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CISDOC database

Document ID (ISN)112185
CIS number 11-0845
ISSN - Serial title 1545-9624 - Journal of Occupational and Environmental Hygiene
Year 2009
Convention or series no.
Author(s) Goldcamp M.J., Goldcamp D.M., Ashley K., Fernback J.E., Agrawal A., Millson M., Marlow D., Harrison K.
Title Extraction of beryllium from refractory beryllium oxide with dilute ammonium bifluoride and determination by fluorescence: A multiparameter performance evaluation
Bibliographic information Dec. 2009, Vol.6, No.10, p.735-744. Illus. 22 ref.
Internet access Extraction_of_beryllium.pdf [in English]
Abstract Beryllium exposure can cause a number of deleterious health effects, including beryllium sensitization and the potentially fatal chronic beryllium disease. Efficient methods for monitoring beryllium contamination in workplaces are valuable to help prevent dangerous exposures to this element. In this work, performance data on the extraction of beryllium from various size fractions of high-fired beryllium oxide (BeO) particles (from <32 μm up to 212 μm) using dilute aqueous ammonium bifluoride (ABF) solution were obtained under various conditions. Beryllium concentrations were determined by fluorescence using a hydroxybenzoquinoline fluorophore. The effects of ABF concentration and volume, extraction temperature, sample tube types, and presence of filter or wipe media were examined. Findings are discussed.
Descriptors (primary) beryllium oxide; sampling and analysis; description of technique
Descriptors (secondary) solvent extraction; detector tubes; detection by fluorescence
Document type D - Periodical articles
Subject(s) Toxic and dangerous substances
Broad subject area(s) Chemical safety
Browse category(ies) Diseases of the respiratory system (except for pneumoconiosis & similar)
Exposure evaluation