In situ determination of the dissolved oxygen in water

被引：0

作者：

Yang, R ^{[1
]}

Chen, HW ^{[1
]}

Zhang, HQ ^{[1
]}

Yu, AM ^{[1
]}

Jin, QH ^{[1
]}

机构：

[1] Jilin Univ, Coll Chem, Inst Analyt Sci, Chungchun R&D Ctr Analyt Instruments, Changchun 130023, Peoples R China

来源：

CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE | 2002年 / 23卷 / 08期

关键词：

dissolved oxygen; in situ determination; portable photometer;

D O I：

暂无

中图分类号：

O6 [化学];

学科分类号：

0703 ;

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 1.35x10(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-, Cu2+, Fe3+, V5+, 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.

引用

页码：1501 / 1503

页数：3

共 16 条

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