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Effects of various treatments on the quantitative recovery of endotoxin from water-soluble metalworking fluids.

Authors
Brown-ME; White-EM; Feng-HA
Source
Am Ind Hyg Assoc J 2000 Jul/Aug; 61(4):517-520
NIOSHTIC No.
20020621
Abstract
Three extraction methods were compared for their effectiveness in the quantitative removal of endotoxin from unused and used bulk water-soluble metalworking fluid (MWF) samples. Soluble, synthetic, and semisynthetic fluids were studied. The three modes of extraction consisted of (1) pyrogen-free water (PFW); (2) PFW and Tween 20 (polyoxyethylene sorbitan monolaurate); and (3) PFW, Tween 20, and sonication. Results suggest that vigorous recovery methods yield higher amounts of endotoxin from MWF samples than mild recovery methods in PFW alone. Additional studies are required to aid in the understanding of the factors that significantly affect endotoxin extraction yields from these fluids.
Keywords
Endotoxins; Metalworking-fluids; Bioassays; Analytical-methods; Analytical-processes; Microorganisms
Contact
U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, Division of Physical Sciences and Engineering, 4676 Columbia Parkway, Cincinnati, OH 4
CODEN
AIHAAP
Publication Date
20000701
Document Type
Journal Article
Fiscal Year
2000
NTIS Accession No.
NTIS Price
Issue of Publication
4
ISSN
0002-8894
NIOSH Division
DPSE
Source Name
American Industrial Hygiene Association Journal
State
OH
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