![](https://csdnimg.cn/release/download_crawler_static/19273759/bg1.jpg)
第 28 卷第 3 期 高 校 化 学 工 程 学 报
No.3
Vol.28
2014 年 6 月 Journal of Chemical Engineering of Chinese Universities
June
2014
文章编号:1003-9015(2014)03-0443-06
链甾醇在五种有机溶剂中溶解度的测定、关联及预测
许青青
1, 2
, 苏宝根
1
, 陈 蔚
1
, 杨亦文
1
, 任其龙
1
(1. 浙江大学生物质化工教育部重点实验室, 浙江大学 化学工程与生物工程学系, 浙江 杭州 310027;
2. 衢州学院化学与材料工程学院, 浙江衢州 324000)
摘
要:实验测定了链甾醇在正己烷、丁酮、正丁醇、
DMSO
、乙酸等五种有机溶剂中的溶解度,填补溶解度数据空
白。采用理想溶液、
Apelblat
和
COSMO-RS
模型对链甾醇的溶解度进行了关联和预测,通过平均相对偏差
(ARD)
评价
各模型的关联或预测效果。理想溶液和
Apelblat
模型对实验数据关联的
ARD
均小于
11.0%
,但都没有预测新系统溶解
度的能力。
COSMO-RS
预测结果误差大。通过改进,预测时输入一个实验数据,结果预测值与实验值吻合得较好,总
的
ARD
从
304.30
%降为
26.98
%。上述结果表明只需一个实验数据的
COSMO-RS (ref)
可用于链甾醇溶解度的预测,为
工业分离纯化过程中的溶剂快速筛选提供重要的理论依据。
关键词:链甾醇
;
溶解度;
COSMO-RS
;
COSMO-RS(ref)
中图分类号:
TQ027.36
;
O645.12
文献标识码:
A DOI
:
10.3969/j.issn.1003-9015.2014.03.001
Determination, Correlation and Prediction of Solubilities of Desmosterol in Five
Organic Solvents
XU Qing-qing
1, 2
, SU Bao-gen
1
, CHEN Wei
1
, YANG Yi-wen
1
, REN Qi-long
1
(1. Key Laboratory of Biomass Chemical Engineering of Ministry of Education, Department of Chemical and
Biological Engineering, Zhejiang University, Hangzhou 310027, China; 2. College of Chemical and Material
Engineering, Quzhou University, Quzhou 324000, China)
Abstract: The solubilities of desmosterol in n-hexane, 2-butanone, 1-butanol, DMSO, acetic acid were
determined. The results were correlated and predicted with ideal solution, Apelblat equation and COSMO-RS
models, respectively, and average relative deviations (ARD) were used to evaluate these models. The ARDs of
experimental data correlated by ideal solution and Apelblat equation are less than 11.0%, however which have
no prediction capability for determining the solubility of desmosterol in these systems. COSMO-RS prediction
results were extremely dissatisfying, but the predicted values can be in agreement with the experimental values
by using one experimental value. The total ARD for desmosterol in above five pure solvents can be reduced to
26.98% for COSMO-RS (ref) from 304.30%. The results show that COSMO-RS (ref) with only one
experimental data can be used for the prediction of desmosterol solubility in organic solvents, which is useful in
rapid selecting suitable solvents for industrial separation and purification.
Key words: desmosterol; solubility; COSMO-RS; COSMO-RS (ref)
1 前 言
链甾醇又名 3β-羟基-5,24-胆甾二烯、24-去氢胆固醇,英文名 3β-cholesta-5,24-dien-3-ol, desmosterol,
CAS No:313-04-2,分子式 C
27
H
44
O,其分子结构见图 1。
链甾醇与胆甾醇的分子结构非常相似,不仅具有胆甾醇的一些生理作用,而且作为许多具有生理活性
的甾类化合物的合成初始原料比胆甾醇更有优势,广泛应用于医药、食品、化工、生化等领域。例如链甾
收稿日期:2013-02-03;修订日期:2013-05-16。
基金项目:国家“十二五”科技支撑计划项目(2011BAD23B03);国家自然科学基金重点项目(20936005)资助。
作者简介:许青青(1969-),女,浙江东阳人,衢州学院副教授,硕士。通讯联系人:杨亦文,E-mail
ceywyang@zju.edu.cn