Abstract: In order to establish a new rapid method for determining bisphenol A (BPA) in nursing bottles, cut pieces of nursing bottles were extracted with high-purity water under ultrasonic assistance, and the extracted analyte was enriched by solid phase extraction and determined using a uminol-H2O2-Cr chemiluminescence system. The esults showed that the chemiluminescence system was inhibited by BPA. An excellent linear relationship was observed in the range of 2.0 × 10-9 －1.0 × 10-5 mol/L. The detection limit was 4.6 × 10-10 mol/L. The average spike recoveries of BPA in 5 types of commercial samples were in the range of 95.4%－106.8%, and the relative standard deviations for 7 parallel determinations were all less than 4%. The method had the advantages of sensitivity, simplicity, rapidity, low cost and accuracy over the Chinese national standard method, thus being worth promoting and popularizing.

Key words: flow injection analysis (FIA), chemiluminescence, luminol, nursing bottle, bisphenol A