OZONE INTERFERENCE IN THE DETERMINATION OF NITROGEN-DIOXIDE BY A MODIFIED MANUAL SALTZMAN METHOD

被引：11

作者：

ADEMA, EH ^{[1
]}

机构：

[1] DUTCH STATE MIN, CENT LAB, GELEEN, NETHERLANDS

来源：

ANALYTICAL CHEMISTRY | 1979年 / 51卷 / 07期

关键词：

D O I：

10.1021/ac50043a051

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

To determine whether ozone interference occurs in a modified manual Saltzman nitrogen dioxide procedure, several experiments were performed using dynamic mixtures of nitrogen dioxide and ozone. Two types of sample bottle were used in the examination. In one of them no ozone interference was observed. Apparently the ozone was destroyed before it reached the Saltzman reagent. With the sample bottle of the second type, a negative interference was observed caused by the reaction of NO2 and O3 in all probability in the aqueous solution of the reagent. However, a positive ozone interference could be observed if the Saltzman reagent contained impurities. No reaction of ozone with the Saltzman reagent or the azo dye agent occurred. The negative interference dependent on the ratio of ozone to nitrogen oxide as found by Baumgardner could not be confirmed. © 1979, American Chemical Society. All rights reserved.

引用

页码：1002 / 1006

页数：5

共 5 条

[1] DETERMINATION OF AN OZONE INTERFERENCE IN CONTINUOUS SALTZMAN NITROGEN-DIOXIDE PROCEDURE [J].