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Position: Home > Articles > Study on the Portable Ultraviolet Fluorescence Analyzer for Determining SO_2 Concentration in the Ambient Air Journal of Anhui Agricultural Sciences 2016,44 (18) 37-39

紫外荧光法测定环境空气中的SO_2

作  者:
冯永超;胡勇;龚玲;彭逸;王海波
单  位:
重庆市环境监测中心
关键词:
环境空气;SO2;紫外荧光法;甲醛法;比对试验
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。
译  名:
Study on the Portable Ultraviolet Fluorescence Analyzer for Determining SO_2 Concentration in the Ambient Air
作  者:
FENG Yong-chao;HU Yong;GONG Ling;Chongqing Environment Monitoring Center;
关键词:
Ambient air;;SO2;;Ultraviolet fluorescence method;;Formaldehyde absorbing;;Comparison experiment
摘  要:
[Objective] The aim was to determine SO_2 concentration in the ambient air by using portable ultraviolet fluorescence analyzer.[Method] 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 SO_2 is less than 5 μL / m2,while the deviation of two methods was less than 10% when the concentration of SO_2 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 SO_2 concentration in the ambient air.

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