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Quantitative detection of crystal violet using a surface-enhanced Raman scattering based on a flower-like HAp/Ag nanocomposite
Analytical Methods ( IF 3.1 ) Pub Date : 2021-08-16 , DOI: 10.1039/d1ay01107c
Yamin Lin 1 , Mengmeng Zheng 1 , Xin Zhao 1 , Dan Liu 1 , Jiamin Gao 1 , Wei Gong 1 , Shusen Xie 1 , Siqi Gao 1 , Yun Yu 2 , Juqiang Lin 1, 3
Affiliation  

Herein, we proposed a simple one-pot sol-thermal strategy to prepare a highly sensitive and reproducible SERS substrate. The silver-doped hydroxyapatite nanocomposite (HAp/Ag) could suppress the oxidation of silver nanoparticles, which endow the SERS substrate with good stability and reproducibility. Due to the strong interaction between the HAp/Ag substrate and the analytes, a stronger Raman signal generated during the process of SERS detection. In particular, the HAp/Ag substrate enabled the determination of rhodamine 6G (R6G) and crystal violet (CV), and the limits of detection (LOD) were low at 10−6 M and 10−5 M, respectively. In addition, the HAp/Ag substrate could be used for the quantitative analysis of CV in wastewater with a good linear relationship between 10−2 and 10−5 M. In this context, the HAp/Ag substrate combines the superior properties of both Ag NPs and HAp particles, providing a potential method for monitoring the environment and building a convenient SERS platform to detect pollutants in wastewater.

中文翻译:

基于花状HAp/Ag纳米复合材料的表面增强拉曼散射定量检测结晶紫

在此,我们提出了一种简单的一锅溶胶热策略来制备高度灵敏且可重复的 SERS 底物。掺银羟基磷灰石纳米复合材料(HAp/Ag)可以抑制银纳米颗粒的氧化,使SERS基底具有良好的稳定性和重现性。由于 HAp/Ag 底物与分析物之间的强相互作用,在 SERS 检测过程中会产生更强的拉曼信号。特别是,HAp/Ag 底物能够测定罗丹明 6G (R6G) 和结晶紫 (CV),并且检测限 (LOD) 分别为 10 -6 M 和 10 -5 M低。此外,HAp/Ag 底物可用于废水中 CV 的定量分析,与 10 -2和10 -5 M。在这种情况下,HAp/Ag 底物结合了Ag NPs 和HAp 颗粒的优异特性,为监测环境和构建方便的SERS 平台以检测废水中的污染物提供了一种潜在的方法。
更新日期:2021-08-27
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