National Research Institute of Police Science, Kashiwa, Chiba, Japan.
Forensic Sci Int. 2010 Apr 15;197(1-3):75-9. doi: 10.1016/j.forsciint.2009.12.057. Epub 2010 Jan 12.
Classification of acrylic and rubber-based pressure sensitive adhesives (PSAs) of colorless and transparent oriented polypropylene adhesive tapes distributed in Japan according to matrix-assisted laser desorption/ionization (MALDI) mass spectrum has been studied. MALDI mass spectra of acrylate oligomers and emulsifiers were observed from tetrahydrofuran extracts of acrylic PSAs, and aliphatic petroleum resin, aliphatic-aromatic copolymer and unknown additives were from 2-butanone extracts of rubber-based PSAs. Acrylic PSAs were classified into 10 groups and rubber-based PSAs were into 8 groups. The criteria for the classification according to the MALDI mass spectrum were clearer than according to FT-IR spectrum.
已研究根据基质辅助激光解吸/电离（MALDI）质谱对分布在日本的无色透明定向聚丙烯胶带的丙烯酸酯和橡胶基压敏胶（PSA）进行分类。从丙烯酸 PSA 的四氢呋喃提取物中观察到丙烯酸酯低聚物和乳化剂的 MALDI 质谱，而从橡胶基 PSA 的 2-丁酮提取物中观察到脂肪族石油树脂、脂肪族-芳族共聚物和未知添加剂。丙烯酸 PSA 分为 10 组，橡胶基 PSA 分为 8 组。根据 MALDI 质谱进行分类的标准比根据傅里叶变换红外光谱（FT-IR）更为清晰。
