Abstract
A mercury-vapor analyzer which is based on a method of atomic absorption spectroscopy is proposed to operate in the atmospheric air. The source of emission used in the instrument is a low-pressure capillary lamp filled with mercury of natural isotope composition. Features of its emission spectrum are described under the transverse Zeeman effect in the vicinity of a resonance wavelength of 253.7 nm. The emission intensities π and the sums of σ components of this lamp are studied. The results of experimental investigations of the analyzer operating modes are presented, and systematic measurement errors are estimated (±30 ng/m3). Some options of improving the analyzer response are demonstrated.
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