摘要
本文主要研究了应用高效液相色谱仪准确测定磺化酚醛树脂在生产过程中产生的游离苯酚含量的方法。采用的实验条件主要有:空间排阻凝胶色谱柱(Sephadex G-10),20℃柱温和0.01mol/L的氢氧化钠流动相,其中流动速度为0.5ml/min,流动时间为30min。检测器根据其中各种组分的不同紫外吸收特性来区分磺化酚醛树脂产品和游离苯酚。在以上条件下,实验有效分离了磺化酚醛树脂和其中的游离苯酚,本方法可以作为磺化酚醛树脂工业生产中控制产品反应程度的有效方法之一。
A high performance liquid chromatographic （HPLC） method was developed for the separation of formaldehyde and phenol from the other components of resol resins. The sample was dissolved in mine in order that formalde-hyde was derivatized to aOH as thow rate of 0.5mL/min. The results showed that the determination of phenol. The relative standarddeviations （RSDs） of the contents of SMP were below 5%, With thismethod, phenol in the SMP can be determined by only one injection.As a result, this method would meet effective control for quality of this kind of SMP.
