Keywords high-performance liquid chromatography;tetrahydrofolate;5-methyltetrahydrofolate;methylenetetrahydrofolate reductase;methionine synthase;

• 高效液相色谱;四氢叶酸;5甲基四氢叶酸;亚甲基四氢叶酸还原酶;甲硫氨酸合成酶;