Characterization of a Pesticide Formulation by Medium Wave Near-Infrared Spectroscopy with Uninformative Variable Elimination and Successive Projections Algorithm

Aug 13, 2014·

Guo Tang

Xiangzhong Song

Jing Hu

Hong Yan

Kaixian Qiu

Kuangda Tian

Yanmei Xiong

Shungeng Min

· 1 min read

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Abstract

Near-infrared (NIR) spectroscopy, a rapid and nondestructive analytical method, has been widely used in many fields. In this paper, medium wave near-infrared (MWNIR) was used to determine the active ingredient of a deltamethrin formulation. An uninformative variable elimination-successive projections algorithm (UVE-SPA) was employed to investigate effective variables and was compared with UVE, SPA, and full-spectrum partial least squares (PLS) regression. The results indicate that MWNIR was able to determine the pesticide active ingredient and that UVE-SPA was an efficient variable selection approach by eliminating spectral redundancy and colinearity. The developed method is a meaningful exploration in the application of near-infrared spectroscopy and provides a valuable reference on pesticide quality control.