中文摘要：

采用乳液聚合法制备了掺杂有4,7-二苯基-1,10-邻菲咯啉钌（Ru（dpp）3（ClO4）2）的聚丙烯腈纳米颗粒（Ru-PAN）.经扫描电子显微镜（SEM）表征,制备的Ru-PAN的尺寸为135±15 nm,呈规则球型,尺寸分布均匀且在水中的分散性较好.实验考察了氧气、共存离子和pH值对其荧光性质的影响以及其荧光稳定性.以异硫氰根荧光素（FITC）为pH荧光指示剂、Ru-PAN为参比信号,初步建立了一种比率荧光pH检测的方法.

英文摘要：

In this paper Ru（dpp）3（ClO4）2 doped polyacrylonitrile nanoparticles（Ru-PAN） were prepared using emulsion polymerization method.Morphology characterizations of the nanoparticles were performed using scanning electron microscope,the particle diameter was about 135±15 nm.The interference of the oxygen,coexisting ions,pH and photo-stability were investigated.A new ratiometric fluorescence pH sensing system was established via fluorescein isothiocyanate（FITC） as pH-sensitive dye and Ru-PAN as a reference.