Grieve M C, Griffin R M, Malone R
KT33 Forensic Science Institute, Wiesbaden, Germany.
Sci Justice. 1998 Jan-Mar;38(1):27-37. doi: 10.1016/S1355-0306(98)72070-2.
The improved quality of spectra recorded using FTIR-microspectroscopy has meant that a lot more information is now obtainable from the spectra of dyed acrylic fibres. In addition to the main absorptions produced by the polymer material, additional absorptions resulting from the fibre dye are often present. An attempt has been made to explain some of the strongest and most frequently seen dye bands with the aid of spectra obtained from fibres treated with known dyes. Provided the dye concentration in the fibre is sufficient, it is possible to make some general observations on the type of dyes which have been used. Further investigation in conjunction with HPLC or FTIR-Raman spectroscopy would be useful.
使用傅里叶变换红外光谱 - 显微光谱法记录的光谱质量的提高意味着现在可以从染色腈纶纤维的光谱中获得更多信息。除了聚合物材料产生的主要吸收外，纤维染料产生的额外吸收也经常出现。已尝试借助从用已知染料处理过的纤维获得的光谱来解释一些最强且最常见的染料谱带。如果纤维中的染料浓度足够，就有可能对所使用的染料类型进行一些一般性观察。结合高效液相色谱法或傅里叶变换红外 - 拉曼光谱法进行进一步研究将是有用的。
