高等学校化学学报

高等学校化学学报 ›› 2002, Vol. 23 ›› Issue (8): 1501.

• 研究简报 • 上一篇    下一篇

溶解氧的快速现场测定

杨蕊, 陈焕文, 张寒琦, 于爱民, 金钦汉   

  1. 长春分析仪器研究和技术开发中心, 吉林大学化学学院分析科学研究所, 长春 130023
  • 收稿日期:2001-05-21 出版日期:2002-08-24 发布日期:2002-08-24
  • 作者简介:金钦汉(1937年出生),男,教授,博士生导师,从事光谱分析研究.
  • 基金资助:

    吉林省科技发展项目(批准号:931008)资助

In situ Determination of the Dissolved Oxygen in Water

YANG Rui, CHEN Huan-Wen, ZHANG Han-Qi, YU Ai-Min, JIN Qin-Han   

  1. Changchun R &D Center for Analytical Instuments, Institute of Analytical Science, College of Chemistry, Jinlin University, Changchun 130023, China
  • Received:2001-05-21 Online:2002-08-24 Published:2002-08-24

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被引次数

20

关键词: 溶解氧, 现场测定, 手持式光度计

Abstract: 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 1.35×104, and its dynamic linear range is 0-27 mg/Llinearity coefficient of 0.997. The most oxidizing species, such as Cl2, ClO-, Cu2+, Fe3+, V5+, and As(Ⅴ), do not interfere the determination. It takes no more than 1 m in to analyze one sample. The method was applied to determining some practical samples and all the results obtained were satisfactory.

Key words: Dissolved oxygen, In situ determination, Portable photometer

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