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为了定量分离和提取包休中液相微量组分,已报道电渗析法和提取过滤法。前法有拖尾现象,耗时颇长。后法由于SiO_2的吸附和溶解可给随后的分析带来一定的困难。为免此弊,作者曾提出较简便、快速的研磨-离子交
Electrodialysis and extraction filtration have been reported for the quantitative separation and extraction of liquid-phase micro-components during the rest of the pack. Law before the trailing phenomenon, time-consuming. After the method due to the adsorption and dissolution of SiO 2 can bring some difficulties for the subsequent analysis. To avoid this disadvantage, the authors have proposed a more simple and rapid grinding - ion exchange