Development of a fluorescent probe for detecting Al 3+ in cooked wheaten food based on phosphonic acid group functionalized polythiophene derivatives

Autor:	Ting Yang, Songrui Li, Hai-Cheng Gao, Chun-ling Xu, Zhiru Hu, Guodong Feng
Rok vydání:	2021
Předmět:	Detection limit integumentary system Metal ions in aqueous solution Biophysics chemistry.chemical_element Buffer solution Fluorescence chemistry.chemical_compound chemistry Chemistry (miscellaneous) Aluminium Polythiophene Selectivity Masking agent Nuclear chemistry
Zdroj:	Luminescence. 36:1600-1607
ISSN:	1522-7243 1522-7235
Popis:	As an unnecessary trace element, the content of aluminium in biological systems should be strictly controlled. Therefore, it was necessary to develop a convenient method for detection of aluminium ions. In this study, a fluorescent probe based on polythiophene derivatives was developed and used to detect Al3+ in Chinese traditional pasta. The fluorescence of this probe showed a significant decrease in hexamethylenetetramine-HCl buffer solution (pH 5) when Al3+ was present. In addition, the probe exhibited good sensitivity and selectivity to Al3+ over other metal ions when EDTA was used as the masking agent. Fluorescence intensity had a good linear relationship with the Al3+ concentration in the range 0.1-10 μM and the limit of detection for Al3+ was 39 nM. Furthermore, the probe was successfully applied to detect Al3+ in food samples and the results were consistent with ICP-AES.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b648e3922699c1e520e11945b1447558 https://doi.org/10.1002/bio.4093 Zobrazit plný text záznamu Plný text