Detection of melamine in powdered milk using surface-enhanced Raman scattering with no pretreatment

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Year 2010 
Journal Info. Analytical Letters, 43, 2135-2141 (2010). 
Author So Yeong Lee, Erdene-Ochir Ganbold, Jaebum Choo and Sang-Woo Joo 
etc.  

Abstract

We detected a trace amount of melamine in powdered milk using surface enhanced Raman scattering (SERS) on gold surfaces at an excitation wavelength of 632.8 nm. A detection limit of 100 ppm (μg/g) melamine in milk was attained within a few minutes by the gold nanoparticle substrate from chemical reduction; whereas, better sensitivity, as low as 200 ppb (ng/g), was achieved by the roughened gold substrate. Our method has the advantage of fast and sensitive detection of melamine in powdered milk without pre-treating the samples.

 

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Year Title Journal Info. etc.
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