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| Determination of Dissolved Oxygen by Electrochemical Probe Method and Fluorescence Method |
| Received:September 07, 2014 Revised:December 11, 2014 |
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| DOI：doi:10.3969/j.issn.2095-1035.2015.01.008 |
| KeyWord:electrochemical probe method; fluorescence method; dissolved oxygen; significant difference; F-test; t-test |
| Author | Institution |
| ZHANG Tao |
中国地质调查局 水文地质环境地质调查中心，河北 保定 |
| LIU Jinwei |
中国地质调查局 水文地质环境地质调查中心，河北 保定 |
| CAI Wutian |
中国地质调查局 水文地质环境地质调查中心，河北 保定 |
| CAO Yueting |
中国地质调查局 水文地质环境地质调查中心，河北 保定 |
| ZHAO Miao |
中国地质调查局 水文地质环境地质调查中心，河北 保定 |
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| Abstract: |
| The relationship between the electrochemical probe method and the fluorescence method for the determination of dissolved oxygen in water was discussed. F-test and t-test were applied to compare the precision and systematic errors of the two methods by two groups of experimental data. The results showed that they were not significant differences. The relative standard deviations (RSDs, n=9) of the two methods were 0.35% and 0.33%, respectively. The relationship between dissolved oxygen and temperature, NaCl content were also discussed It is clear that the dissolved oxygen content increase with the increase of the content of NaCl and with the decrease of temperature . |
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