The hydrolysis of a n ew herbicide propisochlor at different temperatures is studied by means of High P erformance Liquid Chromatography(HPLC).The results show that the higher tem-perature is helpful for the hydrolysis process;the relationship between temper ature and hydrolysis rate is fit for the Arrhenius empirical formula;when propi sochlor is in different buffers,the effect of temperature varies.In the syste m of pH=1.30buffer the change of temperature exerts more in-fluence on the hydrolysis of propis...