Cavity Ringdown Spectroscopy Mercury Continuous Emission Monitor. Quarterly Technical Progress Report. For the Period Starting July 1, 2002 Ending September 30, 2002.

Technical Information Center Oak Ridge Tennessee

关键词: Remediation;    Toxic substances;    Fluid mechanics;    Metals;    Measuring instruments;   

RP-ID  :  DE2003804179

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

Work on the Cavity Ring-Down (CRD) mercury spectrometer this past quarter concentrated on the actual detection of mercury and the beginning of flue gas inteferent testing. After obtaining the initial mercury signal detection was done at various pressures and concentrations. The Alexandrite laser system used for the CRD spectrometer has a narrow enough line width to spectrally resolve the isotopic structure of mercury. This includes both isotopic frequency shifts as well as hyperfine splittings due to a couple of the odd isotopes of mercury. Initial flue gas inteferent testing concentrated on SO2, which is expected to cause the greatest interference with mercury detection due to its absorption of ultra-violet light in the same region as that of the mercury atomic line.