实时直接分析质谱技术在中药分析中的应用

Applications of Direct Analysis in Real-Time Mass Spectrometry in Traditional Chinese Medicines Analysis

  • 摘要: 以中药为代表的天然药物具有悠久的药用历史,其功效物质基础解析和质量评价对于促进中医药的传承和创新发展具有重要意义。由于中药化学组成复杂,准确分析和鉴定与临床药效密切相关的指标成分较为困难,亟需开发和运用新型分离表征手段。实时直接分析质谱(direct analysis in real-time mass spectrometry, DART-MS)是近年来新兴的常压敞开式离子化质谱技术,具有分析速度快、原位、样品前处理简单等特点。自2005年被报道以来,DART-MS在生物医学、环境监测、公共安全、药物分析等领域应用广泛。该技术为解析中药复杂化学成分和质量控制提供了新方式,具有较好的应用前景。本文概述了DART-MS技术的原理、特点、影响因素及技术进展,总结其在中药分析中的应用情况,并展望其发展前景。

     

    Abstract: Direct analysis in real-time mass spectrometry (DART-MS) is an emerging in-situ ionization mass spectrometry analysis technology in recent years. DART is a non-contact surface desorption ionization technique, which is based on the principle of using helium or nitrogen as the working gas and generating excited high-energy particles by electric discharge. The excited state particles are accelerated by rapid heating and electric force, which instantly ionize the volatile compounds on the surface of the sample to be measured under atmospheric pressure, and then detected by mass spectrometry, thus achieving real-time direct analysis of the sample. DART-MS has the characteristics of simple sample preparation, quick and in-situ analysis. Since DART-MS was reported in 2005, it has become one of the most broadly used direct analysis methods and is extensively applied for the direct analysis of the quality, safety, origin and characteristics of food samples. Besides, it has been widely used in biomedicine, environmental monitoring, public safety, and drug analysis as well. Traditional Chinese medicines (TCMs) have been used for thousands of years in China, which gradually move towards to the world arena. The composition of TCM is very complicated, often containing many different chemical components of different types and properties, such as flavonoids, alkaloids, terpenoids, etc. Therefore, the analysis of the chemical basis of the efficacy and quality evaluation of TCMs are very crucial. In recent years, the development of DART-MS technology has provided many new opportunities for direct and rapid analysis of active ingredients in TCMs. The review was focused on the applications of DART-MS in TCMs, which covered the principle, characteristics, influencing factors and technological progress of DART-MS technology, and systematically summarized the research and application of this technology in TCMs, including qualitative and quantitative analysis. In addition, this review briefly introduced the progress of the application of DART-MS in combination with other techniques, such as thin-layer chromatography, imaging mass spectrometry and solid-phase microextraction in the profiling of TCMs, and provided further perspectives on its application development.

     

/

返回文章
返回