Quenching effects in SO2 fluorescence monitoring instruments

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作者：
Jahnke, J.A. [1 ]
Cheney, J.L. [1 ]
Homolya, J.B. [1 ]
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[1] Stationary Source Emissions Res. Branch, Emissions Measurement Characterizat. Div., Environm. Sci. Res. Lab., Environm. Protect. Agency, Environm. Res. Cent., Research Triangle Park, N.C. 27711, United States
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| 1600年 / 10期
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摘要：
An evaluation of the technique of determining SO//2 concentrations by measuring the SO//2 fluorescence excited at the 2100 A region of the SO//2 UV spectrum was performed. The quenching effects resulting from O//2 concentrations below and CO//2 concentrations above ambient levels gave SO//2 concentration measurements on the order of 5-10% higher than the reference values. Spanning the instrument with an SO//2 in nitrogen span gas resulted in giving readings 30% lower than true values.
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