Techniques Affecting Precision and Accuracy in Hydrolysis Rate Constant Determinations of Volatile Organic Compounds Using Jeffers′ Zero Headspace Reaction Bulbs

Autor:	Cheryl D. Trusty, J. Jackson Ellington
Rok vydání:	1991
Předmět:	Arrhenius equation Accuracy and precision Aqueous solution Chemistry Biochemistry (medical) Clinical Biochemistry Analytical chemistry Biochemistry Analytical Chemistry Hydrolysis symbols.namesake Investigation methods Reaction rate constant Electrochemistry symbols Trichloroethane Spectroscopy
Zdroj:	Analytical Letters. 24:327-344
ISSN:	1532-236X 0003-2719
Popis:	A recently published method for measurement of hydrolysis rate constants for volatile organic compounds in aqueous samples was adopted for use in our laboratory. In 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. After 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°C) that was within 17% of the value calculated using the Arrhenius parameters of Jeffers method. A detailed description of our experiences while learning this technique and becoming proficient in its use is provided with the belief that our experiences would benefit other analytical chemists.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1dd477d62fdfc1d91fb24cf9830c5304 https://doi.org/10.1080/00032719108052908 Zobrazit plný text záznamu