Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
}
TY - JOUR
T1 - The determination of hydroxyl radical concentrations in environmental chambers using electron spin resonance.
AU - Stokes, Neil J.
AU - Tabner, Brian J.
AU - Hewitt, CN
PY - 1994
Y1 - 1994
N2 - 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%.
AB - 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%.
U2 - 10.1016/0045-6535(94)90016-7
DO - 10.1016/0045-6535(94)90016-7
M3 - Journal article
VL - 28
SP - 999
EP - 1008
JO - Chemosphere
JF - Chemosphere
IS - 5
ER -