analysed using atomic absorption spectrometry with the graphite furnace technique (GFAAS). The quantitative determination is based on a calibration function, whereat the selenium concentration of the reference standard is plotted against the peak area calculated with an integration program. The limit of quantification is 0.0004 mg/m3 based on an air sample volume of 168 L. The mean recovery was 113.9% and the expanded uncertainty for a validation range of 0.01 mg/m3 to 1.0 mg/m3 was between 27% and 22%.

Abstract

This analytical method is a validated measurement procedure for the determination of selenium [7782‐49‐2]and its inorganic compounds in workplace air in a concentration range of one tenth up to twice the currently valid OEL of 0.05 mg/m3 E. Sampling is performed by drawing a defined volume of air through a membrane filter using a suitable pump. The flow rate ist set to 1.4 L/min and sampling is performed over 2 h. The dust deposited on the membrane filter is treated with acid and then analysed using atomic absorption spectrometry with the graphite furnace technique (GFAAS). The quantitative determination is based on a calibration function, whereat the selenium concentration of the reference standard is plotted against the peak area calculated with an integration program. The limit of quantification is 0.0004 mg/m3 based on an air sample volume of 168 L. The mean recovery was 113.9% and the expanded uncertainty for a validation range of 0.01 mg/m3 to 1.0 mg/m3 was between 27% and 22%.

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Additional indexing

Other titles:Selenium – Method for the determination of selenium and its inorganic compounds in workplace air using atomic absorption spectroscopy (AAS)
Item Type:Journal Article, not_refereed, original work
Communities & Collections:04 Faculty of Medicine > Institute of Pharmacology and Toxicology
07 Faculty of Science > Institute of Pharmacology and Toxicology
Dewey Decimal Classification:570 Life sciences; biology
610 Medicine & health
Language:German
Date:25 July 2019
Deposited On:21 Nov 2019 15:43
Last Modified:05 Dec 2019 08:11
Publisher:Wiley-VCH Verlag
ISSN:2509-2383
ISBN:9783527600410
OA Status:Closed
Publisher DOI:https://doi.org/10.1002/3527600418.am778249verd0020

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