Flow injection analysis of volatile phenols in environmental water samples using CdTe/ZnSe nanocrystals as a fluorescent probe |
| |
Authors: | Email author" target="_blank">Wen-Hao?ZhangEmail author Ding?Zhang Rong-Jie?Zhang Fang?Xia Ying-Fan?Liu |
| |
Institution: | (1) Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, China;(2) Henan Provincial Center for Disease Control and Prevention, Zhengzhou, 450003, China;(3) Zhengzhou University of Light Industry, Zhengzhou, 450002, China |
| |
Abstract: | On the basis of flow injection analysis technology, a simple, accurate, and sensitive method has been developed for the determination
of volatile phenols in environmental water samples by using CdTe/ZnSe nanocrystals as a fluorescent probe. The influences
of coexisting metal ions and volatile phenol substitutes were also investigated. The method developed for analysis of volatile
phenols displayed very good linearity in the range from 1.0 × 10−8 to 4.0 × 10−7 g L−1, with a correlation coefficient greater than 0.995 and a detection limit down to 2.7 × 10−9 g L−1 (signal-to-noise ratio 3). The proposed method was successfully applied to determine the content of volatile phenols in environmental
water samples, and the quantitative recoveries were 93.4–106.1%. A possible reaction mechanism for the quenching of fluorescence
is discussed using UV–vis absorption spectra, fluorescence spectra, and time-resolved luminescence spectra of volatile phenols
obtained by titrating a CdTe/ZnSe nanocrystal aqueous solution and zeta potential data. |
| |
Keywords: | |
本文献已被 PubMed SpringerLink 等数据库收录! |
|