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Updated: Dec 31, 2025

Measuring Rates of Herbicide Metabolism in Dicot Weeds with an Excised Leaf Assay
Published on: September 7, 2015
Direct measurements of the reactivity of singlet oxygen to some persistent herbicides in aqueous solutions
Ivan P Pozdnyakov1, Marina V Parkhats2
1Novosibirsk State University, 630090, Novosibirsk, Russian Federation; V.V. Voevodsky Institute of Chemical Kinetics and Combustion, 630090, Novosibirsk, Russian Federation.
Abstract:
Reactivity of the singlet oxygen (SO), which is assumed to be one of the important oxidizers in natural waters, towards to a set of persistent herbicides, was measured for the first time using time resolved luminescence technique. It was observed that rate constants of SO reactions with the majority of studied herbicides are less than 106 M-1s-1 allowing to conclude about negligible participation of SO in oxidation of the compounds in natural waters.

