Analysis of water-soluble fraction of metals in atmospheric aerosols using aerosol counterflow two-jets unit and chemiluminescent detection

Vojtěšek, Martin; Mikuška, Pavel; Večeřa, Zbyněk; Křůmal, Kamil

doi:10.1080/03067319.2011.592946

Cited by 5 publications

(3 citation statements)

References 57 publications

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“…Nevertheless, it is often necessary to quantify specific metallic forms, species, since bioavailability, solubility, geochemical transport, and metal cycles largely depend on physical-chemical speciation [ 9 ]. Consequently, toxicity of transition metals associated with atmospheric PM depends on solubility [ 10 ], speciation, and kinetics of metal release from the solid phase. The use of water as a leaching agent was recommended [ 9 ] because these conditions are more similar to environmental conditions of extraction by rain water or to conditions in the lung environment, when PM is inhaled.…”

Section: Introductionmentioning

confidence: 99%

“…Another group of methods for determination of the water-soluble fraction of metals in atmospheric aerosols can be based on the continuous sampling of atmospheric aerosols into deionized water [ 10 , 19 ]. By using the aerosol growth technology, saturated water vapor condenses on the PM forming droplets, which can be collected in various impactors.…”

Section: Introductionmentioning

confidence: 99%

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Characterization of Urban Particulate Matter by Diffusive Gradients in Thin Film Technique

Dufka

Dočekal

2018

Journal of Analytical Methods in Chemistry

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A diffusive gradient in thin films (DGT) technique was employed in characterization of the particulate matter related to the urban area suffering from heavy traffic. Kinetics of mobilization metals fluxes from the metal-contaminated particulate matter was investigated. To monitor responses of the particulate matter sample, DGT probes of various thickness of diffusion layer were deployed in aqueous model suspensions of the particulate matter for different time periods. Particulate matter samples and exposed DGT resin gels were decomposed in a mixture of nitric and hydrochloric acid in a microwave pressurized PTFE-lined system. Total content of some traffic-related elements (Cd, Co, Cu, Mo, Ni, Pb, Pd, Pt, Rh, Sb, and V) was determined by inductively coupled plasma mass spectrometry. DGT measurements revealed that two metals pools associated with particles could be recognized, which can be characterized as high soluble fraction and almost insoluble fraction. DGT-measured metal fluxes from the labile pool showed significant difference in mobilization and resupply fluxes of individual selected elements, which might reflect the origin of selected metals and their speciation in particulate matter. The DGT technique can be applied as a useful tool for characterization of metals mobilization from the particulate matter.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Characterization of Urban Particulate Matter by Diffusive Gradients in Thin Film Technique

Dufka

Dočekal

2018

Journal of Analytical Methods in Chemistry

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“…It is evident that the effect of metal cations is more important than the effect of anions, but the total concentrations of individual metals in aerosols 51 are mostly low in comparison with the corresponding concentration of NH 4 + . In addition, the concentration of the respective metal cations in atmospheric aerosols is even by an order lower in comparison with the total concentration of metals, 52,53 so the effect of the studied metal cations, copresent with NH 4 + in PM, on the determination of particulate NH 4…”

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confidence: 96%

Simultaneous Determination of Gaseous Ammonia and Particulate Ammonium in Ambient Air Using a Cylindrical Wet Effluent Diffusion Denuder and a Continuous Aerosol Sampler

Alexa

Mikuška

2020

Anal. Chem.

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A sensitive and fast method for simultaneous determination of gaseous ammonia (NH 3 ) and particulate ammonium (NH 4 + ) in ambient air is presented. NH 3 is sampled in a cylindrical wet effluent diffusion denuder (CWEDD) and analyzed online by a continuous flow system with a fluorescence detector (FLD), while NH 4 + bound to aerosol particles is sampled in parallel by a condensation growth unitthe aerosol counterflow two-jet unit (CGU-ACTJU) samplerand analyzed online with another FLD. The sensitive fluorescence detection of ammonium in concentrates of the CWEDD and the ACTJU is based on its reaction with ortho-phthaldialdehyde and sulfite to form isoindol-1-sulfonate. The calibration curve of ammonium is linear in the concentration range of 5 × 10 −9 to 2 × 10 −6 M. The limit of detection (LOD = 3 s/n) values of NH 3 and NH 4 + are 3.52 ng m −3 (5.05 ppt) and 1.04 ng m −3 , respectively. The developed method enables online measuring of distribution of NH 3 /NH 4 + in ambient air with a time resolution of 1 s. The optimized method was used for the determination of NH 3 /NH 4 + in urban air in Brno in two campaigns during the winter and summer of 2018. The results obtained by the developed method were compared with a reference method based on the sampling on filters and "dry" diffusion denuders coated by phosphoric acid.

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Determination of water soluble trace metals in airborne particulate matter using a dynamic extraction procedure with on-line inductively coupled plasma optical emission spectrometric detection

Limbeck

Wagner

Lendl

et al. 2012

Analytica Chimica Acta

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Analysis of water-soluble fraction of metals in atmospheric aerosols using aerosol counterflow two-jets unit and chemiluminescent detection

Cited by 5 publications

References 57 publications

Characterization of Urban Particulate Matter by Diffusive Gradients in Thin Film Technique

Characterization of Urban Particulate Matter by Diffusive Gradients in Thin Film Technique

Simultaneous Determination of Gaseous Ammonia and Particulate Ammonium in Ambient Air Using a Cylindrical Wet Effluent Diffusion Denuder and a Continuous Aerosol Sampler

Determination of water soluble trace metals in airborne particulate matter using a dynamic extraction procedure with on-line inductively coupled plasma optical emission spectrometric detection

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