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Applied Spectroscopy

Applied Spectroscopy

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  • Vol. 67, Iss. 12 — Dec. 1, 2013
  • pp: 1363–1367

Discrimination of Adulterated Milk Based on Two-Dimensional Correlation Spectroscopy (2D-COS) Combined with Kernel Orthogonal Projection to Latent Structure (K-OPLS)

Renjie Yang, Rong Liu, Kexin Xu, and Yanrong Yang

Applied Spectroscopy, Vol. 67, Issue 12, pp. 1363-1367 (2013)


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Abstract

A new method for discrimination analysis of adulterated milk and pure milk is proposed by combining two-dimensional correlation spectroscopy (2D-COS) with kernel orthogonal projection to latent structure (K-OPLS). Three adulteration types of milk with urea, melamine, and glucose were prepared, respectively. The synchronous 2D spectra of adulterated milk and pure milk samples were calculated. Based on the characteristics of 2D correlation spectra of adulterated milk and pure milk, a discriminant model of urea-tainted milk, melamine-tainted milk, glucose-tainted milk, and pure milk was built by K-OPLS. The classification accuracy rates of unknown samples were 85.7, 92.3, 100, and 87.5%, respectively. The results show that this method has great potential in the rapid discrimination analysis of adulterated milk and pure milk.

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Citation
Renjie Yang, Rong Liu, Kexin Xu, and Yanrong Yang, "Discrimination of Adulterated Milk Based on Two-Dimensional Correlation Spectroscopy (2D-COS) Combined with Kernel Orthogonal Projection to Latent Structure (K-OPLS)," Appl. Spectrosc. 67, 1363-1367 (2013)
http://www.opticsinfobase.org/as/abstract.cfm?URI=as-67-12-1363

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