A sensing platform based on zinc-porphyrin derinative in hexadecyl trimethyl ammonium bromide (CTAB) microemulsion for highly sensitive detection of theophylline

Autor:	Baojuan Zhao, Yuancui Li, Yunhan Zhao, Yan Ma, Fengjuan Li, Hongli Han, Na Wang, Xiang Wang
Rok vydání:	2022
Předmět:	Zinc Porphyrins Spectrometry Fluorescence Theophylline Cetrimonium Instrumentation Spectroscopy Atomic and Molecular Physics and Optics Analytical Chemistry
Zdroj:	Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy. 281
ISSN:	1873-3557
Popis:	A new porphyrin-based sensing platform in hexadecyl trimethyl ammonium bromide (CTAB) microemulsion is developed for highly sensitive detection of theophylline. In this sensing system, the zinc-porphyrin-cinnamic acid conjugate (Zn-TPPCA) works as fluorescence probe while theophylline can decrease fluorescence intensity of the probe. Further studies indicate the linear relationship between the fluorescence quenching value and the concentration of theophylline within a given range. And the introduction of CTAB microemulsion can greatly enhance sensibility and stability of this detecting system and facilitate the detection of theophylline. On the basis above, a highly sensitive sensing platform for theophylline is created with a low limit of detection (LOD) of 0.0083 μg mL
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eb4ee48361e65ba7bfef96f2818b243a https://pubmed.ncbi.nlm.nih.gov/35878493 Zobrazit plný text záznamu Full Text from ScienceDirect