瑞士AVL986－S电解质分析仪采用离子电极选择性原理，用直接电位法一次进样可同时测定体液中K＋、Na＋、Cl－、TCO2浓度．该机由微电脑自动控制，仅需按Yes，No键实现人机对话，操作简便，测量快速，结果准确．但其配套进口试剂价格昂贵，为节省资金，我们根据仪器、试剂的特点 The AVL986-S Electrolyte Analyzer of Switzerland adopts the principle of ion electrode selectivity. The concentration of K+, Na+, Cl-, and TCO2 in body fluids can be measured simultaneously with a direct potentiometric method. The machine is automatically controlled by a microcomputer. It is only necessary to press the Yes, No buttons to realize the man-machine dialogue. The operation is simple, the measurement is fast, and the result is accurate. However, the cost of its imported reagents is expensive. In order to save money, we have the characteristics of instruments and reagents.