Visual detection of melamine in milk products by label-free gold nanoparticles - Details

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Abstract：

A　simple,　rapid,　field-portable　colorimetric　method　for　the　detection　of　melamine　based　on　melamine-induced　color　change　of　label-free　gold　nanoparticles　(Au　NPs)　was　developed　in　this　study.　Melamine　can　induced　the　aggregation　of　Au　NPs　and　results　in　the　color　change　from　wine-red　to　purple,　which　provided　a　platform　for　rapid　and　field-portable　colorimetric　detection　of　melamine.　The　proposed　method　can　be　used　to　detect　melamine　in　liquid　milk　and　infant　formula　with　a　detection　limit　of　1.0　and　4.2　ppm,　respectively,　within　30　min　by　naked　eyes　observation　without　the　aid　of　any　advanced　instrument　and　the　need　of　any　complex　pretreatment,　and　detect　as　low　as　0.15　ppm　of　melamine　in　liquid　milk　and　2.5　ppm　of　melamine　in　infant　formula　with　UV-vis-spectroscopy.　The　proposed　method　is　promising　for　on-site　screening　of　melamine　adulterant　in　milk　products.　©　2010　Elsevier　B.V.

Keyword：

Gold nanoparticles; Infant formula; Liquid milk; Melamine

Community：

[ 1 ] [Guo, L.]Key Laboratory of Analysis and Detection for Food Safety, Fuzhou University, Ministry of Education, Fuzhou, Fujian 350108, China
[ 2 ] [Guo, L.]Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, Fuzhou, Fujian 350108, China
[ 3 ] [Zhong, J.]Key Laboratory of Analysis and Detection for Food Safety, Fuzhou University, Ministry of Education, Fuzhou, Fujian 350108, China
[ 4 ] [Zhong, J.]Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, Fuzhou, Fujian 350108, China
[ 5 ] [Wu, J.]Key Laboratory of Analysis and Detection for Food Safety, Fuzhou University, Ministry of Education, Fuzhou, Fujian 350108, China
[ 6 ] [Wu, J.]Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, Fuzhou, Fujian 350108, China
[ 7 ] [Fu, F.]Key Laboratory of Analysis and Detection for Food Safety, Fuzhou University, Ministry of Education, Fuzhou, Fujian 350108, China
[ 8 ] [Fu, F.]Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, Fuzhou, Fujian 350108, China
[ 9 ] [Chen, G.]Key Laboratory of Analysis and Detection for Food Safety, Fuzhou University, Ministry of Education, Fuzhou, Fujian 350108, China
[ 10 ] [Chen, G.]Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, Fuzhou, Fujian 350108, China
[ 11 ] [Zheng, X.]Fujian Provincial Central Inspection Institute, Fuzhou, Fujian 350002, China
[ 12 ] [Lin, S.]Fujian Provincial Central Inspection Institute, Fuzhou, Fujian 350002, China

Reprint 's Address：

[Guo, L.]Key Laboratory of Analysis and Detection for Food Safety, Fuzhou University, Ministry of Education, Fuzhou, Fujian 350108, China

Email：

lqguo@fzu.edu.cn

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Talanta

ISSN： 0039-9140

Year： 2010

Issue： 5

Volume： 82

Page： 1654-1658

3 . 7 2 2

JCR@2010

5 . 6 0 0

JCR@2023

JCR Journal Grade：1

CAS Journal Grade：2

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SCOPUS Cited Count：

ESI Highly Cited Papers on the List： 0 Unfold All

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Chinese Cited Count：

30 Days PV： 1

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