CAJ | 학술논문

制备了碳量子点修饰的硅胶SiO2＠ CDs ．在盐酸介质中KBrO3能够氧化碳量子点使其荧光发射峰减弱，而双酚A （BPA ）对此氧化猝灭有明显抑制作用，据此建立了荧光法测定痕量双酚 A的新方法，线性范围是20～500μg·L －1，检出限3σ为52．μg·L －1．本文作者将该方法成功用于塑料制品中双酚A的测定，回收率在95％～104％之间．
제비료탄양자점수식적규효SiO2＠ CDs ．재염산개질중KBrO3능구양화탄양자점사기형광발사봉감약，이쌍분A （BPA ）대차양화졸멸유명현억제작용，거차건립료형광법측정흔량쌍분 A적신방법，선성범위시20～500μg·L －1，검출한3σ위52．μg·L －1．본문작자장해방법성공용우소료제품중쌍분A적측정，회수솔재95％～104％지간．
Fluorimetric silica was prepared by carbon dots modifying silica .In hydrochloric acid medium ,the carbon dots could be oxided by potassium bromate .This could result in the fluo‐rescence quenching .However ,bisphenol A showed the inhibitory effect on the reaction of po‐tassium bromated oxidation of carbon dots .The fluorimertic method was just based on the in‐hibitory effect .The detection limit for bisphenol A was 5 2.μg · L -1 ,with a linear range of 20-500 μg · L -1 .The method was successfully applied for the determination of BPA in plastic products with a spiking recovery of 95% -104% .