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本文用高效液相色谱间接光度检测法测定了心脏停搏液中钠、钾、钙、镁的含量。以SoherisorbSCX为固定相，0．35mmol／L硫酸铈的[水-乙腈（85：15），并用磷酸调pH至3．2～3．4]溶液为流动相，亚铈离子作为流动相平衡离子直接应用光度检测器测定，并与其他测定方法比较。结果表明，分离度较好，104％＞回收率＞97％，线性关系良好。结果与滴定法相比无显著性差异。该法具有操作简便快速，灵敏准确，适于作为制剂中4种离子的常规检测方法。
The content of sodium, potassium, calcium and magnesium in cardioplegic solution was determined by indirect photometric detection of high performance liquid chromatography. The mobile phase consisted of Soherisorb SCX as stationary phase, 0.35 mmol / L cerous [water - acetonitrile (85:15), pH adjusted to 3.2-3.4 with phosphoric acid], and cerium ion as mobile phase counterbalance ion Direct application of photometric detector determination, and compared with other determination methods. The results showed that the separation was good, 104%> recovery> 97%, good linear relationship. Results and titration compared no significant difference. The method has the advantages of simple and quick operation, sensitive and accurate, and is suitable for routine detection of four kinds of ions in a preparation.