| 刊名 | Medicinal Plant |
| 作者 | Zhe LIU, Xiaoyao GONG, Yuan LIU |
| 作者单位 | School of Physical Education and Health, Chengdu College of Arts and Sciences; College of Pharmacy and Food, Southwest Minzu University; College of Grassland Resources, Southwest Minzu University |
| DOI | DOI:10.19600/j.cnki.issn2152-3924.2026.04.002 |
| 年份 | 2026 |
| 刊期 | 4 |
| 页码 | 4-8，13 |
| 关键词 | Lapis lazuli, Heavy metal content, Complex processing |
| 摘要 | [Objectives] To determine the heavy metal content in lapis lazuli (complex processing) and provide a reference for establishing its heavy metal limit standards. [Methods] Seven batches of lapis lazuli (complex processing) samples were collected from Hongyuan County Tibetan Medicine Hospital, Aba Tibetan and Qiang Autonomous Prefecture Tibetan Medicine Hospital, and Aba County Tibetan Medicine Hospital. The contents of Hg, As, Pb, Cd, and Cu were determined using inductively coupled plasma mass spectrometry in accordance with General Rule 2321 of the Pharmacopoeia of the People's Republic of China (2020 Edition). Tests for heavy metal limits and arsenic salt limits were conducted according to General Rules 0821 and 0822, respectively. [Results] The Cu content in the seven batches of samples ranged from 8.49 to 21.41 mg/kg, As content ranged from 6.82 to 16.87 mg/kg, Hg content ranged from 0.03 to 0.62 mg/kg, and Pb content ranged from 3.66 to 26.98 mg/kg. Cd was not detected in any of the samples. The contents of heavy metals varied considerably among samples from different origins. The heavy metal limit test yielded a result of ≤50 mg/kg, while the arsenic salt limit test produced a result of ≤40 mg/kg. [Conclusions] The heavy metal content in various processed lapis lazuli products varies significantly. Processing technology is an important factor influencing the heavy metal content. This study provides fundamental data for the development of processing specifications and quality standards for lapis lazuli. |
