| 刊名 | Medicinal Plant |
| 作者 | Haiyan GUO， Zhuyun YAN， Jie JIANG， Bo LEI |
| 作者单位 | Chengdu University of Traditional Chinese Medicine； Sichuan Institution of Geological Engineering Investigation Group Co.,Ltd. |
| DOI | 10.19601/j.cnki.issn2152-3924.2025.01.004 |
| 年份 | 2025 |
| 刊期 | 1 |
| 页码 | 19-22 |
| 关键词 | Longgu, Polarizing microscope, Near-infrared spectroscopy, X-ray fluorescence spectroscopy, Identification |
| 摘要 | [Objectives] To identify the authenticity of Longgu from the microscopic, infrared spectrum and chemical composition, and provide references for the quality control and evaluation methods of Longgu. [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, and 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. [Conclusions] Polarizing microscope, near-infrared spectroscopy and X-ray fluorescence spectroscopy can improve the identification results of Longgu. |
