Study of a Lanthanide Fluorescence System With a Coupled Reaction Based on Hemin Catalysis
1997; Royal Society of Chemistry; Volume: 122; Issue: 5 Linguagem: Inglês
10.1039/a606560k
ISSN1364-5528
AutoresXue-Ying Zheng, Jianzhong Lu, Qing-Zhi Zhu, Jin‐Gou Xu, Qingge Li,
Tópico(s)Paraquat toxicity studies and treatments
ResumoThe oxidation reactions of three substrates, p-hydroxybenzoic acid (HBA), p-hydroxyphenylacetic acid, and p-hydroxyphenylpropionic acid, with H2O2 catalysed by hemin were studied. It was significant that only the oxidation product of HBA, di-p,p'-hydroxybenzoic acid, forms a long-lived fluorescent complex with Tb3+. The three substrates themselves do not form fluorescent complexes with Tb3+ although they have chemical structural similarities. Based on this, a novel lanthanide fluorescence system with a coupled reaction was developed. The possible reactive mechanism is discussed. HBA was concluded to be well suited to several types of application from hemin determination to bovine serum albumin labeling.
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