Abstract
Abstract
Three types of pollutants investigated are commonly used and pose a great threat to both environment and human health. This article was aimed at the representative three kinds of pollutants, mainly to explore a fast, simple, sensitive, visible naked eye detection method. The colorimetric detection by gold nanoparticles (AuNPs) was first tried. The cross-linking reaction occurred owing to the strong forces between targets and AuNPs, leading to the aggregation and color change. However, large-scaled aggregation was easily formed and settled which failed to realize accurate quantification. Thus, AuNPs were considered to be used in fluorescence detection as reaction bridge. The introduction of AuNPs could effectively quench the fluorescence of Rhodamine B based on the fluorescence resonance energy transfer (FRET). Since three types of pollutants had great affinity with AuNPs, Rhodamine B dissociated from the solution, causing the recovery of red fluorescence. The fluorescent responses toward three targets were established, resulting in the good linearity in a wide range with low detection limits. The selectivity was well investigated among the same types of interferences. This simple, fast and sensitive fluorescence detection system was first used for simultaneously detecting three types of pollutants and finally successfully applied to real samples.
Publisher
Research Square Platform LLC
Reference37 articles.
1. Thin-layer chromatography combined with surface‐enhanced Raman scattering for rapid detection of benzidine and 4‐aminobiphenyl in migration from food contact materials based on gold nanoparticle doped metal‐organic framework;Cai G;Journal of Separation Science,2020
2. Analysis of Aromatic Amines in Surface Waters Receiving Wastewater from a Textile Industry by Liquid Chromatographic with Electrochemical Detection;Mazzo TM;Analytical Letters,2006
3. L. Falciola, V. Pifferi, E. Mascheroni, Platinum-Based and Carbon-Based Screen Printed Electrodes for the Determination of Benzidine by Differential Pulse Voltammetry, Electroanalysis, 24(2012) 767 – 75.
4. Durian-like multi-functional Fe3O4–Au nanoparticles: synthesis, characterization and selective detection of benzidine;Wang Z;Journal of Materials Chemistry A,2013
5. Mortality and incidence of bladder cancer in benzidine exposed workers in China;Bi W;American Journal of Industrial Medicine,1992