Raman probing trace melamine in milk by a functionalized test paper

被引：8

作者：

Wang, Hui ^{[1
]}

Guo, Xiaoyu ^{[1
]}

Fu, Shuyue ^{[1
]}

Yang, Tianxi ^{[1
]}

Wen, Ying ^{[1
]}

Yang, Haifeng ^{[1
]}

机构：

[1] Shanghai Normal Univ, Dept Chem, Shanghai Key Lab Rare Earth Funct Mat, Key Lab Resource Chem,Minist Educ, Shanghai 200234, Peoples R China

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2014年 / 193卷

基金：

中国国家自然科学基金;

关键词：

Melamine; Gold nanoparticles; Tri-sodium citrate; Dodecasodium of phytic acid; Filter paper; Raman probe; LIQUID-CHROMATOGRAPHY; CYANURIC ACID; PHYTIC ACID; SPECTROSCOPY; FOODS; CONFIRMATION; CYROMAZINE; RESIDUES; POWDER;

D O I：

10.1016/j.snb.2013.12.024

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The rapid sensing for melamine in milk products has been developed with a portable Raman system based on the facile synthesis of tri-sodium citrate and dodecasodium of phytic acid (IP6) dual-functionalized gold nanoparticles modified filter paper, shortly named IP6-TC@Au NPs test paper. The tri-sodium citrate improved the sensitivity of Raman probe and the later kept the shelf stability. The limit of detection for melamine in water is 5 mu M (0.63 ppm) and it is 10 mu M (1.26 ppm) for testing real milk sample, which is well below the FDA's tolerance level of 2.5 ppm in milk. The proposed easy assay of IP6-TC@Au NPs test paper combining with portable Raman system could be applied for on-site monitoring melamine in milk products. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：630 / 636

页数：7

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