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基于N-CQD的光探针:用于直接检测食品添加剂STPP和Al

Jianghua Wang¹, Qing Li¹, Weijie Wang¹

¹School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, PR China; Anhui Province Key Laboratory of Functional Coordinated Complexes for Materials Chemistry and Application, Wuhu, Anhui 241000, PR China.

Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy

|August 28, 2024

概括

一种新方法使用化碳量子点 (N-CQD) 来检测食品中的三聚酸 (STPP). 这种敏感的光探针提供了一种快速简单的方法来识别食品样本中的STPP和Al3+.

科学领域:

分析化学分析化学
材料科学材料科学材料科学

背景情况:

三聚酸盐 (STPP) 是一种常见的食品添加剂,具有潜在的健康风险.
目前用于STPP检测的方法可能缺乏速度,灵敏度或简单性.
开发快速准确的检测方法用于STPP在食品中对于公共卫生至关重要.

研究的目的:

开发一种新的光探针,用于敏感和选择性检测STPP.
研究化碳量子点 (N-CQDs) 对于STPP检测的潜力.
使用开发的探测器探索STPP和Al3+的同时检测.

主要方法:

用添加的碳量子点 (N-CQDs) 的合成.
研究N-CQD对STPP的光反应.
基于光变化的STPP和Al3+双检测策略的开发.
在实物食品样本 (面包) 中使用探针检测STPP.

主要成果:

添加STPP导致N-CQDs的排放峰值逐渐增强,线性从0.067-1.96μM,检测极限为0.024μM.
添加Al3+有效地提高了N-CQDs@STPP溶液的光强度,显示线性从0.33-6.25μM,检测极限为0.24μM.
开发的光探针已成功应用于在面包样本中检测STPP.

结论:

化碳量子点为STPP的直接检测提供了一个新的平台.
开发的光探针提供了一种灵敏,快速和简单的方法来检测STPP和Al3+.
这种方法显示出在食品安全分析中实际应用的巨大潜力.

关键词:

(3+) 是一种碳量子点是一个量子点.光探测器探测器可以发光.食品添加剂是一种食品添加剂.三聚酸盐是三聚酸盐的一种.

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