Reagent generation assisted by ultrasonic irradiation

被引：12

作者：

Korn, M

Andrade, MVAS

Borges, SS

Sousa, CS

Oliveira, FS

机构：

[1] Univ Estado Bahia, Dept Ciencias Exactas & Terra, BR-41195001 Salvador, BA, Brazil

[2] Univ Fed Bahia, Inst Quim, BR-40170290 Salvador, BA, Brazil

来源：

JOURNAL OF THE BRAZILIAN CHEMICAL SOCIETY | 2003年 / 14卷 / 02期

关键词：

reagent generation; ultrasonic irradiation; free radicals; hydride; chromium oxidation;

D O I：

10.1590/S0103-50532003000200011

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In this work, the potential of reagent generation assisted by ultrasonic irradiation was evaluated for Cr(III) oxidation and arsine formation. Free radical formation by sonolysis of aqueous solutions was evaluated. The sonication of an aqueous solution saturated with CCl4 leads to chlorine radical formation while the irradiation of water in the presence of metallic zinc leads to hydrogen production. The low relative standard deviations of the proposed procedures indicate that the method can be applied for analytical purposes.

引用

页码：254 / 258

页数：5

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