Page 53 - ⑨环境与发展第6期

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环境监测
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荧光式和极谱式溶氧仪测量地表水中溶解氧含量的比较 ߌ࣢აؿᅚ࿐ඌ௹़

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吴宪宗 1,2,3 ，朱婷婷 1,2,3
（1.国家环境保护饮用水水源地管理技术重点实验室，广东 深圳 518001；2.深圳市饮用水水源地

安全保障重点实验室，广东 深圳 518001；3.深圳市环境科学研究院，广东 深圳 518001）

摘要：分别利用荧光式和极谱式溶氧仪测量地表水中的溶解氧含量，比较两种溶解氧电极响应

的线性、准确度、测量精密度和相对偏差，结果表明两种电极法测试溶解氧的数据无显著差异，
测量结果和碘量法数据一致，荧光式溶氧仪的测量结果能满足测试要求。
关键词：溶解氧；荧光式溶氧仪；极谱式溶氧仪

中图分类号：X830.2 文献标识码：A 文章编号：2095-672X(2022)06-0047-05
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DOI.10.16647/j.cnki.cn15-1369/X.2022.06.008

A comparative study on determination of dissolved oxygen in surface water by fluorescent
A comparative study on determination of dissolved oxygen in surface water by fluorescent
dissolved and polarographic oxygen analyzer
dissolved and polarographic oxygen analyzer
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1,2,3 1,2,3
Wu Xianzong , Zhu Tingting
(1. State Environmental Protection Key Laboratory of Drinking Water Source Management and Technology,
Shenzhen Guangdong 518001,China;2. Shenzhen Key Laboratory of Source Water Safety Insurance, Shen⁃
zhen Guangdong 518001,China;3. Shenzhen Research Academy of Environmental Sciences, Shenzhen
Guangdong 518001)

Abstract:The fluorescent dissolved oxygen analyzer and polarographic dissolved oxygen analyzer were used to
measure the dissolved oxygen content in the surface water. By comparing the linearity of two dissolved oxygen elec⁃
trodes, accuracy, RSD and relative deviation, it showed that there was no significant difference between two electrode
methods for measuring dissolved oxygen. The measurement data of two electrode method were consistent with the io⁃
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dimetry data. The measurement results of fluorescent dissolved oxygen analyzer are satisfied with the demands of qual⁃
ity control.
Key words:Dissolved oxygen; Fluorescent dissolved oxygen analyzer; Polarographic dissolved oxygen analyzer

水中溶解氧的含量是衡量水体自净能力 因素有关，大气压力降低，水温升高，含盐量升

的一个指标。它与大气压力、水温和含盐量等 高都会导致水中溶解氧含量降低。目前水样

HUANJINGYUFAZHAN 47

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