矿物药龙骨与伪品现代动物骨骼的对比研究

Comparative study on mineral medicine Os Draconis(Longgu)and counterfeit modern animal skeleton

目的:从微观、图谱、化学成分上对龙骨进行真伪鉴定,为龙骨的质量控制和评价方法提供参考。方法:根据龙骨矿物特性,利用显微镜观察、近红外光谱、X射线荧光光谱仪进行鉴定研究,对比真伪品龙骨单偏光、正交偏光镜下特征,以正品龙骨的近红外光谱为参照,建立真伪龙骨定性鉴别模型,分析龙骨内元素检测结果。结果:正品龙骨呈磷灰石光学特性,与动物骨骼伪品龙骨有较大区别,正品较现代动物骨骼伪品P、Ca相对较少,但富集元素Sr、F,利用近红外特征谱段可建立有较好预测能力的相关系数模型。结论:偏光显微镜、近红外光谱法、X射线荧光光谱法可提高龙骨的真伪鉴别结果正确率。

Objective:To identify the authenticity of Longgu from the microscopic,infrared spectrum and chemical composition,and provide references for the Longgu`s quality control and evaluation methods.Methods:According to the mineral characteristics of Longgu,the identification research was carried out by microscope observation,near-infrared spectroscopy and X-ray fluorescence spectrometer.By comparing the single polarizing and orthogonal polarizing characteristics of genuine and fake Longgu,a qualitative identification model of genuine Longgu was established based on the near infrared spectrum of genuine Longgu and the detection results of elements in Longgu were analyzed.Results:The genuine Longgu had apatite optical properties,which was quite different from the fake Longgu of animal bones.Compared with modern animal bones,genuine Longgus had relatively less P and Ca,but they were enriched in elements Sr and F.The correlation coefficient model with good predictive ability can be established by using the near infrared characteristic spectrum.Conclusion:Polarizing microscope,near infrared spectroscopy and X-ray fluorescence spectroscopy can improve the identification results of Longgu.