| 紫外荧光法测定环境空气中的SO2 |
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| 引用本文： | 冯永超,胡勇,龚玲,彭逸,王海波.紫外荧光法测定环境空气中的SO2[J].安徽农业科学,2016,44(18):37-39. |
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| 作者姓名： | 冯永超 胡勇 龚玲 彭逸 王海波 |
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| 作者单位： | 重庆市环境监测中心,重庆,401147;重庆市环境监测中心,重庆,401147;重庆市环境监测中心,重庆,401147;重庆市环境监测中心,重庆,401147;重庆市环境监测中心,重庆,401147 |
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| 基金项目： | 重庆市环保局环保科技项目(环科字2015第14号)。 |
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| 摘 要： | 目的]采用便携式紫外荧光仪测定环境空气中SO_2浓度。方法]将紫外荧光法应用于室外监测,研究其性能,并与甲醛法用标准气体样品和环境空气监测数据进行比较。结果]当环境空气SO_2浓度小于5μL/m3时,2种方法应采用绝对误差来评价;当环境空气SO_2浓度大于5μL/m3时,2种方法有很好的相关性,其相对误差小于10%。结论]紫外荧光法具有检测灵敏度高、实时性强、检测范围宽和重复性好等优点,可用于测定环境空气中SO_2浓度。
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| 关 键 词： | 环境空气 SO2 紫外荧光法 甲醛法 比对试验 |
Study on the Portable Ultraviolet Fluorescence Analyzer for Determining SO2 Concentration in the Ambient Air |
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| Abstract: | Objective] The aim was to determine SO2 concentration in the ambient air by using portable ultraviolet fluorescence analyzer.Meth-od] The monitoring value from the ultraviolet fluorescence and formaldehyde absorbing methods by standard gas samplings and ambient air was discussed through comparison experiment.Result] The results showed that the two methods have obvious deviation except through the absolute error evaluation when the concentration of SO2 is less than 5μL/m2 ,while the deviation of two methods was less than 10%when the concentration of SO2 is more than 5 μL/m2.Conclusion] Ultraviolet fluorescence method has advantages of high sensitivity,real-time,wide detection range and good repeatability,which can be used for determining SO2 concentration in the ambient air. |
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| Keywords: | Ambient air SO2 Ultraviolet fluorescence method Formaldehyde absorbing Comparison experiment |
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