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TECHNIQUES AFFECTING PRECISION AND ACCURACY IN HYDROLYSIS RATE CONSTANT DETERMINATIONS OF VOLATILE ORGANIC COMPOUNDS USING JEFFERS' ZERO HEADSPACE REACTION BULBS
Citation:
Trusty, C. AND J.J. Ellington. TECHNIQUES AFFECTING PRECISION AND ACCURACY IN HYDROLYSIS RATE CONSTANT DETERMINATIONS OF VOLATILE ORGANIC COMPOUNDS USING JEFFERS' ZERO HEADSPACE REACTION BULBS. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/J-91/137 (NTIS PB91216291), 1991.
Description:
A recently published method for measurement of hydrolysis rate constants for volatile organic compounds in aqueous samples was adapted for use in our laboratory. n applying the method, we developed the capability to make the zero-headspace reaction bulbs and used them to measure the hydrolysis rate constant for 1,1,1-trichloroethane. fter establishing and mastering the critical points of the technique, we were able to determine an acceptable neutral hydrolysis rate constant (kn = 7.98 E-2 min-1, 115 degrees C) that was within 17% of the value calculated using the Arrhenius parameters of the Jeffers' method. etailed description of our experiences while learning this technique and becoming proficient in its use is provided in the belief that our experience would benefit other analytical chemists.
