白术与麸炒白术配方颗粒的红外光谱研究

Infrared Spectroscopic Study of Compound Rhizoma Atractylodis Macrocephalae Granula and Compound Bran-processed Rhizoma Atractylodis Macrocephalae Granula

目的建立白术与麸炒白术配方颗粒的红外光谱快速鉴别方法，为中药炮制品配方颗粒的真伪鉴别提供示范性研究。方法采用一维红外光谱及二阶导数光谱法分别对白术与麸炒白术配方颗粒进行红外光谱分析。结果白术和麸炒白术配方颗粒的一维红外光谱基本相似，后者在779cm一处出现特征吸收峰；白术和麸炒白术配方颗粒的二阶导数光谱在900～650cm^-1区域内的谱峰，其峰位置、强度、形状均存在一定的差异。结论通过比较不同级别的红外光谱，可以快速、准确地鉴别白术与麸炒白术配方颗粒。

Objective To establish a rapid Fourier transform infrared spectroscopy（FTIR） method for the identification of Compound Rhizoma Atractylodis Macrocephalae Granula and Compound bran-processed Rhizoma Atractylodis Macrocephalae Granula, and to supply evidence for the identification of processed Chinese herbal particulate formulations. Methods One-dimension infrared spectrum and second derivative spectrum were adopted for the identification of Compound Rhizoma Atractylodis Macrocephalae Granula and Compound bran-processed Rhizoma Atractylodis Macrocephalae Granula. Results The infrared spectrums of two kinds of formula granula were similar, and Compound bran-processed Rhizoma Atractylodis Macrocephalae Granula had the characteristic absorption peak at 779 cm-l. As for the second derivative spectra, the peak position, intensity and shape of the two kinds of formula granula were different in the range of 900-650 cm^-1. Conclusion The infrared spectroscopy can be used to identify Compound Rhizoma Atractylodis Macrocephalae Granula and Compound bran-processed Rhizoma Atractylodis Macrocephalae Granula rapidly and accurately.