Abstract
In recent years, the development of reliable methods for the quantitation of microplastics in different samples, including evaluating the particles’ adverse effects in the marine environment, has become a great concern. Because polyolefins are the most prevalent type of polymer in personal-care products containing microplastics, this study presents a novel approach for their quantitation. The method is suitable for aqueous and hydrocarbon-based products, and includes a rapid sample clean-up involving twofold density separation and a subsequent quantitation with high-temperature gel-permeation chromatography. In contrast with previous procedures, both errors caused by weighing after insufficient separation of plastics and matrix and time-consuming visual sorting are avoided. In addition to reliable quantitative results, in this investigation a comprehensive characterization of the polymer particles isolated from the product matrix, covering size, shape, molecular weight distribution and stabilization, is provided. Results for seven different personal-care products are presented. Recoveries of this method were in the range of 92–96 %.
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Hintersteiner, I., Himmelsbach, M. & Buchberger, W.W. Characterization and quantitation of polyolefin microplastics in personal-care products using high-temperature gel-permeation chromatography. Anal Bioanal Chem 407, 1253–1259 (2015). https://doi.org/10.1007/s00216-014-8318-2
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DOI: https://doi.org/10.1007/s00216-014-8318-2