Sensitive fluorescent detection of melamine in raw milk based on the inner filter effect of Au nanoparticles on the fluorescence of CdTe quantum dots

	Sensitive fluorescent detection of melamine in raw milk based on the inner filter effect of Au nanoparticles on the fluorescence of CdTe quantum dots
	Zhang M. W.; Cao X. Y.; Li H. K.; Guan F. R.; Guo J. J.; Shen F.; Luo Y. L.; Sun C. Y.; Zhang L. G.
	2012
发表期刊	Food Chemistry
ISSN	0308-8146
卷号	135 期号:3 页码:1894-1900
摘要	A simple, rapid and sensitive fluorescent assay for determination of melamine has been developed based on inner filter effect (IFE) of gold nanoparticles (AuNPs) on the fluorescence of CdTe quantum dots (QDs). When thioglycolic acid-capped CdTe QDs was mixed with citrate-stabilized AuNPs, the fluorescence of CdTe QDs was significantly quenched via the IFE of AuNPs. With the presence of melamine, melamine could induce the aggregation and corresponding absorbance change of AuNPs, which then resulted in the recovery of IFE-decreased emission of CdTe QDs. Under the optimum conditions, the detection limit for melamine in raw milk was 0.02 mg L-1. The application of this method in samples of melamine-spiked raw milk suggested a recovery between 103% and 104%. Therefore, the obvious merits provided by the present assay, such as simplicity, rapidity, low cost, and high sensitivity, would make it promising for on-site screening of melamine adulterant in raw milk. (C) 2012 Elsevier Ltd. All rights reserved.
收录类别	SCI ; EI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/34110
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Zhang M. W.,Cao X. Y.,Li H. K.,et al. Sensitive fluorescent detection of melamine in raw milk based on the inner filter effect of Au nanoparticles on the fluorescence of CdTe quantum dots[J]. Food Chemistry,2012,135(3):1894-1900.
APA	Zhang M. W..,Cao X. Y..,Li H. K..,Guan F. R..,Guo J. J..,...&Zhang L. G..(2012).Sensitive fluorescent detection of melamine in raw milk based on the inner filter effect of Au nanoparticles on the fluorescence of CdTe quantum dots.Food Chemistry,135(3),1894-1900.
MLA	Zhang M. W.,et al."Sensitive fluorescent detection of melamine in raw milk based on the inner filter effect of Au nanoparticles on the fluorescence of CdTe quantum dots".Food Chemistry 135.3(2012):1894-1900.