科学技术的发展,使观察和研究生物组织的组织结构由过去的细胞水平转向分子水平,亚细胞水平。目前国内外利用原子吸收技术测定心肌组织中某些金属离子浓度的改变,尤其是钙离子浓度的改变,已作为研究心肌损伤的病理生理和进行心肌保护的重要指标之一。但国内有关报导几乎没有。本实验用火焰原子吸收法对心肌中的K、Na、Ca、Mg进行了最佳测定条件的选择. The development of science and technology has enabled the observation and study of the organizational structure of biological tissues from the cellular level in the past to molecular level and subcellular level. At present, the change of concentration of some metal ions in myocardial tissue by atomic absorption spectrometry, especially the change of calcium ion concentration, has been used as one of the important indexes to study the pathophysiology of myocardial injury and myocardial protection. However, almost none of the domestic reports. In this experiment, the optimal conditions of K, Na, Ca and Mg in myocardium were selected by flame atomic absorption spectrometry.