Determination of nonylphenol and nonylphenol ethoxylates in pulp samples by Py-GC/MS期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Determination of nonylphenol and nonylphenol ethoxylates in pulp samples by Py-GC/MS

Affiliation:	1. Department of Materials Engineering and Convergence Technology, Engineering Research Institute, Gyeongsang National University, Jinju 660-701, Republic of Korea;2. Korea Institute of Materials Science, Changwon 641-010, Republic of Korea;3. Agency for Defense Development, 4-R&D Center, Daejeon 305-600, Republic of Korea;4. Department of Mechanical Engineering, The University of Utah, Salt Lake City, UT 84112, USA;1. EPSP-TIMC (CNRS UMR 5525), Université Grenoble Alpes, TIMC-IMAG, F-38000 Grenoble, France;2. Laboratoire de Toxicologie Professionnelle et Environnementale, DBTP, CHU de Grenoble, France

Abstract:	We have developed a method for ascertaining the presence of nonylphenol (NP) and nonylphenol ethoxylates (NPEs) in pulp samples at very low levels. The method entails pre-concentration of the compounds and their detection by Py-GC/MS. Solvent extraction of the compounds from pulps with acetone gives better recoveries than desorption of the compounds from the pulps by gas stripping. The detection limit for NPEs with our technique is as low as 0.003 ppm in pulp sheets.

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