期刊论文

A Non-destructive Identification Method for Different Varieties and Adulterate Notoginseng Based on Near-infrared Spectroscopic Technique

中文

分析测试学报

1004-4957

2021

40

09

1374-1379

10.19969/j.fxcsxb.20122904

国家自然科学基金（31601551,31671931）； 湖南省自然科学基金（2019JJ50240）； 湖南省教育厅科学研究项目优秀青年项目（18B118）； 中国博士后科学基金面上项目（2019M650187）；

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基于近红外光谱技术与化学计量学方法,提出了一种不同品种及掺假三七的快速无损鉴别方法。分别采集景天三七、菊三七、血三七、田三七完整、粉末及掺假样品的近红外光谱,采用单一和组合预处理方法消除光谱中的干扰,筛选出最佳的预处理方法;结合主成分分析法建立不同品种以及掺假三七样品的鉴别模型。结果表明:结合主成分分析,采用原始光谱即可实现粉末及掺假样品的100%鉴别分析,而完整样品由于受到物理性状的干扰,其原始光谱数据的品种鉴别率仅为9.38%;而经连续小波变换预处理后可达93.75%。采用组合预处理方法可以进一步消除光谱存在的多种干扰,显著提高完整样品的鉴别准确性,采用去偏移+一阶导...

Based on near-infrared spectroscopy and chemometrics,a rapid and non-destructive identification method for different varieties and adulterate notoginseng was proposed. Meanwhile, samples of Sedum notoginseng,Chrysanthemum notoginseng,Xue notoginseng and Tian notoginseng were collected,and the near-infrared spectra for complete,powder and adulterated samples were obtained. Single and combined pretreatment methods were used to eliminate the interferences in the spectra,in which the best pretreatment method was screened out. Combined with the principal component analysis method,the identification...