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ROUND ROBIN ANALYSIS OF ALCOHOL AND CARBONYL SYNTHETIC EXHAUST SAMPLES
Citation:
Clark, W., W. Biller, S. Tejada, W. Siegl, T. Jensen, D. Rosenhamer, M. Newkirk, AND R. Crowley. ROUND ROBIN ANALYSIS OF ALCOHOL AND CARBONYL SYNTHETIC EXHAUST SAMPLES. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/A-94/185 (NTIS PB95124715), 1994.
Description:
Recent changes in regulatory practices have brought about a need for speciated analysis of the volatile organic components of vehicle exhaust. he purpose of this study was to allow interested laboratories to participate in a Round Robin so that each could assess their speciation methodologies. Synthetic exhaust" samples were prepared of mixed DNPH-carbonyl standards deposited on DNPH-coated cartridges, and solutions of alcohol in water. he fifteen participating laboratories included automotive, contract, petroleum, and regulatory organizations. he results described in this paper consider only variability associated with the analytical measurement of the samples that have already been collected in impingers or on cartridges. n general, alcohols (methanol and ethanol) were quantified without difficulty. ith the exception of acrolein, and crotonaldehyde, the quantitation of the carbonyl samples were fairly good considering the variety of analytical methods that were employed.
