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SIMPLE PRETREATMENT AND PORTABLE UV-VIS SPECTRUM INSTRUMENT FOR THE RAPID DETECTION OF MELAMINE IN MILK PRODUCTS
Xie, Wanyi1; Huang, Yu1; Yun, Wen2; Tang, Dongyun1; Zhang, Hua1; Du, Chunlei1; Zhu, Yonghong2; Zhang, Wei1
2015-08-01
摘要In this paper, we report a simple and reliable method for detection of melamine (MEL) in the field of milk products safety screening. This method is developed based on gold nanoparticle (AuNP) probe as the presence of MEL can induce the AuNPs to aggregate and make its color change from wine red to purple. This color change can be quantitatively recorded by a portable UV-vis spectrophotometer so as to calculate the amount of MEL simultaneously. Herein, alcohol is used as MEL extraction solvent without other complex sample processing method because alcohol can easily denature the casein in milk. Furthermore, under the optimized condition, only about 15 min for whole detection process is required to determine the amount of MEL in milk, and the detection limit of MEL can be as low as 2 ppm.
DOI10.1111/jfq.12146
发表期刊JOURNAL OF FOOD QUALITY
ISSN0146-9428
卷号38期号:4页码:297-304
通讯作者Huang, Y (reprint author), Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Key Lab Multiscale Mfg Technol, Chongqing 400714, Peoples R China.
收录类别SCI
WOS记录号WOS:000362526000008
语种英语