Chemiluminescence in gases: reactions yielding electronically excited sulfur dioxide

1968 ◽  
Vol 72 (11) ◽  
pp. 3711-3714 ◽  
Author(s):  
B. A. Thrush ◽  
Christopher J. Halstead ◽  
A. McKenzie
Keyword(s):  
Sulfur Dioxide ◽  
Electronically Excited

Chemiluminescence from Sulfur Compounds in Novel Flame and Discharge Systems: Proof of Sulfur Dioxide as the Emitter in the New Sulfur Chemiluminescence Detector

1992 ◽  
Vol 46 (6) ◽  
pp. 948-952 ◽  
Author(s):  
Harold R. Martin ◽  
Robert J. Glinski
Keyword(s):  
Sulfur Dioxide ◽  
Positive Curvature ◽  
Calibration Plot ◽  
Reduced Pressure ◽  
Sulfur Dioxide Concentration ◽  
Electronically Excited ◽  
Judicious Choice ◽  
Wavelength Discrimination ◽  
Chemiluminescence Detector ◽  
Sulfur Chemiluminescence Detector

Gases from a hydrogen-rich, sulfur-dioxide-containing, hydrogen/oxygen flame were drawn into a reduced-pressure reaction vessel and reacted with ozone. Spectroscopic analysis of the low-pressure chemiluminescence showed that electronically excited sulfur dioxide is the principal emitter exploited in the new sulfur chemiluminescence detector (SCD). Sulfur dioxide phosphorescence was found to contribute significantly to the total emission, suggesting that the technique could be enhanced by detecting more of the phosphorescence at higher total pressures. A calibration plot of signal vs. sulfur dioxide concentration was found to have a slight positive curvature. Interferences from NO2* and OH* were spectroscopically characterized; it is suggested that these could be minimized in the SCD by judicious choice of the wavelength discrimination filter. Utilization of a microwave discharge was similarly efficient at producing the chemiluminescence.

The Determination of Sulfur Dioxide-Correction

1917 ◽  
Vol 9 (12) ◽  
pp. 1148-1148
Author(s):  
James Withrow
Keyword(s):  
Sulfur Dioxide
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