Dual lanthanide-probe based on coordination polymer networks for ratiometric detection of glyphosate in food samples

NWIPB OpenIR

	Dual lanthanide-probe based on coordination polymer networks for ratiometric detection of glyphosate in food samples
	Qu, Fei; Wang, Han; You, Jinmao
	2020
发表期刊	FOOD CHEMISTRY
卷号	323
摘要	Herein, a new type of coordination polymer networks (CPNs), where both of 2,6-Pyridinedicarboxylic acid (DPA) and guanylate monophosphate (GMP) chelate with Eu3+, are firstly synthesized (GMP/Eu/DPA). After mixing with GMP/Tb CPNs, a novel ratiometric dual lanthanide nanoprobe is constructed. Alkaline phosphohydrolase (ALP) specifically induces the cleavage of phosphate ester group in GMP. Therefore, the addition of ALP causes the fluorescence quenching of GMP/Tb, and then the emissions of GMP/Eu/DPA enhance as the result of the formation of Eu/DPA complexes. Glyphosate, as an organophosphorus pesticide, can vehemently inhibit the catalytic activity of ALP, so a ratiometric detection of glyphosate can be achieved with a linear range from 0.015 to 8.45 mu g/mL. The present strategy also shows good recoveries for measuring glyphosate in rice, millet, soybean, milk, tap water, and mountain spring water, suggesting a great potential for applications in foods.
关键词	Fluorescence Coordination polymer networks Dual lanthanide Ratiometric detecton Glyphosate Food
文献类型	期刊论文
条目标识符	http://210.75.249.4/handle/363003/60268
专题	中国科学院西北高原生物研究所
推荐引用方式 GB/T 7714	Qu, Fei,Wang, Han,You, Jinmao. Dual lanthanide-probe based on coordination polymer networks for ratiometric detection of glyphosate in food samples[J]. FOOD CHEMISTRY,2020,323.
APA	Qu, Fei,Wang, Han,&You, Jinmao.(2020).Dual lanthanide-probe based on coordination polymer networks for ratiometric detection of glyphosate in food samples.FOOD CHEMISTRY,323.
MLA	Qu, Fei,et al."Dual lanthanide-probe based on coordination polymer networks for ratiometric detection of glyphosate in food samples".FOOD CHEMISTRY 323(2020).