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学科主题: Biochemistry & Molecular Biology ; Chemistry
题名: NOVEL DESIGN FOR CENTRIFUGAL COUNTERCURRENT CHROMATOGRAPHY: IV. FIGURE-8 COLUMN
作者: Gu Dongyu; Yang Yi; Eng Jennifer D.; Aisa Haji Akber; Ito Yoichiro
关键词: countercurrent chromatography ; dipeptide ; DNP-amino acid ; figure-8 column ; peak resolution ; retention of the stationary phase
刊名: JOURNAL OF LIQUID CHROMATOGRAPHY & RELATED TECHNOLOGIES
发表日期: 2010
DOI: 10.1080/10826070903574675
卷: 33, 期:4, 页:572-584
摘要: The toroidal columns using an equilateral triangular core, zigzag, and saw patterns has improved step by step both for retention of the stationary phase and peak resolution of the conventional toroidal coil in centrifugal countercurrent chromatography. To further improve the retention of stationary phase and peak resolution, a novel figure 8 toroidal coil was designed and the performance of the system was evaluated at various flow rates. In the figure-8 column with a capacity of 3mL, the peak resolution of dipeptides (Val-Tyr and Trp-Tyr) was 1.63, and that of DNP-amino acids (DNP-DL-glu, DNP - ala, DNP-L-ala) were 1.92 and 1.85, respectively. The results indicated that retention of stationary phase and peak resolution were improved at lower flow rates. The Rs with lower mobile phase can be further increased by modifying the tubing to form a flat twisted configuration. With a decreased column length with a capacity of about 0.1mL, resolution of the figure-8 column was 0.71 with about 40% retention of stationary phase at a flow rate of 0.005mL/min.
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内容类型: 期刊论文
URI标识: http://ir.xjipc.cas.cn/handle/365002/1779
Appears in Collections:资源化学研究室_期刊论文

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作者单位: NHLBI, NIH, Bethesda, MD 20892 USA;Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Urumqi, Peoples R China;Chinese Acad Sci, Grad Univ, Beijing, Peoples R China

Recommended Citation:
Gu Dongyu,Yang Yi,Eng Jennifer D.,et al. NOVEL DESIGN FOR CENTRIFUGAL COUNTERCURRENT CHROMATOGRAPHY: IV. FIGURE-8 COLUMN[J]. JOURNAL OF LIQUID CHROMATOGRAPHY & RELATED TECHNOLOGIES,2010,33(4):572-584.
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