A portable front face fluorescent system for in situ detection of aluminum in flour foods

Shuai-Teng Jiang; De-Jiang Gao; Yang Yu; Yong Yu

doi:10.1016/j.foodchem.2023.135986

A portable front face fluorescent system for in situ detection of aluminum in flour foods

Food Chem. 2023 Aug 30:418:135986. doi: 10.1016/j.foodchem.2023.135986. Epub 2023 Mar 21.

Authors

Shuai-Teng Jiang¹, De-Jiang Gao², Yang Yu², Yong Yu³

Affiliations

¹ College of Instrumentation and Electrical Engineering, Jilin University, West Minzhu Street 938, Changchun 130026, PR China.
² College of Chemistry, Jilin Province Research Center for Engineering and Technology of Spectral Analytical Instruments, Jilin University, Qianjin Street 2699, Changchun 130012, PR China.
³ College of Instrumentation and Electrical Engineering, Jilin University, West Minzhu Street 938, Changchun 130026, PR China. Electronic address: yuyong@jlu.edu.cn.

PMID: 36996656
DOI: 10.1016/j.foodchem.2023.135986

Abstract

A simple and rapid method for in situ detection of aluminum in flour food was developed by using a self-made portable front face fluorescent system (PFFFS). The effects of pH, temperature, reaction time, protective agent and masking agent on the detection of Al³⁺ were investigated. The use of fluorescent probe protective agent, interfering ion masking agent, multi-point collection measurements and the working curves based on the analyte content in the real samples makes the present method have high accuracy, selectivity and reliability for in situ detection of Al³⁺ in flour foods. By comparison with the ICP-MS the accuracy and reliability of the present method were verified. The results showed that when 97 real samples were analyzed the Al³⁺ content values obtained by the present method and those obtained by ICP-MS method reached a highly significant correlation, with r ranging from 0.9747 to 0.9844. The self-made PFFFS combined with fluorescent probe does not require sample digestion, and can quickly detect Al³⁺ in flour food within 10 min. Therefore, the present method based on using FFFS has good practical application value for in-situ rapid detection of Al³⁺ in flour foods.

Keywords: Aluminum; Flour food; Fluorescent probe; Food additive; In situ detection.

MeSH terms

Aluminum
Flour*
Fluorescent Dyes* / chemistry
Reproducibility of Results

Substances

Fluorescent Dyes
Aluminum