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本文通过对区域熔炼原理及液-液萃取技术的探讨,发展了一种简单高效的基于冷冻熔炼的液-液萃取样品富集新技术.通过理论分析,探讨了冷冻熔炼、常温液-液萃取以及冷冻熔炼液-液萃取中溶质浓度的分布特征,通过富集效率的探讨证明冷冻熔炼液-液萃取技术是液-液萃取与区域熔炼技术的结合.通过葡萄汁样品的分析,对该技术进行了评价.理论计算求得冷冻熔炼液-液萃取中相应组分的富集效率为4.5,而试验测得富集效率为4.8,两者结果一致,说明冷冻熔炼液-液萃取是一种简单高效的样品富集技术.
In this paper, a simple and efficient new technique for enrichment of liquid-liquid extraction samples based on the smelting is developed through the discussion of the principle of regional melting and liquid-liquid extraction.According to the theoretical analysis, And the distribution characteristics of solute concentration in liquid-liquid extraction of frozen smelting, the enrichment efficiency of the study shows that the frozen smelting liquid-liquid extraction technology is a combination of liquid-liquid extraction and regional smelting technology.Based on the analysis of grape juice samples, .The results show that the enrichment efficiency of the corresponding components in the frozen smelting liquid-liquid extraction is 4.5, and the enrichment efficiency measured in the experiment is 4.8, the two results are consistent, indicating that the liquid-liquid extraction of frozen smelting is a Simple and efficient sample enrichment technology.