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DOI: 10.1371/journal.pone.0154402
Title:
Highly Sensitive Detection of Melamine Using a One-Step Sample Treatment Combined with a Portable Ag Nanostructure Array SERS Sensor
Author: Jie Cheng; Xiao-Ou Su; Yue Yao; Caiqin Han; Shi Wang; Yiping Zhao
Source Publication: PLOS ONE
ISSN: 1932-6203
Indexed By: SCI-E
Publishing Year: 2016
Date Published: 2016-4-27
Volume: 11, Issue:4
Language: 英语
Keyword: Lasers ; Density functional theory ; Acid deposition ; Liquid-liquid extraction ; Near-infrared spectroscopy ; Signaling molecules ; Absorption spectroscopy ; Thin films
Subject in Chinese: 吸收 ; 酸沉降 ; 吸附作用 ; 密度
Subject: ABSORPTION ; ACID DEPOSITION ; DENSITY
English Abstract: 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.
Related Link: http://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0154402&type=printable
Citation statistics:
被引频次[WOS]:5   [查看WOS记录]     [查看WOS中相关记录]
Document Type: 期刊论文
Identifier: http://119.78.100.177/globalchange/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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Affiliation: 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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