关键词: 貉, 狼, 毛发, 绒毛, 针毛, 红外光谱

Abstract: [Objective] To investigate the hair infrared spectral characterization of Nyctereutes procyonoides and Canis lupus.[Method] Infrared spectroscopy was employed to analysis the Nyctereutes procyonoides villus and guard hairs from different body parts,and compared it with the infrared spectral of Canis lupus hair.[Results] The results showed that the infrared spectrum both detected from villus and guard hairs of Nyctereutes procyonoides could reflect the varietal characteristic of hair composition which can be regarded as a maker for Nyctereutes procyonoides hair identification.Compared to other part of the Nyctereutes procyonoides guard hair,the infrared spectrum of middle part can reflect the species characteristics clearer which should be treated as an effective position for infrared spectrum detection.Though the hair infrared spectral and second order derivative spectrum can detect the relationship between Nyctereutes procyonoides and Canis lupus,intervarietal distinction is still exist.Such as,there is a distinct difference of the peak shape and the peak position between the range of 655-685cm^-1 and 640-624cm^-1,and a typical characteristic absorption peak was occurred at 795cm^-1 1of the second order derivative spectrum of Nyctereutes procyonoides.The peak strong of seven sharper single peak reduced in turn at the range of 706-769cm^-1,but the peak strong of eight single peak of Canis lupus varied greatly.[Conclusion] The infrared spectral can be applied in the research of animal hairs and the second order derivative spectrum is better for species identification which has broad application and prospects in the research of hair.

Key words: Nyctereutes procyonoides, Canis lupus, hair, villus, guard hairs, infrared spectrum