内标优化提高了比率检测法的灵敏度和稳健性

IF 3.3 3区化学 Q2 CHEMISTRY, ANALYTICAL

Analyst Pub Date : 2024-04-29 DOI:10.1039/D4AN00266K

Yuning Jiang, Jiaying Cao, Sen Hu, Tao Cheng, Hanyu Wang, Xiaoyu Guo, Ye Ying, Xinling Liu, Feng Wang, Ying Wen, Yiping Wu and Haifeng Yang

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引用次数: 0

摘要

我们设计了一种对氨基苯硫酚（pATP）修饰的 Au/ITO 芯片，利用亚硝酸根离子引发 pATP 向 p,p′-二巯基偶氮苯（DMAB）转化的比率表面增强拉曼散射（SERS）法测定湖水中的亚硝酸根离子。有趣的是，用苯甲酸环变形产生的 SERS 峰（1008 cm-1）代替传统的 1080 cm-1 峰作为内标，该方法的检测灵敏度提高了 10 倍。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Internal standard optimization advances sensitivity and robustness of ratiometric detection method†

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Internal standard optimization advances sensitivity and robustness of ratiometric detection method†

We design a p-aminothiophenol (pATP) modified Au/ITO chip to determine nitrite ions in lake water by a ratiometric surface-enhanced Raman scattering (SERS) method based on nitrite ions triggering the transformation of pATP to p,p′-dimercaptoazobenzene (DMAB). Intriguingly, by using the SERS peak (at 1008 cm⁻¹) from benzoic ring deforming as an internal standard instead of the traditional peak at 1080 cm⁻¹, the detection sensitivity of the method was improved 10 times.

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