Quantification of Methylated Selenium, Sulfur, and Arsenic in the Environment
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{"title"=>"Quantification of methylated selenium, sulfur, and arsenic in the environment", "type"=>"journal", "authors"=>[{"first_name"=>"Bas", "last_name"=>"Vriens", "scopus_author_id"=>"56099823000"}, {"first_name"=>"Adrian A.", "last_name"=>"Ammann", "scopus_author_id"=>"7102641246"}, {"first_name"=>"Harald", "last_name"=>"Hagendorfer", "scopus_author_id"=>"15062789200"}, {"first_name"=>"Markus", "last_name"=>"Lenz", "scopus_author_id"=>"14031646900"}, {"first_name"=>"Michael", "last_name"=>"Berg", "scopus_author_id"=>"7202002847"}, {"first_name"=>"Lenny H E", "last_name"=>"Winkel", "scopus_author_id"=>"14629726400"}], "year"=>2014, "source"=>"PLoS ONE", "identifiers"=>{"sgr"=>"84904604160", "doi"=>"10.1371/journal.pone.0102906", "pui"=>"373595109", "pmid"=>"25047128", "scopus"=>"2-s2.0-84904604160", "issn"=>"19326203", "isbn"=>"1932-6203"}, "id"=>"43eea83a-70fd-3e6e-97ab-9e2c1ba3ab75", "abstract"=>"Biomethylation and volatilization of trace elements may contribute to their redistribution in the environment. However, quantification of volatile, methylated species in the environment is complicated by a lack of straightforward and field-deployable air sampling methods that preserve element speciation. This paper presents a robust and versatile gas trapping method for the simultaneous preconcentration of volatile selenium (Se), sulfur (S), and arsenic (As) species. Using HPLC-HR-ICP-MS and ESI-MS/MS analyses, we demonstrate that volatile Se and S species efficiently transform into specific non-volatile compounds during trapping, which enables the deduction of the original gaseous speciation. With minor adaptations, the presented HPLC-HR-ICP-MS method also allows for the quantification of 13 non-volatile methylated species and oxyanions of Se, S, and As in natural waters. Application of these methods in a peatland indicated that, at the selected sites, fluxes varied between 190-210 ng Se·m-2·d-1, 90-270 ng As·m-2·d-1, and 4-14 µg S·m-2·d-1, and contained at least 70% methylated Se and S species. In the surface water, methylated species were particularly abundant for As (>50% of total As). Our results indicate that methylation plays a significant role in the biogeochemical cycles of these elements.", "link"=>"http://www.mendeley.com/research/quantification-methylated-selenium-sulfur-arsenic-environment", "reader_count"=>25, "reader_count_by_academic_status"=>{"Unspecified"=>3, "Researcher"=>7, "Student > Doctoral Student"=>1, "Student > Ph. D. Student"=>8, "Student > Master"=>4, "Student > Bachelor"=>1, "Professor"=>1}, "reader_count_by_user_role"=>{"Unspecified"=>3, "Researcher"=>7, "Student > Doctoral Student"=>1, "Student > Ph. D. Student"=>8, "Student > Master"=>4, "Student > Bachelor"=>1, "Professor"=>1}, "reader_count_by_subject_area"=>{"Unspecified"=>7, "Environmental Science"=>7, "Agricultural and Biological Sciences"=>2, "Pharmacology, Toxicology and Pharmaceutical Science"=>1, "Chemistry"=>3, "Earth and Planetary Sciences"=>5}, "reader_count_by_subdiscipline"=>{"Chemistry"=>{"Chemistry"=>3}, "Earth and Planetary Sciences"=>{"Earth and Planetary Sciences"=>5}, "Agricultural and Biological Sciences"=>{"Agricultural and Biological Sciences"=>2}, "Unspecified"=>{"Unspecified"=>7}, "Environmental Science"=>{"Environmental Science"=>7}, "Pharmacology, Toxicology and Pharmaceutical Science"=>{"Pharmacology, Toxicology and Pharmaceutical Science"=>1}}, "group_count"=>1}

Scopus | Further Information

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Figshare

  • {"files"=>["https://ndownloader.figshare.com/files/1603802"], "description"=>"<div><p>Biomethylation and volatilization of trace elements may contribute to their redistribution in the environment. However, quantification of volatile, methylated species in the environment is complicated by a lack of straightforward and field-deployable air sampling methods that preserve element speciation. This paper presents a robust and versatile gas trapping method for the simultaneous preconcentration of volatile selenium (Se), sulfur (S), and arsenic (As) species. Using HPLC-HR-ICP-MS and ESI-MS/MS analyses, we demonstrate that volatile Se and S species efficiently transform into specific non-volatile compounds during trapping, which enables the deduction of the original gaseous speciation. With minor adaptations, the presented HPLC-HR-ICP-MS method also allows for the quantification of 13 non-volatile methylated species and oxyanions of Se, S, and As in natural waters. Application of these methods in a peatland indicated that, at the selected sites, fluxes varied between 190–210 ng Se·m<sup>−2</sup>·d<sup>−1</sup>, 90–270 ng As·m<sup>−2</sup>·d<sup>−1</sup>, and 4–14 µg S·m<sup>−2</sup>·d<sup>−1</sup>, and contained at least 70% methylated Se and S species. In the surface water, methylated species were particularly abundant for As (>50% of total As). Our results indicate that methylation plays a significant role in the biogeochemical cycles of these elements.</p></div>", "links"=>[], "tags"=>["geochemistry", "Biogeochemistry", "marine and aquatic sciences", "Aquatic environments", "Freshwater environments", "bogs", "wetlands", "Environmental engineering", "bioremediation", "phytoremediation", "equipment", "Measurement equipment", "spectrometers", "Mass spectrometers", "chemistry", "Analytical chemistry", "mass spectrometry", "Electrospray ionization mass spectrometry", "Inductively coupled plasma mass spectrometry", "Liquid chromatography-mass spectrometry", "Tandem mass spectrometry", "trace elements", "Environmental chemistry", "Water chemistry", "methylated", "arsenic"], "article_id"=>1113357, "categories"=>["Biological Sciences"], "users"=>["Bas Vriens", "Adrian A. Ammann", "Harald Hagendorfer", "Markus Lenz", "Michael Berg", "Lenny H. E. Winkel"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0102906", "stats"=>{"downloads"=>21, "page_views"=>22, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Quantification_of_Methylated_Selenium_Sulfur_and_Arsenic_in_the_Environment_/1113357", "title"=>"Quantification of Methylated Selenium, Sulfur, and Arsenic in the Environment", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2014-07-21 15:19:29"}
  • {"files"=>["https://ndownloader.figshare.com/files/1603798"], "description"=>"<p>(A) Location of the studied minerotrophic peatland, Gola di Lago, in southern Switzerland, (B) Legend depicting the investigated species in both the trapping liquids and the surface waters (the fraction of other species was calculated as the total elemental concentration minus the elemental sum of the identified species), (C) Speciation of Se, As and S in the three trapping liquid samples (elemental basis), (D) Speciation of Se, As and S in the three surface water samples (elemental basis). Error bars indicate the standard deviation of triplicate analysis of the samples.</p>", "links"=>[], "tags"=>["geochemistry", "Biogeochemistry", "marine and aquatic sciences", "Aquatic environments", "Freshwater environments", "bogs", "wetlands", "Environmental engineering", "bioremediation", "phytoremediation", "equipment", "Measurement equipment", "spectrometers", "Mass spectrometers", "chemistry", "Analytical chemistry", "mass spectrometry", "Electrospray ionization mass spectrometry", "Inductively coupled plasma mass spectrometry", "Liquid chromatography-mass spectrometry", "Tandem mass spectrometry", "trace elements", "Environmental chemistry", "Water chemistry", "speciation"], "article_id"=>1113353, "categories"=>["Biological Sciences"], "users"=>["Bas Vriens", "Adrian A. Ammann", "Harald Hagendorfer", "Markus Lenz", "Michael Berg", "Lenny H. E. Winkel"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0102906.g004", "stats"=>{"downloads"=>4, "page_views"=>13, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Field_study_site_and_speciation_analysis_of_field_samples_/1113353", "title"=>"Field study site and speciation analysis of field samples.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2014-07-21 15:19:29"}
  • {"files"=>["https://ndownloader.figshare.com/files/1603797"], "description"=>"<p>Stacked chromatograms of solutions with non-volatile Se (top), S (middle), and As (bottom) standards (dashed lines), and chromatograms of diluted nitric acid trapping liquids (solid lines) produced in the gas trapping experiments with volatile organic Se, S and As compounds. The chromatograms are ten-point moving averages.</p>", "links"=>[], "tags"=>["geochemistry", "Biogeochemistry", "marine and aquatic sciences", "Aquatic environments", "Freshwater environments", "bogs", "wetlands", "Environmental engineering", "bioremediation", "phytoremediation", "equipment", "Measurement equipment", "spectrometers", "Mass spectrometers", "chemistry", "Analytical chemistry", "mass spectrometry", "Electrospray ionization mass spectrometry", "Inductively coupled plasma mass spectrometry", "Liquid chromatography-mass spectrometry", "Tandem mass spectrometry", "trace elements", "Environmental chemistry", "Water chemistry", "samples", "experiments", "methylated"], "article_id"=>1113352, "categories"=>["Biological Sciences"], "users"=>["Bas Vriens", "Adrian A. Ammann", "Harald Hagendorfer", "Markus Lenz", "Michael Berg", "Lenny H. E. Winkel"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0102906.g003", "stats"=>{"downloads"=>2, "page_views"=>17, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Analysis_of_trapping_liquid_samples_after_gas_trapping_experiments_with_volatile_methylated_Se_S_and_As_compounds_/1113352", "title"=>"Analysis of trapping liquid samples after gas trapping experiments with volatile, methylated Se, S and As compounds.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2014-07-21 15:19:29"}
  • {"files"=>["https://ndownloader.figshare.com/files/1603795"], "description"=>"<p>Error bars indicate the standard deviation of the measurements of triplicate samples.</p>", "links"=>[], "tags"=>["geochemistry", "Biogeochemistry", "marine and aquatic sciences", "Aquatic environments", "Freshwater environments", "bogs", "wetlands", "Environmental engineering", "bioremediation", "phytoremediation", "equipment", "Measurement equipment", "spectrometers", "Mass spectrometers", "chemistry", "Analytical chemistry", "mass spectrometry", "Electrospray ionization mass spectrometry", "Inductively coupled plasma mass spectrometry", "Liquid chromatography-mass spectrometry", "Tandem mass spectrometry", "trace elements", "Environmental chemistry", "Water chemistry", "chemotrapping", "nitric", "boiling", "points", "studied", "volatile"], "article_id"=>1113350, "categories"=>["Biological Sciences"], "users"=>["Bas Vriens", "Adrian A. Ammann", "Harald Hagendorfer", "Markus Lenz", "Michael Berg", "Lenny H. E. Winkel"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0102906.g002", "stats"=>{"downloads"=>0, "page_views"=>21, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Relationship_between_the_efficiency_of_chemotrapping_in_nitric_acid_and_boiling_points_of_the_studied_volatile_compounds_/1113350", "title"=>"Relationship between the efficiency of chemotrapping in nitric acid and boiling points of the studied volatile compounds.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2014-07-21 15:19:29"}
  • {"files"=>["https://ndownloader.figshare.com/files/1603800"], "description"=>"a<p>Boiling point at 1 atm <sup>b</sup>efficiency using a 30 mL·min<sup>−1</sup> N<sub>2</sub> gas flow, summed over three impingers, standard deviation from triplicate experiments.</p><p>Abbreviations: dimethyl selenide (DMSe), dimethyl diselenide (DMDSe), dimethyl sulfide (DMS), dimethyl disulfide (DMDS), monomethyl arsine (MMA), dimethyl arsine (DMA), trimethyl arsine (TMA), dimethyl selenoxide (DMSeO), methane seleninic acid (MSeA), dimethyl sulfoxide (DMSO), methane sulfonic acid (MSA), arsenate (As[V]), monomethyl arsonic acid (MMAA).</p>", "links"=>[], "tags"=>["geochemistry", "Biogeochemistry", "marine and aquatic sciences", "Aquatic environments", "Freshwater environments", "bogs", "wetlands", "Environmental engineering", "bioremediation", "phytoremediation", "equipment", "Measurement equipment", "spectrometers", "Mass spectrometers", "chemistry", "Analytical chemistry", "mass spectrometry", "Electrospray ionization mass spectrometry", "Inductively coupled plasma mass spectrometry", "Liquid chromatography-mass spectrometry", "Tandem mass spectrometry", "trace elements", "Environmental chemistry", "Water chemistry", "volatile", "boiling", "calculated", "observed", "reactions", "structures", "concentrated", "nitric"], "article_id"=>1113355, "categories"=>["Biological Sciences"], "users"=>["Bas Vriens", "Adrian A. Ammann", "Harald Hagendorfer", "Markus Lenz", "Michael Berg", "Lenny H. E. Winkel"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0102906.t001", "stats"=>{"downloads"=>2, "page_views"=>13, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Studied_volatile_species_including_their_structure_and_boiling_points_calculated_total_trapping_efficiencies_and_observed_reactions_products_and_structures_after_trapping_and_transformation_in_concentrated_nitric_acid_/1113355", "title"=>"Studied volatile species, including their structure and boiling points, calculated total trapping efficiencies, and observed reactions products and structures after trapping and transformation in concentrated nitric acid.", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2014-07-21 15:19:29"}
  • {"files"=>["https://ndownloader.figshare.com/files/1603799"], "description"=>"<p>(A) Stacked chromatogram of the gas trapping liquid sample 1 from Gola di Lago for Se (top), S (middle), and As (bottom) and (B) Stacked chromatogram of the surface water sample 1 from Gola di Lago for Se (top), S (middle), and As (bottom). Chromatograms for blanks are indicated by dashed lines. All chromatograms are five-point moving averages, and the identified compounds and their molar concentrations (on an elemental basis) are indicated at the corresponding peaks. Details of both methods are given in Table S3 in Supporting Information File S1.</p>", "links"=>[], "tags"=>["geochemistry", "Biogeochemistry", "marine and aquatic sciences", "Aquatic environments", "Freshwater environments", "bogs", "wetlands", "Environmental engineering", "bioremediation", "phytoremediation", "equipment", "Measurement equipment", "spectrometers", "Mass spectrometers", "chemistry", "Analytical chemistry", "mass spectrometry", "Electrospray ionization mass spectrometry", "Inductively coupled plasma mass spectrometry", "Liquid chromatography-mass spectrometry", "Tandem mass spectrometry", "trace elements", "Environmental chemistry", "Water chemistry", "liquid-", "samples", "gola", "di"], "article_id"=>1113354, "categories"=>["Biological Sciences"], "users"=>["Bas Vriens", "Adrian A. Ammann", "Harald Hagendorfer", "Markus Lenz", "Michael Berg", "Lenny H. E. Winkel"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0102906.g005", "stats"=>{"downloads"=>2, "page_views"=>14, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Chromatograms_of_trapping_liquid_and_surface_water_samples_collected_at_Gola_di_Lago_/1113354", "title"=>"Chromatograms of trapping liquid- and surface water samples collected at Gola di Lago.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2014-07-21 15:19:29"}
  • {"files"=>["https://ndownloader.figshare.com/files/1603794"], "description"=>"<p>(A) Schematic of the experimental set-up for the laboratory gas trapping experiments, with the separate in-situ production of volatile methylated As species in a gas-tight reaction vessel (left) and direct introduction of volatile methylated Se and S species (right), connected to (B), a set of glass impingers filled with concentrated nitric acid and <b>c</b>, schematic of the experimental set-up for the field gas trapping experiments, which consists of a flow-through box equipped with an air pump connected to the set of glass impingers (B). During field application, one impinger was connected to one flow-through box and the flow-through boxes were deployed in triplicate.</p>", "links"=>[], "tags"=>["geochemistry", "Biogeochemistry", "marine and aquatic sciences", "Aquatic environments", "Freshwater environments", "bogs", "wetlands", "Environmental engineering", "bioremediation", "phytoremediation", "equipment", "Measurement equipment", "spectrometers", "Mass spectrometers", "chemistry", "Analytical chemistry", "mass spectrometry", "Electrospray ionization mass spectrometry", "Inductively coupled plasma mass spectrometry", "Liquid chromatography-mass spectrometry", "Tandem mass spectrometry", "trace elements", "Environmental chemistry", "Water chemistry", "set-ups", "experiments"], "article_id"=>1113349, "categories"=>["Biological Sciences"], "users"=>["Bas Vriens", "Adrian A. Ammann", "Harald Hagendorfer", "Markus Lenz", "Michael Berg", "Lenny H. E. Winkel"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0102906.g001", "stats"=>{"downloads"=>6, "page_views"=>21, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Overview_of_the_experimental_set_ups_for_gas_trapping_experiments_in_the_laboratory_and_in_the_field_/1113349", "title"=>"Overview of the experimental set-ups for gas trapping experiments in the laboratory and in the field.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2014-07-21 15:19:29"}

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