近红外光谱法快速评估松花粉片薄膜包衣效果

Rapid Evaluation on the Film Coating Effect of Pine Pollen Tablets by Near Infrared Spectroscopy

摘要:

本研究利用近红外漫反射检测技术评估松花粉片薄膜包衣效果，判定松花粉片是否达到包衣终点。采用傅里叶变换近红外光谱仪对松花粉片样品进行扫描，选择平滑（17平滑点）+矢量归一化+一阶导数谱图预处理方法对松花粉片近红外原始谱图进行预处理消除各种干扰因素，在7500~4000 cm-1波段，利用OPUS分析软件中合格性测试方法建立松花粉片合格性测试模型，模型合格性指数设定为4。利用合格性测试方法建立松花粉片合格性测定模型，评估松花粉片薄膜包衣效果，结果表明该方法可快速评估松花粉片包衣效果，判定松花粉片包衣时间为120 min时75.6%的样品达到包衣终点。该方法不需对样品进行化学处理，方便快捷，可快速、准确的评估包衣效果，判定松花粉片是否达到包衣终点，为松花粉片薄膜包衣终点在线检测技术研究提供基础。

Abstract:

In this study, near-infrared diffuse reflection detection technology was used to evaluate he film-coating effect of Guozhen pine pollen tablets and determine whether the tablets reached the coating end point. Fourier transform near infrared spectrometer was used to scan pine pollen tablet samples, and the obtained near-infrared original spectra were pre-treated to eliminate interfering factors using smooth (17 smooth points) + vector normalization + first spectrum pre-processing method. Within 7500~4000 cm-1, Guozhen pine pollen tablet conformity test model was established using OPUS analysis software with the model conformity test index set as 4, The conformity test method was used to establish a conformity determination model of pine pollen tablets to evaluate the film-coating effect of Guozhen pine pollen tablets. The results showed that this method could rapidly evaluate the coating effect of Guozhen pine pollen tablets and determine that 75.6% of Guozhen pine pollen tablets could reach its coating end point when the film coating time was 120 min. This method does not require chemical treatment of the sample and is convenient and fast. The method can rapidly and accurately evaluate the coating effect and determine whether the pine pollen tablets have reached the coating end point, providing a basis for the research on the online detection of the film coating end point of pine pollen tablets.