Rapid separation of Sudan dyes by reverse-phase high performance liquid chromatography through statistically designed experiments

被引:66
作者
Zhang, YP
Zhang, YJ
Gong, WJ
Gopalan, AI
Lee, KP [1 ]
机构
[1] Kyungpook Natl Univ, Grad Sch, Dept Chem, Taejon, South Korea
[2] Henan Inst Sci & Technol, Xinxiang 453003, Peoples R China
[3] Zhengzhou Univ, Dept Chem, Zhengzhou 453000, Peoples R China
[4] Alagappa Univ, Dept Ind Chem, Karaikkudi 630003, Tamil Nadu, India
关键词
liquid chromatography; central composite designs; optimization Sudan dyes; multi-criteria decision;
D O I
10.1016/j.chroma.2005.10.024
中图分类号
Q5 [生物化学];
学科分类号
071010 ; 081704 ;
摘要
Central composite design (CCD) was effectively employed to decide optimum conditions for the rapid separation of Sudan dyes using reversephase high performance liquid chromatography (HPLC). Twenty experiments, taking the minimum resolution and retention time of the last eluted peak as the responses with three important factors, mobile phase composition, flow rate and column temperature, were used to design a mathematical model. The experimental responses were fitted into a second order polynomial and used to predict the optimum conditions for the effective separation of the studied compounds. Further, chromatographic separation efficiency was tested through generation of Pareto-optimal points. The validity of using modified central composite design in predicting the optimization conditions was experimentally verified. The optimum conditions were: acetonitrile/0.1 % aqueous formic acid (90/10, %v/v) as the mobile phase, at a flow rate of 1.2 mL/min and column temperature of 15 degrees C, respectively. While using this optimum condition, baseline separation with a minimum resolution more than 1.5 and a separation time of less than 6 min were achieved. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码:183 / 187
页数:5
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