SIMULTANEOUS DETECTION METHOD OF GLYPHOSATE, ENDOTHALL AND CHLORAMBEN AS HERBICIDES IN WATER SAMPLES

摘要

PURPOSE: A simultaneous detection method of Glyphosate, Endothall and Chloramben as herbicides in water samples is provided, thereby easily, accurately and cheaply detecting the herbicides at one time. CONSTITUTION: A simultaneous detection method of Glyphosate, Endothall and Chloramben as herbicides in water samples comprises the steps of: concentrating Glyphosate, Endothall and Chloramben and forming their derivatives with anhydrous trifluoroacetic acid and trifluoroethanol; analyzing their derivatives to prepare a measuring curve for determination of the concentrations of three herbicides; forming derivatives of three herbicides in various environmental samples; and determining the concentrations of three herbicides, wherein the concentration is carried out by using vaporization under vacuum; the formation of derivatives of three herbicides is carried out by heating the mixture of herbicides with trifluoroacetic acid and trifluoroethanol at 60 to 90 deg. C for 30 to 120 minutes; and the concentration of three herbicides is determined by using gas chromatography/mass spectrometer.