University of Miami (Florida) assistant professor in the College of Engineering, Na Li and her collaborators have developed a fast, economical and easy method to detect melamine in milk.
Melamine is the compound found in contaminated pet food and in tainted dairy products from China. The laced dairy products were responsible for sickening thousands of people, especially children. The situation caused recalls of Chinese dairy products all over the world.
The new method is described in the study titled "Rapid Detection of Melamine in Whole Milk Mediated by Unmodified Gold Nanoparticles," published online by the journal Applied Physics Letters.
This study develops a facile and accurate approach towards detection of melamine utilizing gold nanoparticles and a dual color and precipitation test. The complete detection methodology is completed in less than 15 minutes.