溶解氧的快速现场测定

作     者：杨蕊 陈焕文 张寒琦 于爱民 金钦汉 

作者机构：长春分析仪器研究和技术开发中心 

出 版 物：《高等学校化学学报》 (Chemical Journal of Chinese Universities)

年 卷 期：2002年第23卷第8期

页      面：1501-1503页

核心收录：

学科分类：082803[工学-农业生物环境与能源工程] 08[工学] 0828[工学-农业工程] 0804[工学-仪器科学与技术] 0703[理学-化学] 

基　　金：吉林省科技发展项目 (批准号 :93 10 0 8)资助 

主　　题：溶解氧 现场测定 手持式光度计 水体污染 环境监测 

摘      要：The indigo carmine was reduced by using cheap,easily attainable and non poisonous reagents. Therefore, a special reagent was developed to measure the concentration of dissolved oxygen in water in situ . The molar absorption coefficient of the method is 1 35×10 4, and its dynamic linear range is 0-27 mg/L linearity coefficient of 0 997. The most oxidizing species, such as Cl 2, ClO -, Cu 2+ , Fe 3+ , V 5+ , and As(Ⅴ), do not interfere the determination. It takes no more than 1 min to analyze one sample. The method was applied to determining some practical samples and all the results obtained were satisfactory.