基于水溶性2,5-二（4＇-羧基苯基）-1-苯基吡咯的羧酸钠盐（TPP-2COONa）具有质子化荧光淬灭、去质子化荧光增强的特征.在研究了TPP-2COONa的紫外吸收光谱和荧光发射光谱对pH的响应规律的同时,以此为荧光探针,证实了TPP-2COOH对于多种胺类（氨水、二异丙胺、异丙胺和三乙胺）荧光增强响应明显,而对芳香胺（吡咯、苯胺、吡啶）没有任何荧光响应,其中对于氨水最为敏感,在很窄的pH区间和低浓度范围内荧光强度大幅度增长,体现了该探针对于氨水具有良好的选择性和灵敏度,并可简易实现＂在线裸眼检测＂.“,”2,5-Di（4＇-carboxylphenyl）-1-phenylpyrrole was firstly successfully synthesized.UV-Vis and fluorescence spectra were employed to study the optical properties of TPP-2COONa at different pH values in aqueous media.The compound is found to weaken fluorescence in acidic state and,however,strengthen fluorescence in base state.The experimental results indicated that the fluorescent emission of TPP-2COOH can be ＂turned-on＂ by ammonia and some water-soluble alkyl amines（triethylamine,isopropylamine,diisopropylamine）.But it remains unchanged upon addition of N-containing aromatic compounds（aniline,pyrrole,and pyridine）.Specially,the compound as the fluorescent probe shows the good selectivity and sensitivity toward ammonia.Thus,the ＂on-line naked eye＂ detection for amines becomes possible.