摘要
用紫外吸收光谱上所有数据点计算样品紫外光谱与多个对照样品紫外光谱的相似度并求出平均值,通过该平均值与阈值的比较对样品质量进行评价;并通过掺兑试验考察紫外指纹图谱用于烟用香精质量控制的可行性。结果表明:1)紫外光谱相似度能敏感反映谱图间的差异;2)能够快速、准确地反映烟用香精的质量状况。因此,根据紫外光谱相似度大小可实现对烟用香精的质量控制。
Similarity was calculated based on data of two UV-spectrum curves, thus the sample quality was evaluated according to average value of similarity of UV-spectra between sample with each of standard samples. Feasibility of applying ultraviolet fingerprint spectrum in tobacco flavor quality control was examined with mixing tests. Results showed that ： 1 ） the calculated similarity with the proposed method can be sensitive to show difference between UV-spectra;2） ultraviolet fingerprint spectrum reflected quality of tobacco flavor exactly and quickly. The proposed method can be used to evaluate quality of the tobacco flavor according to similarity oftwo UV-spectrum curves.
出处
《中国烟草学报》
EI
CAS
CSCD
2009年第4期19-21,共3页
Acta Tabacaria Sinica
关键词
香精
紫外
指纹图谱
相似度
tobacco flavor
ultraviolet
fingerprint spectrum
similarity
