摘要
探讨了化学探头法和荧光光谱法测定水中溶解氧的关系。分别用F检验和t检验对两组数据进行了比较,结果表明两组数据的精密度和系统误差都没有显著差异,两种方法测定溶解氧的相对标准偏差(RSD,n=9)分别为0.35%,0.33%。进而又探讨了溶解氧与NaCl含量、温度之间的关系,结果表明溶解氧含量随NaCl含量的增加、温度的升高而逐渐降低。
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, NaCI content were also discussed. It is clear that the dissolved oxygen content decrease with the increase of the content of NaC1 and with the increase of temperature.
出处
《中国无机分析化学》
CAS
2015年第1期28-30,共3页
Chinese Journal of Inorganic Analytical Chemistry
基金
中国地质调查局项目
典型水土污染区水文地质调查评价(1212011220985)
青藏高原重点地区地下水水质调查评价(12120114059601)资助
关键词
化学探头法
荧光光谱法
溶解氧
显著性差异
F检验
T检验
electrochemical probe method
fluorescence method
dissolved oxygen
significant difference
F -test
t-test
