生物样品无机前处理方法研究进展

Research Progress in Inorganic Pretreatment of Biological Samples

生物样品元素分析是生态地球化学、环境化学、农业土壤和医学等学科领域研究的重要手段。生物样品具有组成复杂,有机质含量高、基体干扰较大、部分无机元素含量低的特点,其无机前处理技术是生物样品无机元素分析的最关键步骤,必须选择科学、合理、高效的前处理方法进行消解,以保证消解后的溶液适用于对应的无机元素分析。本文针对生物样品的特殊性,对生物样品不同的无机前处理方法的国内外研究进展进行了综述,重点对各方法的优缺点、影响因素及适用的无机元素分析进行了系统论述,认为当前各无机前处理方法都存在一定的缺陷,需要根据待测元素的性质、实验成本、分析效率、结果准确等因素综合选择最优的前处理方法。未来开发更多、更高效的生物样品原位分析技术是弥补目前各无机前处理方法缺陷的重要手段。

Element analysis of biological samples is an important means of research in fields such as ecological geochemistry,environmental chemistry,agricultural soil,and medicine.Biological samples have the characteristics of complex composition,high organic matter content,significant matrix interference,and low content of some inorganic elements.The inorganic pre-treatment technology is the most crucial step in the analysis of inorganic elements in biological samples,and scientific,reasonable,and efficient pre-treatment methods must be selected for digestion to ensure that the digested solution is suitable for the corresponding inorganic element analysis.In this paper,we reviewed the research progress of different inorganic pre-treatment methods for biological samples both domestically and internationally,focusing on the advantages and disadvantages,influencing factors,and applicable inorganic element analysis of each method.It is believed that all current inorganic pre-treatment methods have certain shortcomings,and it is necessary to consider the properties,the experimental costs,the analytical efficiency,the accuracy of the results,and other factors to choose the optimal preprocessing method.In the future,the development of more and more efficient techniques for in situ analysis of biological samples is an important means to make up for the shortcomings of the current inorganic pre-treatment methods.