La detection et le dosage des herbicides à l'aide des chlorelles: recherches sur les conditions expérimentales optimales et application à l'analyse de plusieurs herbicides

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Abstract
Summary: The detection and estimatinn of herbicidés uith ihe aid of Chtorelta: investigation of optimum conditions and iheir applicalion to the analysis of several herbicides The use of a uniform culture of Chlorella as yn inoculum at a given density under known conditions of temperature, light and nutrition in a gaseous mixture has allowed an improvement in the technique and given highly reproducible results. Tests with atrazine have shown that it can be detected at a dose or 0.012 ppm and estimated to an accuracy of 0.04 ppm. Other herbicides have been tested and their sensitivity was found to be in lhe following descending order: lerbutryne > lenacil = isoproturon > atrazine > chlortoluron > methabenzthiazuron = metoxuron.