Abstract:A transparent quartz rod (q) placed vertically on top of a non-premixed hydrogen microjet flame in a flame photometric detector (qFPD) was developed and evaluated for sulfur detection. The microjet flame burned around the quartz rod because of Coanda effect, forming an extended downstream flame zone with a relatively low temperature between 550 and 650 °C, which is favorable to the formation of S 2 *. The emission intensity of S 2 * and the signal-to-noise ratio (SNR) of sulfur response were enhanced 2.6-and 2… Show more
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