A method based on coffee-ring deposition confocal Raman spectroscopy of analysis of melamine in milk

Zong Tan; Da Chen

doi:10.1117/12.2245521

31 October 2016 A method based on coffee-ring deposition confocal Raman spectroscopy of analysis of melamine in milk

Zong Tan, Da Chen

Proceedings Volume 10024, Optics in Health Care and Biomedical Optics VII; 1002426 (2016) https://doi.org/10.1117/12.2245521
Event: SPIE/COS Photonics Asia, 2016, Beijing, China

Abstract

In this work, an economical and high-efficiency method for detection of melamine in milk was developed. The enrichment effect of coffee-ring was combined with the micro-region analysis of confocal Raman spectroscopy, in addition, assisted with chemometric algorithmthe. Consequently, a desired result was obtained that the LOD of melamine in this method was 1 ppm, which was excellent because the sensitivity of conventional Raman detection was generally low. Furthermore, the whole process were processed in an easily available condition with almost no chemical reagents consumption, and the chosen substrates for the formation of coffee-ring were reusable. Thus, the method is environmental friendly and has a great potential application in food safety inspection.

Citation Download Citation

Zong Tan and Da Chen "A method based on coffee-ring deposition confocal Raman spectroscopy of analysis of melamine in milk", Proc. SPIE 10024, Optics in Health Care and Biomedical Optics VII, 1002426 (31 October 2016); https://doi.org/10.1117/12.2245521

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