Spectroscopy and Spectral Analysis, Volume. 35, Issue 11, 3092(2015)
Preparation of Gold Nano-Particles as Surface-Enhanced Raman Scattering Sensors for Analysis of Banned Food Dye Chrysoidin in Yuba
Chrysoidin is a kind of banned food dye, and it has been illegally used for coloring food. A rapid detection and quantification method is developed and applied in analysis chrysoidin in yuba. Gold nanoparticles are synthesized by using hexadecyl trimethyl ammonium bromide (CTAB) as the bifunctional ligand to link the solid substrate and the AuNPs. The laser wavelength used for quantitative is 1 594 cm-1. Significant differences between different concentrations of chrysoidin are verified by multiple variable analysis. A relationship between the logarithm of the concentrations and the intensity of laser is proved using univariate analysis method. The calibration curves showed good linearity in the range of 0.001~0.5 mmol·L-1 with correlation coefficients r=0.995. The method is successfully applied to the determination of chrysoidin in yuba. The average recoveries of the drugs spiked at 50 and 500 μg·g-1 levels are 82.4% and 116.9%, and the relative standard deviations (RSD) are 3.8% and 4.0%. The method is simple, rapid, sensitive and accurate in the determination of chrysoidin.
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XU Xue-qin, LIU Qiong-hua, YANG Fang, QIAN Jiang, CHEN Jian, LIN Zhen-yu, QIU Bin. Preparation of Gold Nano-Particles as Surface-Enhanced Raman Scattering Sensors for Analysis of Banned Food Dye Chrysoidin in Yuba[J]. Spectroscopy and Spectral Analysis, 2015, 35(11): 3092
Received: Jul. 7, 2014
Accepted: --
Published Online: Feb. 2, 2016
The Author Email: Xue-qin XU (xxq@fzu.edu.cn)