中文摘要：

应用电可控液晶光谱成像装置,测定不同市售来源的西洋参饮片,以期为其质量控制提供新的方法。系统光谱分辨率5nm,光谱覆盖范围为405～680nm,空间分辨率50lp·mm-1。从成像光谱立方体中提取特征光谱曲线,构建饮片指纹图谱;采用主成分等聚类分析方法解析其指纹图谱,用于饮片真伪鉴别与质量判定。结果与性状,显微及理化鉴定结果相吻合。表明光谱成像分析技术可用于中药指纹图谱的构建和质量评价,操作方法简便、快速、无损。

英文摘要：

Radix Panacis quinquefolii pieces coming from different drug stores were tested by crystal liquid spectral imaging instrument, and a new method for quality control was presented. The spectral resolution is 5 nm, the spectral range is from 405 to 680 nm, and the spatial resolution is 50 lp·mm-1.The characteristic spectrum from spectral cube was used to construct the fingerprint of Radix Panacis quinquefolii, and the fingerprint was analyzed by principal method to identify the counterfeit and to evaluate the quality. The result is fully consistent with biological character and chemical analysis result. So the technology is suitable for fingerprint construction and quality evaluation of traditional Chinese medicine. The whole testing process is noninvasive, fast and convenient.