MethodsPart 1: The reversed-phase column was a Fuji Silysia Cig column (250X4.6 mm, made in China). The mobile phase was phosphate buffer (0.05M, pH=6.0).

• 第一部分:用国产CI。 反相色谱柱为固定相，以磷酸盐缓冲液(0.；OSM，pH=6)为流动相，流速lml/分钟，进样量20林1，柱温保持室温，检测波长