期刊论文

Identification on Different Origins of Citri Reticulatae Pericarpium Using Near Infrared Spectroscopy Combined with Optimized Spectral Pretreatments

中文

分析测试学报

1004-4957

2021

40

01

65-71

10.3969/j.issn.1004-4957.2021.01.009

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）；

本校为第一机构

采集不同产地陈皮内侧和外侧的近红外光谱,采用不同光谱预处理方法进行预处理,筛选得到最佳光谱预处理方法,结合主成分分析法建立了陈皮产地的鉴别模型。实验发现,陈皮原始光谱中存在明显的基线漂移与背景干扰。使用单一光谱预处理可在一定程度上消除干扰的影响。经标准正态变量变换、多元散射校正、一阶导数、二阶导数与连续小波变换预处理后,陈皮内侧光谱数据可获得最优的鉴别结果,鉴别准确率为91.67%;通过最大最小归一化预处理后,陈皮外侧光谱数据可获得最优鉴别结果,鉴别准确率为70.83%;在2种预处理组合的鉴别结果中,有9个组合方式结合陈皮外侧光谱数据实现了对陈皮产地的100%鉴别分析,对于...

The near infrared spectra for the outer skin and inner capsule of citri reticulatae pericarpium from different habitats were collected.Different spectral pretreatment methods were used and the best method was selected.The identification model of citri reticulatae pericarpium origin was established by principal component analysis.It was found that there were obvious baseline drift and background interference in the raw spectra.The interferences could be eliminated to a certain extent by using single spectral pretreatment method.After using pretreatments of standard normal variate transform,mult...