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外消旋硒(硫)代缩水甘油醚手性拆分的热力学研究

Thermodynamic behaviors of racemic glycerin selenide or sulfide compounds on CDMPC-CSP
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摘要 在流动相组成为正己烷/异丙醇(80/20,+0.1%三氟乙酸,V/V),温度为291~313K条件下,考察了4种外消旋硒(硫)代缩水甘油醚手性拆分的热力学行为。计算了对映体与固定相相互作用的焓变以及焓变差值和熵变差值等热力学参数。手性色谱柱填料为自制的纤维素-三(3,5-二甲基苯基氨基甲酸酯)手性固定相。实验结果表明,在考察的温度范围内,随温度升高,样品的保留、分离因子均减小,分离度呈不同的变化,4种手性样品对映体的拆分过程都是焓控过程。 The thermodynamic behaviors of racemic glycerin selenide or sulfide compounds on CDMPC chiral stationary phase (CDMPC -CSP) was investigated with a mobile phase consisting of n -hexane/2 -propanol/ CF3COOH ( 80/20/0.1, v/v). CDMPC - CSP was cellulose tris ( 3,5 - dimethylphenylcarbamate ) coated on APS silica gel, prepared by ourselves. The thermodynamic parameters such as △ ( △ H^0 )and △ ( △S^0 )of enantiomers interated with CSP were calculated. The enthalpy - controlled separations for all samples were observed in the temperature range examined.
出处 《化学工程师》 CAS 2008年第1期1-3,共3页 Chemical Engineer
基金 甘肃省科技厅自然科学基金项目资助(32S042-B25-020) 甘肃省科技攻关计划项目资助(2GS064-A52-036-06) 兰州交通大学"青蓝"人才工程基金项目资助
关键词 高效液相色谱 纤维素-三(3 5-二甲基苯基氨基甲酸酯) 手性固定相 对映体分离 热力学行为 high performance liquid chromatography cellulose tris ( 3,5 - dimethylphenylcarbamate ) chiral stationary phase enantioseparation thermodynamic behavior
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  • 1侯经国 周宏英 蒋生祥.Chem J Chin Univ(高等学校化学学报)[J],1998,19(4):538-538.
  • 2Welch C J. Evolution of chiral stationary phase design in the Pirkle Laboratories [J]. J Chromatogr A, 1994, 666:3 -26.
  • 3Davankov V A. Chiral selectors with chelating properties in liquid chromatography: fundamental reflections and selective review of recent developments [J]. J Chromatogr A, 1994, 666:55 -76.
  • 4Yu Z W, Jiang S X, Liu X, et al. Optical resolution of glycerin sulfides and glycerin selenides on the chiral stationary phase of cellulose-tris ( 3,5-dimethyl phenylcarbamate [J]. Chirality, 1999, 11:598 - 601.
  • 5Allenmark S G, Anderason S,Proteins and peptides as chiral selectors in liquid chromatography [J]. J Chromatorgr A, 1994,666:167 - 179.
  • 6Yashima E, Okamoto Y. Chiral discrimination on polysaccharides derivatives [J]. Bull Chem Soc Jpn, 1995, 68:3289- 3307.
  • 7Nacro K, Zedde C, Escudier J M, et al. Influenee of the nature and substitution of chiral 2,3 - epoxy alcohol derivatives on the enantiomeric elution order on chiralcel OD column [ J ]. Chirality, 1998, 10:804 - 807.
  • 8Water M S, Sidler D R, Simon A J, et al. Mechanistic aspects of chiral discrimination by serface-immobilized α1-acid glycoprotein [J]. Chirality, 1999, 11:224 -232.
  • 9Wu Yue,Phytochem Anal,1991年,12卷,220页
  • 10达世禄,徐伟,董亚琼.手性高效液相色谱固定相[J].化学通报,1997(2):33-44. 被引量:24

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