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中文摘要：
以N-异丙基丙烯酰胺（NIPAAM）为单体，乙二醇二甲基丙烯酸酯（EDMA）为交联剂，制备了一种能有效去除尿样中的大分子物质，并能同时富集尿样中氢化可的松的整体柱．实验结果表明：氢化可的松在5-30mg／L线性关系良好（R=0．9993，n=6），检测限为0．012mg／L；绝对回收率79％-83％；日内、日问精密度均〈5．0％，整体柱能够很好地富集尿样中的氢化可的松，并且能很好地除去尿样中的大分子物质及杂质，能满足分析的要求．
英文摘要：
A new monolithic column have been prepared which was composed of copolymer that the N- isopropylacrylamide （N-IPAAM） was the monomer and the ethyleneglycoldimethacrylate（EDMA） was the cross-linker. The monolith was used for removing the macromoleculer and enriching the hydrocortisone in urine sample. The result showed that hydrocortisone had a good linear（R=0. 999 3, n=6） when the con- centration of the hydrocortisone in the range of 5-30 mg/L , the limit of detection（LOD） was 0. 012 mg/L. The absolutely recovery was 79%-83%. The inter-day RSD and intra-day RSD was less than 5%. This method is conforming to analysis.
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