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DOI:	10.1371/journal.pone.0154402
论文题名:	Highly Sensitive Detection of Melamine Using a One-Step Sample Treatment Combined with a Portable Ag Nanostructure Array SERS Sensor
作者:	Jie Cheng; Xiao-Ou Su; Yue Yao; Caiqin Han; Shi Wang; Yiping Zhao
刊名:	PLOS ONE
ISSN:	1932-6203
出版年:	2016
发表日期:	2016-4-27
卷:	11, 期:4
语种:	英语
英文关键词:	Lasers ; Density functional theory ; Acid deposition ; Liquid-liquid extraction ; Near-infrared spectroscopy ; Signaling molecules ; Absorption spectroscopy ; Thin films
英文摘要:	There is an urgent need for rapid and reliable methods able to detect melamine in animal feed. In this study, a quick, simple, and sensitive method for the determination of melamine content in animal feed was developed using surface-enhanced Raman spectroscopy on fabricated Ag nanorod (AgNR) array substrates with a one-step sample extraction procedure. The AgNR array substrates washed by HNO3 solvent (10−7 M) and methanol and showed the good stability within 6 months. The Raman shift at △ν = 682 cm−1 was used as the characteristic melamine peak in the calculations. Sufficient linearity was obtained in the 2–200 μg·g−1 range (R2 = 0.926). The limits of detection and quantification were 0.9 and 2 μg·g−1, respectively. The recovery rates were 89.7–93.3%, with coefficients of variation below 2.02%. The method showed good accuracy compared with the tradition GC-MS analysis. This new protocol only need 2 min to fininsh the detection which could be developed for rapid onsite screening of melamine contamination in quality control and market surveillance applications.
URL:	http://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0154402&type=printable
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资源类型:	期刊论文
标识符:	http://119.78.100.158/handle/2HF3EXSE/23670
Appears in Collections:	过去全球变化的重建影响、适应和脆弱性科学计划与规划气候变化与战略全球变化的国际研究计划气候减缓与适应气候变化事实与影响

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作者单位:

Institute of Quality Standards and Testing Technologies for Agro-products, Chinese Academy of Agricultural Sciences, Beijing, China;Institute of Quality Standards and Testing Technologies for Agro-products, Chinese Academy of Agricultural Sciences, Beijing, China;School of Physics and Electronic Engineering, Jiangsu Normal University, Jiangsu, China;School of Physics and Electronic Engineering, Jiangsu Normal University, Jiangsu, China;Institute of Quality Standards and Testing Technologies for Agro-products, Chinese Academy of Agricultural Sciences, Beijing, China;Department of Physics and Astronomy, University of Georgia, Athens, United States of America

Recommended Citation:

Jie Cheng,Xiao-Ou Su,Yue Yao,et al. Highly Sensitive Detection of Melamine Using a One-Step Sample Treatment Combined with a Portable Ag Nanostructure Array SERS Sensor[J]. PLOS ONE,2016-01-01,11(4)

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