关于文献里配标样的方法?今天在一篇文献里看到这个配标样的方法:Standard stock solutions (多酚) were prepared by dissolving standards(1–6 mg) in a 1 mL HPLC grade methanol. Calibration concentrationswere prepared by complete evaporation of methanol fromaliquots (vacuum, 35 C) that were in turn re-dissolved in HPLCeluent (H2O/CH3COOH, 95:5, v/v) in the range as expected for eachcompound.请问为什么要先将标样溶解在 甲醇 里,再蒸干,再溶解到 乙酸 水溶液里,而不是直接把标样溶解到乙酸水溶液,再做稀释?谢谢!查看更多5个回答 . 6人已关注