Matís Staff

Ásta Heiðrún E. Pétursdóttir

Sviðsstjóri lýðheilsu og matvælaöryggis

Svið: Yfirstjórn

Sími: +354 4225028 /

Netfang: asta.h.petursdottir@matis.is

Sérþekking:

Snefilefni, Efnagreiningar, Áhættumat, Þörungar

Verkefni:
Ritrýndar greinar:
  • Macromineral and trace element concentrations and their seasonal variation in milk from organic and conventional dairy herds - (2021)
  • Validation and inter-laboratory study of selective hydride generation for fastscreening of inorganic arsenic in seafood - (2019)
  • Selective and fast screening method for inorganic arsenic in seaweed using hydride generation inductivelycoupled plasma mass spectrometry (HG-ICPMS) - (2019)
  • Arsenolipids are not uniformly distributed within two brown macroalgalspecies Saccharina latissima and Alaria esculenta - (2019)
  • Validation and inter-laboratory study of selective hydride generation for fast screening of inorganic arsenic in seafood - (2018)
  • Quantification of labile and stable non-polar arsenolipids in commercial fish meals and edible seaweed samples - (2018)
  • Introduction of regulations for arsenic in feed and food with emphasis on inorganic arsenic, and implications for analytical chemistry - (2015)
  • Environmental effects on arsenosugars and arsenolipids in Ectocarpus (Phaeophyta) - (2015)
  • Speciation without chromatography using selective hydride generation: inorganic arsenic in rice and samples of marine origin - (2014)
  • Hydride generation ICP-MS as a simple method for determination of inorganic arsenic in rice for routine biomonitoring - (2014)
  • Inorganic arsenic in seafood: Does the extraction method matter? - (2014)
  • HPLC-HG-ICP-MS: a sensitive and selective method for inorganic arsenic in seafood - (2012)
  • Determination of inorganic arsenic in seafood: Emphasizing the need for certified reference materials - (2012)
  • Identification and Quantification of Arsenolipids Using Reversed-Phase HPLC Coupled Simultaneously to High-Resolution ICPMS and High-Resolution Electrospray MS without Species-Specific Standards - (2011)
  • Effect of Dietary Seaweed Supplementation in Cows on Milk Macrominerals, Trace Elements and Heavy Metal Concentrations - (2021)
  • Ritaskrá / Publications

    Doktorsritgerð / Thesis

    Ásta Heiðrún E. Pétursdóttir, 2014, Inorganic and lipophilic arsenic in food commodities with an emphasis on seafood. PhD Thesis in Analytical Chemistry. University of Aberdeen, Aberdeen, UK.

    Ásta Heiðrún E. Pétursdóttir, 2010, Determination of toxic and non toxic arsenic species in Icelandic fish meal. Master’s Thesis in Analytical Chemistry. University of Iceland, Reykjavik, Iceland.

    Ritrýndar greinar / Publications in peer-reviewed journals

    2021:

    Newton, E.E., Pétursdóttir, Á.H., Ríkharðsson, G., Beaumal, C., Desnica, N., Giannakopoulou, K., Juniper, D., Ray, P., Stergiadis, S. Effect of Dietary Seaweed Supplementation in Cows on Milk Macrominerals, Trace Elements and Heavy Metal Concentrations. Foods 2021, 10, 1526.

    Pétursdóttir, Á.H., Qin, N., Faludi G., Beauclercq S., Desnica, N., Newton E.E., Angelidis, A., Givens, I. Juniper, D., Humphries, D., Gunnarsdóttir, H. Stergiadis, S. Macromineral and trace element concentrations and their seasonal variation in milk from organic and conventional dairy herds. Food Chemistry, Volume 359.

    2019:
    Pétursdóttir, Á.H., Blagden J., Gunnarsson, K., Raab, A., Stengel, D.B., Feldman, J., Gunnlaugsdóttir, H. 2019. Arsenolipids are not uniformly distributed within two brown macroalgalspecies Saccharina latissima and Alaria esculenta. Analytical and Bioanalytical Chemistry, 411, 4973–4985.

    2018:

    Marschner K, Pétursdóttir ÁH, Bücker P, Raab A, Feldmann J, Mester Z, Matoušek T, Musil S. 2018. Validation and inter-laboratory study of selective hydride generation for fast screening of inorganic arsenic in seafood. Analytica Chimica ActaGrein / Article

    Pétursdóttir ÁH, Gunnlaugsdóttir H. 2019. Selective and fast screening method for inorganic arsenic in seaweed using hydride generation inductively coupled plasma mass spectrometry (HG-ICPMS). Microchemical Journal, 144:45-50. Grein / Article

    Petursdottir AH, Rodrigues de Jesus J, Gunnlaugsdottir H, Feldmann J. 2018. Quantification of labile and stable non-polar arsenolipids in commercial fish meals and edible seaweed samples. Journal of Analytical Atomic Spectrometry 33, (1):102-110. Grein / Article

    2015:

    Pétursdóttir, A.H., Fletcher K.,  Gunnlaugsdóttir H., Krupp E., Küpper F.C. , Feldmann J. 2015. Environmental effects on arsenosugars and arsenolipids in Ectocarpus (Phaeophyta). Environ. Chem. Grein / Article

    Petursdottir A, Sloth J, Feldmann J. 2015. Introduction of regulations for arsenic in feed and food with emphasis on inorganic arsenic, and implications for analytical chemistry. Anal Bioanal Chem, 2015, 1-12. Grein / Article  

    2014:

    Petursdottir, A. H.; Friedrich, N.; Musil, S.; Raab, A.; Gunnlaugsdottir, H.; Krupp, E. M.; Feldmann, J., Hydride generation ICP-MS as a simple method for determination of inorganic arsenic in rice for routine biomonitoring. Analytical Methods, 2014, 6 (14), 5392 – 5396. Grein / Article

    Petursdottir, A., Gunnlaugsdottir, H., Krupp, E., & Feldmann, J. Inorganic arsenic in seafood: Does the extraction method matter? Food Chemistry, 2014, 150, 353-359. Grein / Article

    Musil, S.; Pétursdóttir, Á. H.; Raab, A.; Gunnlaugsdóttir, H.; Krupp, E.; Feldmann, J., Speciation without Chromatography Using Selective Hydride Generation: Inorganic Arsenic in Rice and Samples of Marine Origin. Analytical Chemistry 2014, 86, 993-999. Grein / Article

    2012:

    Pétursdóttir, Á., Gunnlaugsdóttir, H., Jörundsdóttir, H., Mestrot, A., Krupp, E., & Feldmann, J. HPLC-HG-ICP-MS: a sensitive and selective method for inorganic arsenic in seafood. Analytical and Bioanalytical Chemistry, 2012, 1-7. Grein / Article

    Petursdottir, A. H., Gunnlaugsdottir, H., Jorundsdottir, H., Raab, A., Krupp, E. M., & Feldmann, J. Determination of inorganic arsenic in seafood: Emphasizing the need for certified reference materials. Pure and Applied Chemistry, 2012, 84(2), 191-202. Grein / Article

    2011:

    Amayo, K.O., Petursdottir, A.  Gunnlaugsdottir, H., Newcombe, C., Raab, A., Krupp, E.M., Feldmann, J. Identification and quantification of arsenolipids using RP-HPLC coupled simultaneously to high resolution ICP-MS high resolution ES-MS without species-specific standards. Analytical Chemistry, 2011, 83, 3589-3595. Grein / Article

    SKÝRSLUR:

    2015:

    Rósa Jónsdóttir, Ásta Heiðrún Pétursdóttir, Halldór Benediktsson, Hilma B. Eiðsdóttir, Karl Gunnarsson, Jóna Freysdóttir. Áhrif vistfræði þangs og þara á lífvirk efni þeirra og nýtingu/ Ecological impact on bioactive chemicals in brown seaweeds and their utilization. Skýrsla Matís 08-15. Lokuð skýrsla. Skýrsluágrip.

    A. Petursdottir, S. Musil, N. Friedrich, A. Raab, E. Krupp, J. Feldmann. High throughput determination of inorganic arsenic in rice using hydride generation-ICP-MS. Application note, Agilent Technologies, July. 2015 Skýrsla

    2010:

    Ásta Heiðrún E. Pétursdóttir, Hrönn Ólína Jörundsdóttir, Helga Gunnlaugsdóttir. Food safety and added value of Icelandic fishmeal – Determination of toxic and non-toxic arsenic species in fish meal / Verðmæti og öryggi íslensks fiskimjöls – Greining eitraðra og hættulausra efnaforma arsens í fiskimjöli. Skýrsla Matís 45-10.