摘要
利用傅里叶红外光谱仪对辣木籽、松子和火麻子进行傅里叶变换红外光谱和二维相关红外光谱研究。结果显示,辣木籽、松子和火麻子的FTIR光谱在1 800~700cm^(-1)范围有差异,光谱主要由油脂、碳水化合物和蛋白质峰构成。二维相关红外光谱在960~1 300cm^(-1)范围,辣木籽有6个自动峰,松子和火麻子有2个自动峰,自动峰强度差异较大。在1 400~1 780cm^(-1)范围,三者的同步谱中自动峰的数量、强度和位置都不同。结果表明傅里叶变换红外光谱结合二维相关红外光谱能够有效的区分辣木籽、松子和火麻子。
Fourier transform infrared spectroscopy（FTIR）combined with two-dimensional correlation infrared spectroscopy（2DIR）was used to study moringa seed,pine nut,and cannabis sativa L..The results showed that their spectra were different in the range of 1 800700 cm-1,which were composed of absorption peaks of oil,carbohydrates and protein.In two-dimensional correlation infrared spectra in the range of 9601 300 cm-1,moringa seed has 6 auto-peaks,and there are two auto-peaks for pine nut and cannabis,and the intensity and position of the auto-peaks were obviously different.The differences were also exhibited in the 2D-IR spectra in the range of 1 4001 780 cm-1.The results show that FTIR spectroscopy combined with 2D-IR spectroscopy can effectively distinguish moringa seed from pinenuts and cannabis sativa L..
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
2018年第S1期53-54,共2页
Spectroscopy and Spectral Analysis
基金
国家自然科学基金项目(31760341)
云南省高校科技创新团队支持计划项目资助
