摘要
苔藓植物是一类重要高等植物。但是,苔藓植物体型小,可供鉴别性状少。应用OMNI采样器 傅里叶变换红外光谱直接测定法鉴别植物样品具有简便、快速和准确的优点。应用傅里叶变换红外光谱直接测定法测定了苔藓植物2 6种30个样品的红外光谱,以波数吸光度为指标来表征吸收峰,以红外光谱图为对象,应用除趋势对应分析(DetrendedCorrespondenceAnalysis,DCA)比较了30个样品在红外光谱图上的差异程度。结果发现,基于傅里叶变换红外光谱的除趋势对应分析反映出苔藓植物红外光谱的差异与它们分类关系有较好的对应性。因此,应用傅里叶变换红外光谱直接测定法能够鉴别药用苔藓植物。
Bryophytes are important high plants. However, the plants of bryophyte are small in size with few identification characters. The identification of plant samples using Fourier transform infrared spectrometer with OMNI collector is simple, convenient, fast and accurate. In the present paper, Fourrier transform infrared spectrometer with OMNI collector was applied to gain the infrared spectra of 30 samples belonging to 26 bryophyte species. Based on the indices of wave number-absorbance, the differences of the 30 infrared spectra were compared by the method of Detrended Correspondence Analysis (DCA). The results showed that there is good correspondence between the position relationship of DCA two-dimensional plot of the samples based on the indices of wave number-absorbance of FTIR spectra and their classification relationship. Therefore, it is practical to apply the infrared spectra to identifying the false sample from the true one in medicine bryophytes.
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
2005年第4期525-528,共4页
Spectroscopy and Spectral Analysis
基金
国家自然科学基金 (39870 0 81 )
浙江省自然科学基金 (30 1 0 2 8
30 2 1 0 4 )资助项目
