Zeeman atomic absorption spectrometer RA-915+ for direct determination of mercury in air and complex matrix samples

Sholupov, S. E.; Pogarev, S. E.; Ryzhov, Vladimir; Mashyanov, Nikolay; Stroganov, A. A.

doi:10.1016/j.fuproc.2003.11.003

Cited by 218 publications

(115 citation statements)

References 13 publications

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“…During the spring cruise, the GEM concentrations in air were determined using a Lumex RA-915+ Hg analyzer (Lumex, Inc., St. Petersburg, Russia), which is based on the differential Zeeman Atomic Absorption Spectrometry (ZAAS) with high-frequency modulation of light polarization and a multi-path analytical cell (Sholupov et al, 2004;Kim et al, 2006). The principle and set-up of the analyzer was given before in detail (Ci et al, 2011b,d).…”

Section: Measurements Of Gem In Airmentioning

confidence: 99%

Elemental mercury (Hg(0)) in air and surface waters of the Yellow Sea during late spring and late fall 2012: Concentration, spatial-temporal distribution and air/sea flux

Wang

et al. 2015

Chemosphere

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Section: Measurements Of Gem In Airmentioning

confidence: 99%

Elemental mercury (Hg(0)) in air and surface waters of the Yellow Sea during late spring and late fall 2012: Concentration, spatial-temporal distribution and air/sea flux

Wang

et al. 2015

Chemosphere

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“…The concentration of Hg was attained by a RA-915+ Zeeman Effect atomic absorption spectrometer, which is designed for the direct determination (without the preconcentration in the absorption trap) of mercury concentrations in soil gas (Sholupov et al 2004). The analyzing data was gained in the gas measuring mode of the instrument.…”

Section: Instruments and Measuring Processmentioning

confidence: 99%

Spatial Variations of Soil Gas Geochemistry in the Tangshan Area of Northern China

Liu¹,

Du²,

Wang³

et al. 2013

Terr. Atmos. Ocean. Sci.

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The concentrations of Hg, Rn, H 2 , He and CO 2 in soil gases at 756 sites were measured in the Tangshan area where M s 7.8 earthquake occurred in 1976 and is characterized by complex tectonic structures and high seismic hazard. The results showed that, spatial variations of the gaseous anomalies, especially hydrogen and helium have spatial congruence along the tectonic lines, which can be attributed to their deep sources and the migration paths formed by the faults. A better congruence of radon and carbon dioxide is highlighted which indicates that carbon dioxide acts as the carrier gas for radon in this area. Two geochemical anomaly zones of soil gas were found in the area wherein all the studied gases exhibited anomalies or high values, related to the faults and earthquakes.

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“…The Lumex instrument is portable atomic absorption spectrometer operating on the Zeeman principle to monitor Hg 0 in air, with a detection limit of 0.3 ng m −3 at a sampling flow rate of 18 l min −1 (Sholupov et al, 2004;Rodriguez et al, 2007). The instrument was installed in a car and air was brought to RA-915 + through a reinforced tube with inlet positioned well outside the vehicle perimeter.…”

Section: Sampling Proceduresmentioning

confidence: 99%

Spatial distribution of mercury deposition fluxes in Wanshan Hg mining area, Guizhou province, China

et al. 2012

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Abstract. The legacy of long-term mining activities in Wanshan mercury (Hg) mining area (WMMA), Guizhou, China including a series of environmental issues related to Hg pollution. The spatial distribution of gaseous elemental mercury (Hg 0 ) concentrations in ambient air were monitored using a mobile RA-915 + Zeeman Mercury Analyzer during daytime and night time in May 2010. The data imply that calcines and mine wastes piles located at Dashuixi and on-going artisanal Hg mining activities at Supeng were major sources of atmospheric mercury in WMMA. For a full year (May 2010 to May 2011), sampling of precipitation and throughfall were conducted on a weekly basis at three sites (Shenchong, Dashuixi, and Supeng) within WMMA. Hg in deposition was characterized by analysis of total Hg (THg) and dissolved Hg (DHg) concentrations. The corresponding data exhibit a high degree of variability, both temporarily and spatially. The volume-weighted mean THg concentrations in precipitation and throughfall samples were 502.6 ng l −1 and 977.8 ng l −1 at Shenchong, 814.1 ng l −1 and 3392.1 ng l −1 at Dashuixi, 7490.1 ng l −1 and 9641.5 ng l −1 at Supeng, respectively. THg was enhanced in throughfall compared to wet deposition samples by up to a factor of 7. The annual wet Hg deposition fluxes were 29.1, 68.8 and 593.1 µg m −2 yr −1 at Shenchong, Dashuixi and Supeng, respectively, while the annual dry Hg deposition fluxes were estimated to be 378.9, 2613.6 and 6178 µg m −2 yr −1 at these sites, respectively. Dry deposition played a dominant role in total atmospheric Hg deposition in WMMA since the dry deposition fluxes were 10.4-37.9 times higher than the wet deposition fluxes during the whole sample period. Our data showed that air deposition was still an important pathway of Hg contamination to the local environment in WMMA.

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Zeeman atomic absorption spectrometer RA-915+ for direct determination of mercury in air and complex matrix samples

Cited by 218 publications

References 13 publications

Elemental mercury (Hg(0)) in air and surface waters of the Yellow Sea during late spring and late fall 2012: Concentration, spatial-temporal distribution and air/sea flux

Elemental mercury (Hg(0)) in air and surface waters of the Yellow Sea during late spring and late fall 2012: Concentration, spatial-temporal distribution and air/sea flux

Spatial Variations of Soil Gas Geochemistry in the Tangshan Area of Northern China

Spatial distribution of mercury deposition fluxes in Wanshan Hg mining area, Guizhou province, China

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