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Anal Bioanal Chem

Title:		Flow injection analysis of volatile phenols in environmental water samples using CdTe/ZnSe nanocrystals as a fluorescent probe
Author(s):		Zhang WH; Zhang D; Zhang RJ; Xia F; Liu YF;
Address:		"Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, China. cdcwhzhang@gmail.com"
Journal Title:		Anal Bioanal Chem
Year:		2012
Volume:		20111026
Issue:		2
Page Number:		895 - 901
DOI:		10.1007/s00216-011-5477-2
ISSN/ISBN:		1618-2650 (Electronic) 1618-2642 (Linking)
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 x 10(-8) to 4.0 x 10(-7) g L(-1), with a correlation coefficient greater than 0.995 and a detection limit down to 2.7 x 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:		Cadmium Compounds/*chemistry Flow Injection Analysis Fluorescent Dyes/*chemistry Nanoparticles/*chemistry Particle Size Phenols/*analysis Selenium Compounds/*chemistry Surface Properties Tellurium/*chemistry Volatile Organic Compounds/*analysis Water Poll;
Notes:		"MedlineZhang, Wen-Hao Zhang, Ding Zhang, Rong-Jie Xia, Fang Liu, Ying-Fan eng Research Support, Non-U.S. Gov't Germany 2011/11/01 Anal Bioanal Chem. 2012 Jan; 402(2):895-901. doi: 10.1007/s00216-011-5477-2. Epub 2011 Oct 26"