纳米团簇
六价铬
检出限
荧光
费斯特共振能量转移
铬
化学
选择性
色谱法
催化作用
有机化学
物理
量子力学
作者
Feiyan Liu,Xuandi Lai,Shengliang Zhao,Zhiyang Lu,Peigang Han,Liqiong Chen
出处
期刊:Food Chemistry
[Elsevier]
日期:2023-02-01
卷期号:402: 134251-134251
被引量:9
标识
DOI:10.1016/j.foodchem.2022.134251
摘要
Hexavalent chromium (Cr6+) owns hypertoxicity, non-biodegradability, and carcinogenicity, thus the detection of Cr6+ is of paramount significance for environmental monitoring and human health maintenance. Herein, a simple, rapid, and feasible fluorescent method based on gold nanoclusters (AuNCs) was established for determination of Cr6+. The AuNCs was coated by a simple and fast one-pot method using d-histidine (d-His) and polylysine (P-Lys) as stabilizers and reductants, which could be quenched by the addition of Cr6+ owing to the aggregation of AuNCs and fluorescence resonance energy transfer (FRET) between AuNCs and Cr6+. Under the optimal conditions, the fluorescent sensor exhibited good linearity within 10-10000 μg/L with limit of detection of 7.2 μg/L. The developed sensor possessed favorable sensitivity and selectivity. Additionally, the proposed method also had favorable recovery with good precision and accuracy within the actual sample, including celery cabbage, rice, capsule shell, and river water.
科研通智能强力驱动
Strongly Powered by AbleSci AI