METHOD FOR THE SAMPLING AND ANALYSIS OF SULFUR-DIOXIDE

被引：4

作者：

SHANTHI, K ^{[1
]}

BALASUBRAMANIAN, N ^{[1
]}

机构：

[1] INDIAN INST TECHNOL,DEPT CHEM,MADRAS 600036,TAMIL NADU,INDIA

来源：

FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY | 1995年 / 351卷 / 07期

关键词：

D O I：

10.1007/BF00323348

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A sensitive spectrophotometric method for the determination of SO2 after fixing in a new trapping solution of NaOH-citrate is described. The method is based on the redox reaction of SO2 with bromate in acid medium to liberate bromine which brominates 2',7'-dichlorofluorescein (DCF) and subsequent measurement of the brominated product at 535 nm in an organic phase. Absorption characteristics of the developed trapping solution and application studies are also described. The relative standard deviation was 3.8% (10 mu g SO2). Interferences by NO2 and H2S were eliminated.

引用

页码：685 / 686

页数：2

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