Author： Vigerust B. Kolset K. Nordenson S. Henriksen A. Kleveland K.
Publisher： Society for Applied Spectroscopy
ISSN： 0003-7028
Source： Applied Spectroscopy, Vol.45, Iss.2, 1991-02, pp. : 173-177
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Abstract
Multivariate calibration methods have been used to establish a new method for measurements of three selected additives in low-density polyethylene. The determination of the concentration of silica, erucamide, and butylhydroxytoluene (BHT) is based on infrared (IR) spectroscopy and a calibration model. The concentrations are between 20 and 1100 wt/ppm. Compared to traditional chemical analyses, the new method is both time and cost effective and is more precise. The method has potential for quality control of polyethylene.
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