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本文研究了GDX—502树脂对水中微量混合一元酚的富集作用，以及影响富集回收率的某些因素；对富集和洗脱机理也进行了初步探讨．实验结果表明，GDX—502是水中微量酚类化合物较好的富集剂，二氧六环是较好的洗脱剂。除2．4—二销基酚外，对8种一元酚的平均富集回收率为93．7％，平均洗脱率为96.5％。GDX—502对水中酚类的富集作用是以VanderWaals力和较氢键弱的π—键合作用力为基础的物理吸附，而二氧六环洗脱酚类的实质是氢键作用．
In this paper, the effects of GDX-502 resin on the concentration of trace monohydric phenol in water and some factors that affect the recovery of enrichment were investigated. The enrichment and elution mechanism were also discussed. The experimental results show that GDX-502 is a better enrichment agent for trace phenols in water, and dioxane is a better eluent. Except for 2.4-di-pinhenol, the average recoveries of eight monophenols were 93.7% and the average elution rate was 96.5%. The enrichment of phenols in water by GDX-502 is based on the physical adsorption of van der Waals forces and weak π-bond interactions, whereas the digestion of phenols by dioxane is essentially a hydrogen bond.