近红外光谱结合一致性检验对铁棍山药的鉴别研究  

The discrimination of Tiegun Yam using NIR combine conformity test

作　　者：龚海燕[1] 宋瑞丽[2] 李珊[1] 陈志红[1] 白雁[1] 

机构地区：[1]河南中医学院,河南郑州450008 [2]郑州铁路职业技术学院,河南郑州450052

出　　处：《计算机与应用化学》2010年第7期967-969,共3页Computers and Applied Chemistry

基　　金：河南省杰出人才项目(08420051017);河南省重大公益性项目(081100912500)

摘　　要：目的:利用近红外光谱技术快速鉴别铁棍山药和非铁棍山药。方法:采用二阶导数+矢量归一化法的光谱预处理方法,在(8 624.7～6 418.4)cm^(-1)和(5 693.2～4 242.9)cm^(-1)波长区间内提取信息,利用近红外光谱结合一致性检验对铁棍山药和非铁棍山药共115份样品进行鉴别研究。结果:以一致性指数CI=4为划分标准,光谱一致性指数在4以下的为铁棍山药,光谱一致性指数在4以上的为非铁棍山药。该方法能准确快速地鉴别铁棍山药。结论:近红外光谱分析技术是一种非常实用的新型分析测试技术,实验表明利用近红外光谱技术结合一致性检验鉴别铁棍山药的方法是可行的,为山药药材的鉴别以及中药的质量控制提供了一种快速可靠的检测方法。Objective：The possibility of near infrared（NIR） spectroscopy combine with conformity test to discriminate tiegun yam and non-tiegun yam was investigated.Method：We selected Second Derivative ＋ Normalization to preprocess all the original NIR spectra. Then we distilled effective information between（8 624.7～6 418.4）cm-1 and（5 693.2～4 242.9）cm-1.Results：The experiment indicated that it was feasible to take the conformity index of the sample as the division standard.The conformity index of the tiegun yam below 4 and the non-tiegun yam above 4.The 115 samples were identified successfully.Conclusions：NIR spectroscopy technique is a very new analytical technique in the 21 century.NIR spectroscopy technique was clarified to be a rapid and non-destructive method for discriminating tiegun yam and can provide effective quality control of Rhizoma Dioscoreae.

关 键 词：近红外光谱 铁棍山药 一致性检验 

分 类 号：TQ46[化学工程—制药化工] O6-39[理学—化学]