Optimization in the formaldehyde determination at sub-PPM level from acetals by HPLC-DAD

被引：18

作者：

Medvedovici, A

David, V

David, F

Sandra, P

机构：

[1] Univ Bucharest, Fac Chem, Dept Analyt Chem, Bucharest 703461, Romania

[2] Res Inst Chromatog, B-8500 Kortrijk, Belgium

[3] State Univ Ghent, Organ Chem Lab, B-9000 Ghent, Belgium

来源：

ANALYTICAL LETTERS | 1999年 / 32卷 / 03期

关键词：

HPLC-DAD; formaldehyde; methylal; ethylal; 2,4-dinitrophenylhydrazine;

D O I：

10.1080/00032719908542840

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Determination of formaldehyde at sub-ppm level as impurity in acetals using HPLC-DAD is described. Automated on-line precolumn derivatization reaction with 2,4 dinitrophenylhydrazine has been used. Breakdown rates of some industrial scale used acetals (Methylal, Ethylal) to formaldehyde by hydrolysis in aqueous media, according to pH, are described.

引用

页码：581 / 592

页数：12

共 13 条

[1]

BENNASI CA, 1990, J CHROMATOGR, V502, P193

[2] THE CHEMISTRY OF CARBONYL-COMPOUNDS IN THE ATMOSPHERE - A REVIEW [J].