Development of an “on-off-on” fluoroprobe utilizing an anthrylimidazole-based fluorescent ionic liquid for sensitive Cr(VI) and ascorbic acid detection

He Mei; Ping Xu; Mengting Feng; Jianping Wang; Chenxin Zhang; Haibin Chen; Huili Wang; Junyi Guo; Xuedong Wang; Shugen Qu

Food Chemistry: X (Jun 2024)

Development of an “on-off-on” fluoroprobe utilizing an anthrylimidazole-based fluorescent ionic liquid for sensitive Cr(VI) and ascorbic acid detection

He Mei,
Ping Xu,
Mengting Feng,
Jianping Wang,
Chenxin Zhang,
Haibin Chen,
Huili Wang,
Junyi Guo,
Xuedong Wang,
Shugen Qu

Affiliations

He Mei: Zhejiang Provincial Key Laboratory of Watershed Science and Health, College of Public Health, Wenzhou Medical University, Wenzhou 325035, China; South Zhejiang Institute of Radiation Medicine and Nuclear Technology, Wenzhou 325809, China
Ping Xu: School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou 325035, China
Mengting Feng: Zhejiang Provincial Key Laboratory of Watershed Science and Health, College of Public Health, Wenzhou Medical University, Wenzhou 325035, China
Jianping Wang: Zhejiang Provincial Key Laboratory of Watershed Science and Health, College of Public Health, Wenzhou Medical University, Wenzhou 325035, China
Chenxin Zhang: School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou 325035, China
Haibin Chen: Zhejiang Provincial Key Laboratory of Watershed Science and Health, College of Public Health, Wenzhou Medical University, Wenzhou 325035, China; South Zhejiang Institute of Radiation Medicine and Nuclear Technology, Wenzhou 325809, China
Huili Wang: School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
Junyi Guo: School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou 325035, China; Co-corresponding authors.
Xuedong Wang: School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China; Co-corresponding authors.
Shugen Qu: Zhejiang Provincial Key Laboratory of Watershed Science and Health, College of Public Health, Wenzhou Medical University, Wenzhou 325035, China; South Zhejiang Institute of Radiation Medicine and Nuclear Technology, Wenzhou 325809, China; Corresponding author at: Zhejiang Provincial Key Laboratory of Watershed Science and Health, College of Public Health, Wenzhou Medical University, Wenzhou 325035, China.

Journal volume & issue: Vol. 22
p. 101488

Abstract

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Developing a rapid detection method of Cr(VI) and ascorbic acid (AA) is vital in the food and environmental fields. Herein, an anthrylimidazole-based fluorescent ionic liquid (AI-FIL) with the advantageous fluorescent properties was successfully prepared and used to construct a promising “on-off-on” fluoroprobe for rapid/sensitive Cr(VI) and AA detection. Cr(VI) could effectively quench the fluorescence of AI-FIL owing to the inner-filter effect and photoinduced electron-transfer process. However, the decreased fluorescence could be rapidly recovered by AA owing to the redox reaction between AA and Cr(VI). For Cr(VI) detection, a satisfactorily linear response (0.03–300 μM) was achieved with the corresponding detection limit of 9 nM. For AA detection, a good linearity from 1 to 1000 μM was obtained with the resultant detection limit of 0.3 μM. Moreover, the AI-FIL based fluoroprobe was successfully utilized for Cr(VI) and AA detection in food and water samples with satisfactory accuracy and precision.

Published in Food Chemistry: X

ISSN: 2590-1575 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Technology: Home economics: Nutrition. Foods and food supply; Technology: Chemical technology: Food processing and manufacture
Website: https://www.journals.elsevier.com/food-chemistry-x

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