二维相关近红外光谱分析技术判别天然绿棉掺杂中的应用研究  

Classification of adulterated natural colored cotton by two dimensional correlation near-infrared spectroscopy analytical technology

作　　者：陈斌[1] 刘苔苔 王晓娟[2] 王豪[2] 陆道礼[1] 

机构地区：[1]江苏大学食品与生物工程学院,江苏镇江212013 [2]宁波出入境检验检疫局,浙江宁波315000

出　　处：《应用化工》2017年第9期1830-1834,共5页Applied Chemical Industry

基　　金：国家自然科学基金资助项目(31271874);国家质检总局科技计划项目(2015IK183);宁波市自然基金(2014A610116)

摘　　要：以天然绿棉、染色绿棉、天然绿棉+50%染色绿棉、天然绿棉+30%染色绿棉等4组棉花为研究对象,采用近红外光谱技术结合二维相关光谱分析技术对天然绿棉中是否掺入染色绿棉进行判别。结果表明,4组绿棉在4 000~5 500 cm^(-1)波段范围内二维相关近红外光谱图在自动峰和交叉峰的出峰数目、位置及峰强上有明显的差异。这表明二维相关近红外光谱技术可以快速判别天然绿棉的掺杂,为天然彩棉掺杂的识别提供一种新的方法。Two dimensional correlation near-infrared spectroscopy was used to classify natural green cot-ton, dyed green cotton, natural green cotton mixed with 5 0 % dyed green cotton, natural green cotton mixed with 30% dyed green cotton. The results show that there are significant differences in the number,position and peak intensity of two dimensional correlation near-infrared spectroscopy for the 4 kinds of green cotton over the wavenumber range of 4 000 - 5 500 cm- 1. It demonstrates that two dimensional correlation near-infrared spectroscopy can identify adulterated natural green cotton, providing a new method for the identi-fication of adulterated natural colored cotton.

关 键 词：天然绿棉 近红外光谱 二维相关光谱 

分 类 号：TQ91[化学工程] O654.9[理学—分析化学]