The determination of hydroxyl radical concentrations in environmental chambers using electron spin resonance.

Stokes, Neil J. and Tabner, Brian J. and Hewitt, CN (1994) The determination of hydroxyl radical concentrations in environmental chambers using electron spin resonance. Chemosphere, 28 (5). pp. 999-1008.

Full text not available from this repository.

Abstract

A simple sampling and analytical method for the determination of OH radical concentrations in air is described, as applied to the characterization of air in closed environmental chambers. High-volume sampling through a filter paper impregnated with α-(4-pyridyl 1-oxide)-N-tert-butylnitrone leads to the formation of an OH-spin adduct. After extraction into toluene the adduct is analysed by electron spin resonance spectroscopy. Unambiquous identification and quantification of OH radical concentrations is achieved, giving a detection limit of 5 × 104 radicals cm−3 of air and a precision of ± 25%.

Item Type:
Journal Article
Journal or Publication Title:
Chemosphere
Uncontrolled Keywords:
/dk/atira/pure/researchoutput/libraryofcongress/ge
Subjects:
ID Code:
22526
Deposited By:
Deposited On:
27 Jan 2009 16:09
Refereed?:
Yes
Published?:
Published
Last Modified:
01 Jan 2020 06:31