| 用于低浓度三聚氰胺选择性检测的铝/银纳米传感器的组装及其SERS性能 | |
| Assembly of Al/Ag Nanosensor and SERS Performance for Selective Detection of Melamine with Low Concentration | |
| 摘要: 通过置换法在铝板上快速制备了一种即插即用型的Al/Ag纳米表面增强拉曼光谱（SERS）活性基底。结果表明该SERS基底较好地解决了银纳米颗粒在支撑物质上的吸附问题，能够快速实现对三聚氰胺的检测，而且具有操作简单、成本低、无损伤检测等优点，最低检测浓度能达到10-7 mol·L-1，满足国家食品安全要求的最低标准。另外，Al/Ag活性基底对三聚氰胺检测具有较高的拉曼测试重现性，连续测定15 h的过程中拉曼强度波动不大；且该Al/Ag活性基底能够在三乙醇胺、N，N-二甲基甲酰胺和1，2-丙二胺等胺类物质中实现对三聚氰胺的选择性检测。 | |
| 关键词: 纳米传感器 拉曼检测 即插即用 | |
| 基金项目: 上海市科委地方能力建设项目（No.19090503700）和国家自然科学基金（No.21771125）资助。#共同第一作者。 | |
| Abstract: A plug-and-play Al/Ag nano surface enhanced Raman spectrum (SERS) active substrate was rapidly prepared on the aluminum plate by displacement reaction. The results showed that, with the SERS substrate, the adsorption of silver nanoparticles on the supporting can be improved, and the detection for melamine can quickly achieved. This method was with the advantages of simple operation, low cost, and no damage detection, etc. The minimum detection limit can reach 10-7 mol·L-1, and it was satisfied with the minimum standards for national food safety. In addition, the Al/Ag active substrate has an excellent reproducibility for melamine detection, continuously measured for 150 h, the Raman intensity changed little. Moreover, the Al/Ag active substrate can selectively detect melamine in amines such as triethanolamine, N,N-dimethylformamide and 1,2-propanediamine. | |
| Keywords: nanosensor Raman detection plug-and-play | |
| 投稿时间：2019-08-14 修订日期：2019-12-26 | |
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| 曹琳,陈前,姜飞,秦利霞,康诗钊,高峰,李向清.用于低浓度三聚氰胺选择性检测的铝/银纳米传感器的组装及其SERS性能[J].无机化学学报,2020,36(2):295-301. | |
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