Spectroscopy and Spectral Analysis, Volume. 34, Issue 3, 681(2014)
Monolithic Column-Gold Composite Substrate Preparation and Application to SERS Detection of Pigment
In the present study, we developed a novel SERS substrate with the porous monolith material combined with classic gold nanoparticles, and erythrosine as the research object, by adjusting the different experimental conditions for optimal SERS enhancements, including system pH and mixing time, and ultimately selected the optimum pH value 506 and mixing time 25 min. Compared with the traditional gold plastic substrate enhancement effect, the experimental conditions were applied to the monolith substrate SERS detection of dye erythrosine, different concentrations of samples were used for erythrosine SERS detection, and the detection limit reached 01 g·mL-1. The method uses the payload of gold nanoparticles in mesoporous materials to effectively enhance the SERS signal. And this method has the advantages of simpleness and good stability, which provides a favorable theoretical basis for the rapid prohibited colorings screening.
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XIE Yun-fei, LI Yan, YU Hui, QIAN He, YAO Wei-rong. Monolithic Column-Gold Composite Substrate Preparation and Application to SERS Detection of Pigment[J]. Spectroscopy and Spectral Analysis, 2014, 34(3): 681
Received: Apr. 25, 2013
Accepted: --
Published Online: Mar. 14, 2014
The Author Email: Yun-fei XIE (xieyunfei@jiangnan.edu.cn)