INTERFERENCES OF NITROGEN-DIOXIDE IN THE DETERMINATION OF ALDEHYDES AND KETONES BY SAMPLING ON 2,4-DINITROPHENYLHYDRAZINE-COATED SOLID SORBENT

被引：71

作者：

KARST, U ^{[1
]}

BINDING, N ^{[1
]}

CAMMANN, K ^{[1
]}

WITTING, U ^{[1
]}

机构：

[1] UNIV MUNSTER,INST ARBEITSMED,W-4400 MUNSTER,GERMANY

来源：

FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY | 1993年 / 345卷 / 01期

关键词：

D O I：

10.1007/BF00323325

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The influence of nitrogen oxides on the practicability and accuracy of the determination of aldehydes and ketones in air samples using the DNPH-method was examined. Nitrogen dioxide reacts with 2,4-dinitrophenylhydrazine and the reaction products were identified as 2,4-dinitrophenylazide (main product) and 2,4-dinitrochlorobenzene (by-product). They have a similar chromatographic behaviour in high performance liquid chromatography (HPLC) as formaldehyde-2,4-DNP-hydrazone. The chromatographic separation of the reaction products and formaldehyde-2,4-dinitrophenylhydrazone was performed using different gradient systems. Problems which occur in nitrogen dioxide-containing air samples are discussed.

引用

页码：48 / 52

页数：5

共 18 条

[1]

BACKHAUSEN P, 1985, FRESENIUS Z ANAL CHE, V320, P347

[2]

BALMAT JL, 1985, AM IND HYG ASSOC J, V46, P578, DOI 10.1080/15298668591395364

[3] SAMPLING OF FORMALDEHYDE IN AIR WITH COATED SOLID SORBENT AND DETERMINATION BY HIGH-PERFORMANCE LIQUID-CHROMATOGRAPHY [J].