Determination of aliphatic alcohols after on-line microwave-assisted derivatization by liquid chromatography-photodiode array detection

被引：21

作者：

Chávez, G ^{[1
]}

Bravo, B ^{[1
]}

Piña, N ^{[1
]}

Arias, M ^{[1
]}

Vivas, E ^{[1
]}

Ysambertt, F ^{[1
]}

Márquez, N ^{[1
]}

Cáceres, A ^{[1
]}

机构：

[1] Univ Zulia, Fac Ciencias, Dept Quim, Lab Petroquim & Surfactantes, Zulia 4005, Venezuela

来源：

TALANTA | 2004年 / 64卷 / 05期

关键词：

continuous analysis; on-line systems; microwave assisted reaction; polyethoxylated alcohol surfactants;

D O I：

10.1016/j.talanta.2004.05.055

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

In this study, high-performance liquid chromatography (HPLC) in conjunction with continuous derivatization for the determination of aliphatic and polyethoxylated alcohol is reported. Reaction of alcohol group with phenyl isocyanate or benzyl chloride reagents assisted with microwaves (MW) irradiation is carried out in an on-line system coupled to HPLC with photodiode array detection (PDA). Reactor was placed into a microwave oven at 450 W. The flow rate, reagent amounts, irradiation time, and chromatographic conditions were optimized. The continuous analysis using the system MW-HPLC-PDA provided high sensitivity, reduce the amount of reagents and analysis time. This proposed method can be used for the analysis of commercial alcohol polyethoxylated mixture. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：1323 / 1328

页数：6

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