摘要
激光剥蚀技术与单接收或多接收电感耦合等离子体质谱法联用[LA-(MC)-ICP-MS]是一种重要的定量化学分析技术,由于其具有高空间分辨率、原位、实时、快速、宏观无损以及精确测量微量元素及同位素等优势,近年来在宝石学领域得到广泛应用。LA-(MC)-ICP-MS为区分天然与合成宝石、区分天然与优化处理宝石、追溯宝石产地、揭示宝玉石矿床成因提供了新的研究手段。本文概述了LA-ICP-MS的原理,并介绍了该技术在研究蓝宝石颜色环带、祖母绿产地溯源和祖母绿矿床成因方面的应用实例。LA-(MC)-ICP-MS原位微区化学分析技术提供了可靠的矿物成分信息,为宝石学的研究提供了广阔的空间。
Laser ablation with single-or multiple-collector inductively coupled plasma mass spectrometry[LA-(MC)-ICP-MS]is an important quantitative chemical analysis technique.It has been widely used in gemmology in recent years owing to its advantages of high spatial resolution,in situ,real-time,rapid,macroscopic non-destructive,and accurate measurement of trace elements and isotopes.The LA-(MC)-ICP-MS provides new tools to distinguish natural from synthetic and enhancing or treating gemstones,trace the geographic origin of gemstones,and reveal the genesis of gemstone deposits.In this paper,we introduce the principle of LA-(MC)-ICP-MS and present several research cases,including investigating the formation of colour zonation of sapphires,tracing the emerald geographic origin,and revealing emerald deposit genesis.The LA-(MC)-ICP-MS provides reliable chemical and compositional information of gemstones and offers a broad scope for gemmological research.
作者
余晓艳
龙政宇
张艺
刘飞
王光亚
郭鸿舒
郑育宇
YU Xiaoyan;LONG Zhengyu;ZHANG Yi;LIU Fei;WANG Guangya;GUO Hongshu;ZHENG Yuyu(School of Gemmology,China University of Geosciences,Beijing 100083,China;School of Earth Sciences and Resources,China University of Geosciences,Beijing 100083,China;Key Laboratory of Deep-Earth Dynamics,Institute of Geology,Chinese Academy of Geological Sciences,Beijing 100037,China)
基金
中国地质调查局中国矿产地质志项目(DD20190379-88)资助。
