Experimental evaluation of the effect of benzene and toluene on measurement of mercury vapor concentration with an analyzer based on the transverse Zeeman effect
V.V. Tatur, A.A. Tikhomirov
Institute of Monitoring of Climatic and Ecological Systems of the Siberian Branch of the Russian Academy of Sciences, Tomsk, Russia
Keywords: mercury vapor analyzer, transverse Zeeman Effects, benzene, toluene
Abstract
The experimental setup and the technique are suggested for sequential feeding of controlled doses of Hg, benzene, and toluene vapors into the measuring cell of a DOG-07 analyzer with a mercury capillary lamp based on the transverse Zeeman effect as a radiation source. It is shown that when benzene or toluene vapors with concentrations of up to 10 mg/m3 are added to the measuring cell with mercury vapors in a concentration of more than 30 ng/m3, there is no error in the measured Hg concentration. With the introduction of a higher concentration of benzene vapors, an increase in the measured concentration of Hg is observed. The introduction of a higher concentration of toluene vapor into the measuring cell leads to a decrease in the measured concentration of Hg.
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