INDIRECT ATOMIC-ABSORPTION SPECTROMETRIC DETERMINATION OF AMMONIA, THIOSULFATE AND CYANIDE IN AN UNSEGMENTED FLOW SYSTEM

被引：19

作者：

ESMADI, FT

KHAROAF, M

ATTIYAT, AS

机构：

[1] Attiyat Department of Chemistry, Yarmouk University, Irbid-Jordan

来源：

ANALYTICAL LETTERS | 1990年 / 23卷 / 06期

关键词：

Ammonia; Atomic Absorption Spectroscopy; Cyanide Flow Injection Analysis; Indirect Analysis; Thiosulfate;

D O I：

10.1080/00032719008053446

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A flow injection analysis method (FIA), has been developed for the determination of cyanide, thiosulfate and ammonia by atomic absorption spectrometry (AAS). Aqueous solution of the analyte was injected into an on-line column containing glass beads and packed with silver chloride and deionized water was used as the carrier. The analyte dissolves the silver chloride and the dissolved silver complex is introduced to the nebulizer of the AAS, This method has proved to be sensitive, -7 simple and precise. Detection limits of 1. 0x10-7 M, 5.0x10-7 M and 5.0x10-6 M were obtained for thiosulfate, cyanide and ammonia, respectively. The precision of the. © 1990, Taylor & Francis Group, LLC. All rights reserved.

引用

页码：1069 / 1086

页数：18

共 32 条

[1]

ALDRIDGE WN, 1944, ANALYST, V69, P262

[2]

ASMUS E, 1953, FRESENIUS Z ANAL CHE, V138, P417

[3] APPLICATIONS OF FLOW-INJECTION ANALYSIS IN A POWER-PLANT DETERMINATION OF PH, AMMONIA AND HYDRAZINE IN AN AVT-CONDITIONED WATER STEAM CYCLE [J].