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近红外光谱法快速鉴别复方鱼腥草片
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| 篇名： | 近红外光谱法快速鉴别复方鱼腥草片 |
| TITLE： | |
| 摘要： | 目的：建立快速鉴别复方鱼腥草片（A公司）的方法。方法：利用近红外漫反射光谱（NIRDRS）技术，用光纤探头测定样品近红外光谱，通过一致性指数（CI）值和CI限度比较法建立一致性检验模型。选择谱段为9 002～7 497.8 cm－1、6 903.8～5 596.4 cm－1和5 002.4～4 246.4 cm－1，预处理方法为一阶导数+矢量归一化，平滑点数为17， CI值为7.0；通过相关系数（r）法建立特征谱段r模型，选择谱段为6 200～5 500 cm－1、5 000～4 700 cm－1，预处理方法为一阶导数，平滑点数为17； r阈值为97％。结果：两个模型均可快速鉴别并准确区分复方鱼腥草片（A公司）与其他生产厂家的同类产品，验证样品的CI值均＞7.0，r均＜97％。结论：该方法简便、快速，可用于复方鱼腥草片的现场快速筛查。 |
| ABSTRACT： | OBJECTIVE： To establish a method of quick identification of Fufang yuxingcao tablel（manufactured by A）. METHODS： NIRDRS was adopted， the near-infrared diffuse reflectance spectrum were recorded by a fiber optic probe， and the conformity test model was established through the consistency index （CI） value and the CI limit comparison method. The spectral range of 9 002 -7 497.8 cm－1，6 903.8-5 596.4 cm－1 and 5 002.4-4 246.4 cm－1 was selected as the characteristic spectral band， the spectra were preprocessed by first derivation and vector normalization with 17 smoothing points， and 7.0 was set as the CI value； the characteristic spectrum correlation coefficient model was established through the correlation coefficient method， the spectral range of 6 200 -5 500 cm－1，5 000-4 700 cm－1 was selected as the characteristic spectral band， the spectra were preprocessed by first derivation with 17 smoothing points， and 97％ was set as the threshold. RESULTS： The above established models can rapidly identify and accurately distinguish Fufang yuxingcao tablet （manufactured by A） from similar products of other manufacturers， the CI value of the validation samples was beyond 7.0， the correlation coefficient （r） were less than 97％ compared with the reference sample. CONCLUSIONS： The method is simple and rapid， and can be used for fast screening of Fufang yuxingcao tablet. |
| 期刊： | 2016年第27卷第24期 |
| 作者： | 鲁艺，闫研，闫凯，刘凯双，殷果，王珏，王铁杰 |
| AUTHORS： | LU Yi，YAN Yan，YAN Kai，LIU Kaishuang，YIN Guo，WANG Jue，WANG Tiejie |
| 关键字： | 近红外光谱；一致性检验；相关系数；复方鱼腥草片；快速鉴别 |
| KEYWORDS： | Near-infrared spectroscopy； Conformity test； Correlation coefficient； Fufang yuxingcao tablet； Quick identification |
| 阅读数： | 215 次 |
| 本月下载数： | 5 次 |
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