摘要
采用密度差分相液膜技术,以二(2 乙基己基)磷酸(P204)为载体,研究了L 苯丙氨酸(L phe)在密度差分相液膜中的传输.考察了表面活性剂质量分数、载体质量分数、初始料液酸度、油相与料液水相两相密度差、反萃液水相与油相两相密度差对L phe迁移率的影响,实验结果表明:密度差分相液膜对L phe有显著的迁移富集作用,在最佳传质条件下,L phe从料液水相向油相的迁移率接近100%,从油相向反萃液水相的迁移率达90 4%.
The transport of Lphenylalanine through the membrane with phases of different density was studied. The D2EHPA was employed to facilitate the extraction of Lphenylalanine. The effects of surfactant concentration and carrier concentration in the organic phase, pH values in the feed phase, the density differences between feed phase and organic phase and the density differences between stripping phase and organic phase were investigated. The experimental results showed: that Lphenylalanine was concentrated by the membrane with phases of different densities; under the optimal experimental conditions, the transport rate of Lphenylalanine from feed phase to organic phase reached 100% , and the transport rate of Lphenylalanine from organic phase to stripping phase reached 90.4%.
出处
《华南农业大学学报》
CAS
CSCD
北大核心
2003年第1期80-83,共4页
Journal of South China Agricultural University
基金
国家自然科学基金资助项目(29136133)
