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试样用 pH =3～ 4的新蒸二次蒸馏水溶解 ,以 pH =3～ 4新蒸二次蒸馏水为流动相 ,用Nova-packC18柱分离 ,紫外检测器 ( 2 1 0nm)检测 ,外标法定量。本方法的相对标准偏差为 0 .5 % ,平均回收率为 99.4% ,完成一次分析只用 5分钟。
The sample was dissolved in freshly distilled twice-distilled water with pH = 3-4, and freshly distilled twice-distilled water (pH = 3-4) was used as the mobile phase. The sample was separated on a Nova-pack C18 column and detected by a UV detector (210 nm) Legal quantity. The relative standard deviation of this method was 0.5% with an average recovery of 99.4%. Only 5 minutes were needed to complete one analysis.