分析测试学报2026，Vol.45Issue(9)：1892-1899,8.DOI:10.12452/j.fxcsxb.26020305
BSA-AuNCs荧光传感体系的构建及其对水中Cr(Ⅵ)的可视化检测应用
Construction of BSA-AuNCs Fluorescence Sensing System and Its Application in Visual Detection of Cr(Ⅵ) in Water
摘要
Abstract
Cr(Ⅵ)is a significant target in the control of water pollution because of its high toxicity and severe carcinogenicity,which makes the development of inexpensive,quick,and simple detec-tion techniques extremely pertinent.In this work,red-fluorescent BSA-gold nanoclusters(BSA-AuNCs)were synthesized using bovine serum albumin(BSA)as a template and L-ascorbic acid as a reducing agent.A new analytical technique for identifying Cr(Ⅵ)in water was developed using these BSA-AuNCs as a fluorescent probe.The resulting assay showed high selectivity,a linear range of 9.00×10-7 to 1.00×10-5 mol/L,and a limit of detection(S/N=3)of 4.90 nmol/L.Mechanistic investi-gations revealed that static quenching and inner filter effect work together to quench the fluorescence of BSA-AuNCs by Cr(Ⅵ).Method validation using real water samples(tap water,the water of Yan-he River,and chromium-containing laboratory wastewater)yielded spike recoveries of 95.8％-101％,demonstrating high accuracy and reliability.Furthermore,a portable test strip based on BSA-AuNCs was fabricated,which enabled the rapid and visual detection of Cr(Ⅵ).Collectively,this study provides a practical and effective strategy for on-site screening and monitoring of Cr(Ⅵ)pollu-tion in water environments.关键词
BSA-AuNCs/荧光猝灭/Cr(Ⅵ)/可视化检测Key words
BSA-AuNCs/fluorescence quenching/Cr(Ⅵ)/visual detection分类
化学化工引用本文复制引用
李皓瑜,任艺萌,曹思琦,宋锦荣,高闯,田锐..BSA-AuNCs荧光传感体系的构建及其对水中Cr(Ⅵ)的可视化检测应用[J].分析测试学报,2026,45(9):1892-1899,8.基金项目
陕西省教育厅专项科研计划(24JK0729) （24JK0729）
延安市重点产业链项目(2024-CYL-068) （2024-CYL-068）
延安大学博士科研启动项目(YDBK2024-31) （YDBK2024-31）
延安大学大学生创新创业训练计划(D2024244) （D2024244）
