【摘要】 采用傅里叶变换红外光谱的各种测定方法测定了植物中药材白术,通过白术木质部及外表皮部的水平衰减全反射傅里叶变换红外光谱(HATR-FTIR)吸收比较,表明了外表皮含有更多的白术内酯及其衍生物等物质。新鲜的白术木质部比干燥白术木质部含有更多的化学物质,这可能是样品干燥后挥发油减少之故。对白术木质部及其伪品的木质部的HATR-FTIR进行二阶导数转换,进行峰位一致率检验,结果差异极显著。更多还原

【Abstract】 The present paper used many kinds of mensuration of FTIR spectroscopy to determine traditional Chinese drugs-Rhizoma Atractylodis Macrocephalae. Comparing the horizontal attenuated total reflection-Fourier transform infrared spectra(HATR-FTIR) of xylem and outer layer parts of cuticle indicates that there are more butenolide and its derivatives in outer layer parts of cuticle. Much more chemical materials could be found in fresh sample than in drying sample, possibly due to the decreased amount of naphtha in the drying sample. The HATR-FTIR of xylem of Rhizoma Atractylodis Macrocephalae and its confusable varieties were transformed into second derivative FTIR to make sure whether the peak location is consistent. As a result, the difference is significant.更多还原