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Investigation of an Air Sampling and Analytical Method for Methyl Ethyl Ketone Peroxide.

Authors
Okenfuss-JR; Posner-JC
Source
NIOSH 1980 Aug:22 pages
Link
NIOSHTIC No.
00102913
Abstract
A method was developed to determine methylethyl-ketone-peroxide (1338234) (MEKO) in air based on a series of tests on stability, the effects of temperature, time and oxygen, the effects of freezer storage, collection efficiency and vapor storage, use of teflon filters, and the effects of ketones on absorbance. MEKO was collected in a midget impinger containing 15 milliliters of dimethyl- phthalate. A portion of the solution was treated with diphenylcarbohydrazide color reagent and heated to produce a violet color. The reaction was read spectrophotometrically at 565 nanometers and compared to values for known MEKO standards. The range of the method was 0.31 to 3.1 milligrams per cubic meter, and the limit of detection was 25 micrograms per 100 milliliters. Interferences may have occurred from other peroxides or potent oxidants, most ketones, or metal ions. The authors note that this method provides rapid sample collection and does not require sample elution or desorption, however the midget impingers are awkward for use in sample collection and the color reaction is relatively nonspecific. They recommend that special care must be taken regarding sterility of the glassware used and storage of the samples.
Keywords
NIOSH-Author; Air-sampling; Sampling-methods; Air-contamination; Physical-properties; Chemical-properties; Chemical-analysis; Materials-handling; Analytical-methods;
CAS No.
1338-23-4;
Publication Date
19800819
Fiscal Year
1980
NTIS Accession No.
PB81-167868
NTIS Price
A03
NIOSH Division
DPSE;
Source Name
U.S. Department of Health and Human Services, Public Health Service Center for Disease Control, NIOSH, Division of Physical Sciences and Engineering, Cincinnati, Ohio, 22 pages, 3 references
State
OH;
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