聚有机硅包覆高分子薄膜在红外分析中的应用(英文)

Analytical Applications of Infrared Transparent Thin Films with Polyorganosilane Coatings

使用气体溶胶以及离心旋转两种方法将吸附剂包覆于红外透明薄膜的表面,在光谱分析中起到预富集水相中有机污染物的作用。考察了包括聚四氟乙烯(PTFE),ParafilmTM,聚乙烯(PE),聚丙烯(ProleneTM),聚酯(MylarTM)在内的红外透光薄膜作为红外分析中的载体对有机物进行分析表征的能力。光谱分析数据证明,这些薄膜具有被用作吸附剂的载体的潜力,它们可以使水相中的有机污染物可以沉积在薄膜包覆层。通过气体溶胶以及离心旋转两种方式,聚有机硅被成功地涂在高分子薄膜的表面,对水相中的苯含量可以进行μL/L级别的检测。

Aerosol and spin methods were used for coatings on transmission films for preconcentrating organic compounds in water samples prior to IR analysis. Polymer films including polytetrafluoroethylene （PTFE）, ParafilmTM, polyethylene （PE）, polypropylene （ProleneTM）, and polyester （MylarTM） have been investigated for their suitability as host substrates for characterizing organic compounds in IR analysis. The spectroscopic studies of these films provide useful information for their potential ability to be used as substrates for the deposition of sorbent coatings. Polyorganosilane （POS） was successfully coated onto polymer films by both aerosol and spin method for the analysis of benzene in water samples down to μL/L levels.