Doris Kuehnelt

Summary

Affiliation: University of Graz
Country: Austria

Publications

  1. ncbi request reprint Nitrogen purity influences the occurrence of As+ ions in high-performance liquid chromatography/electrospray ionization mass spectrometric analysis of four common arsenosugars
    Doris Kuehnelt
    Institute of Chemistry, Analytical Chemistry, Karl Franzens University, Universitaetsplatz 1, 8010 Graz, Austria
    Rapid Commun Mass Spectrom 17:654-9. 2003
  2. ncbi request reprint Marked individual variability in the levels of trimethylselenonium ion in human urine determined by HPLC/ICPMS and HPLC/vapor generation/ICPMS
    Doris Kuehnelt
    Division of Analytical Chemistry, Institute of Chemistry, Karl Franzens University Graz, Universitatsplatz 1, 8010, Graz, Austria
    Anal Bioanal Chem 386:2207-12. 2006
  3. ncbi request reprint Biological availability of selenosugars in rats
    Dijana Juresa
    Institute of Chemistry Analytical Chemistry, Karl Franzens University Graz, Universitaetsplatz 1, A 8010 Graz, Austria
    Chem Biol Interact 168:203-10. 2007
  4. ncbi request reprint Consequences of vapor enhancement on selenium speciation analysis by HPLC/ICPMS
    Dijana Juresa
    Institute of Chemistry Analytical Chemistry, Karl Franzens University Graz, Universitaetsplatz 1, 8010 Graz, Austria
    Anal Chem 78:8569-74. 2006
  5. ncbi request reprint Selenium metabolites in urine of cancer patients receiving L-selenomethionine at high doses
    Doris Kuehnelt
    Institute of Chemistry Analytical Chemistry, Karl Franzens University Graz, Universitaetsplatz 1, 8010 Graz, Austria
    Toxicol Appl Pharmacol 220:211-5. 2007
  6. ncbi request reprint Selenium metabolites in human urine after ingestion of selenite, L-selenomethionine, or DL-selenomethionine: a quantitative case study by HPLC/ICPMS
    Doris Kuehnelt
    Institute of Chemistry Analytical Chemistry, Karl Franzens University Graz, Universitaetsplatz 1, 8010, Graz, Austria
    Anal Bioanal Chem 383:235-46. 2005
  7. doi request reprint Quantitative determination of small selenium species in human serum by HPLC/ICPMS following a protein-removal, pre-concentration procedure
    Sabine Kokarnig
    Institute of Chemistry Analytical Chemistry, Karl Franzens University, Graz, Austria
    Anal Bioanal Chem 400:2323-7. 2011
  8. ncbi request reprint Determination of arsenic species: a critical review of methods and applications, 2000-2003
    Kevin A Francesconi
    Institute of Chemistry Analytical Chemistry, Karl Franzens University, Universitaetsplatz 1, 8010 Graz, Austria
    Analyst 129:373-95. 2004
  9. ncbi request reprint Thio arsenosugars in freshwater mussels from the Danube in Hungary
    Csilla Soeroes
    Department of Applied Chemistry, Faculty of Food Science, Corvinus University, Villányi út 29 33, 1118 Budapest, Hungary
    J Environ Monit 7:688-92. 2005
  10. ncbi request reprint Bacterial degradation of arsenobetaine via dimethylarsinoylacetate
    Richard O Jenkins
    School of Molecular Science, De Montfort University, The Gateway, LE1 9BH, Leicester, UK
    Arch Microbiol 180:142-50. 2003

Collaborators

Detail Information

Publications11

  1. ncbi request reprint Nitrogen purity influences the occurrence of As+ ions in high-performance liquid chromatography/electrospray ionization mass spectrometric analysis of four common arsenosugars
    Doris Kuehnelt
    Institute of Chemistry, Analytical Chemistry, Karl Franzens University, Universitaetsplatz 1, 8010 Graz, Austria
    Rapid Commun Mass Spectrom 17:654-9. 2003
    ..Molecular and elemental information from one chromatographic run is a valuable tool for the characterization of unknown arsenic compounds...
  2. ncbi request reprint Marked individual variability in the levels of trimethylselenonium ion in human urine determined by HPLC/ICPMS and HPLC/vapor generation/ICPMS
    Doris Kuehnelt
    Division of Analytical Chemistry, Institute of Chemistry, Karl Franzens University Graz, Universitatsplatz 1, 8010, Graz, Austria
    Anal Bioanal Chem 386:2207-12. 2006
    ..This marked individual variability in the formation of TMSe was maintained in a duplicate investigation of urine from the same seven volunteers...
  3. ncbi request reprint Biological availability of selenosugars in rats
    Dijana Juresa
    Institute of Chemistry Analytical Chemistry, Karl Franzens University Graz, Universitaetsplatz 1, A 8010 Graz, Austria
    Chem Biol Interact 168:203-10. 2007
    ....
  4. ncbi request reprint Consequences of vapor enhancement on selenium speciation analysis by HPLC/ICPMS
    Dijana Juresa
    Institute of Chemistry Analytical Chemistry, Karl Franzens University Graz, Universitaetsplatz 1, 8010 Graz, Austria
    Anal Chem 78:8569-74. 2006
    ..In addition, it raises broader issues of the validity of the "dilute and shoot" approach to the determination of metals in clinical analysis of biological fluids...
  5. ncbi request reprint Selenium metabolites in urine of cancer patients receiving L-selenomethionine at high doses
    Doris Kuehnelt
    Institute of Chemistry Analytical Chemistry, Karl Franzens University Graz, Universitaetsplatz 1, 8010 Graz, Austria
    Toxicol Appl Pharmacol 220:211-5. 2007
    ..These data refute the currently accepted role of TMSe as the preferred excretion metabolite when selenium exposure is high...
  6. ncbi request reprint Selenium metabolites in human urine after ingestion of selenite, L-selenomethionine, or DL-selenomethionine: a quantitative case study by HPLC/ICPMS
    Doris Kuehnelt
    Institute of Chemistry Analytical Chemistry, Karl Franzens University Graz, Universitaetsplatz 1, 8010, Graz, Austria
    Anal Bioanal Chem 383:235-46. 2005
    ....
  7. doi request reprint Quantitative determination of small selenium species in human serum by HPLC/ICPMS following a protein-removal, pre-concentration procedure
    Sabine Kokarnig
    Institute of Chemistry Analytical Chemistry, Karl Franzens University, Graz, Austria
    Anal Bioanal Chem 400:2323-7. 2011
    ..HPLC/ICPMS analysis showed, besides ingested selenate, the presence of selenosugar 1 and trace amounts of MeSeCys and methyl 2-amino-2-deoxy-1-seleno-β-D-galactopyranoside, which have not been reported in human serum before...
  8. ncbi request reprint Determination of arsenic species: a critical review of methods and applications, 2000-2003
    Kevin A Francesconi
    Institute of Chemistry Analytical Chemistry, Karl Franzens University, Universitaetsplatz 1, 8010 Graz, Austria
    Analyst 129:373-95. 2004
    ..We review recent research in the field of arsenic speciation analysis with the emphasis on significant advances, novel applications and current uncertainties...
  9. ncbi request reprint Thio arsenosugars in freshwater mussels from the Danube in Hungary
    Csilla Soeroes
    Department of Applied Chemistry, Faculty of Food Science, Corvinus University, Villányi út 29 33, 1118 Budapest, Hungary
    J Environ Monit 7:688-92. 2005
    ..This is the first report of thio arsenosugars in freshwater biota and suggests that these compounds may be common and widespread naturally-occurring arsenicals...
  10. ncbi request reprint Bacterial degradation of arsenobetaine via dimethylarsinoylacetate
    Richard O Jenkins
    School of Molecular Science, De Montfort University, The Gateway, LE1 9BH, Leicester, UK
    Arch Microbiol 180:142-50. 2003
    ..The work establishes the capability of particular bacteria to cleave both types of arsenic-carbon bonds of arsenobetaine and demonstrates that mixed-community functioning is not an obligate requirement for arsenobetaine biodegradation...
  11. ncbi request reprint Arsenic speciation in farmed Hungarian freshwater fish
    Csilla Soeroes
    Department of Applied Chemistry, Faculty of Food Science, Bkáe University, Villányi út 29 33, 1118 Budapest, Hungary
    J Agric Food Chem 53:9238-43. 2005
    ..The contrast between these two freshwater aquaculture species regarding total arsenic and arsenic species has relevant toxicological aspects in terms of food safety...