A new spectrophotometry method for the determination of trace bisphenol A was established based on inhibitory effect of bisphenol A on the oxidation of crystal violet with peroxyl radical produced from Fenton reaction[Fe(Ⅱ) +H_2O_2]in hydrochloric acid medium.The absorption change of crystal violet was measured under the optimum experimental conditions at 580nm.The detection limit and the quantification limit for bisphenol A was 3.3ng·mL~(-1) and 11.0ng·mL~(-1), respectively;and the linear range was 0.015—0...