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» Authors » Helga Dogg Flosadottir

Helga Dogg Flosadottir

Explore the profile of Helga Dogg Flosadottir including associated specialties, affiliations and a list of published articles. Areas
Snapshot
Articles 7
Citations 30
Followers 0
Related Specialties
Chemistry
Biophysics
Top 10 Co-Authors
Oddur Ingolfsson
Paul Scheier
Stephan Denifl
Sylwia Ptasinska
Hannes Jonsson
Benedikt Omarsson
Ilko Bald
Nina Wendt
Tilmann D Mark
Arntraud Bacher
Published In
J Am Soc Mass Spectrom
Angew Chem Int Ed Engl
Phys Chem Chem Phys
Affiliations
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Recent Articles
1.
Preparation of Nafion Membranes for Reproducible Ammonia Quantification in Nitrogen Reduction Reaction Experiments
Hanifpour F, Sveinbjornsson A, Pia Canales C, Skulason E, Flosadottir H
Angew Chem Int Ed Engl . 2020 Aug; 59(51):22938-22942. PMID: 32857426
This study highlights the importance of following a strict protocol for Nafion membrane pretreatment for electrochemical nitrogen reduction reaction experiments. Atmospheric ammonia pollution can be introduced to the experimental setup...
2.
NCO(-), a key fragment upon dissociative electron attachment and electron transfer to pyrimidine bases: site selectivity for a slow decay process
Ferreira da Silva F, Matias C, Almeida D, Garcia G, Ingolfsson O, Flosadottir H, et al.
J Am Soc Mass Spectrom . 2013 Sep; 24(11):1787-97. PMID: 24043519
We report gas phase studies on NCO(-) fragment formation from the nucleobases thymine and uracil and their N-site methylated derivatives upon dissociative electron attachment (DEA) and through electron transfer in...
3.
Mass spectrometric study on sodium ion induced central nucleotide deletion in the gas phase
Flosadottir H, Gislason K, Sigurdsson S, Ingolfsson O
J Am Soc Mass Spectrom . 2012 Feb; 23(4):690-8. PMID: 22290483
We report a mass spectrometric study on sodium ion induced central nucleotide deletion from protonated oligonucleotides (ONTs) and the concurrent recombination of the terminal nucleotides. To shed some light on...
4.
Experimental and theoretical study of the metastable decay of negatively charged nucleosides in the gas phase
Flosadottir H, Jonsson H, Sigurdsson S, Ingolfsson O
Phys Chem Chem Phys . 2011 Jul; 13(33):15283-90. PMID: 21769360
Fragmentation of metastable anions of all deoxynucleosides and nucleosides constituting DNA and RNA has been studied experimentally and by computer simulations. The ions were formed through deprotonation in matrix assisted...
5.
Reactions in gas phase and condensed phase C6F5X (X = NCO, CH2CN) triggered by low energy electrons
Dabkowska I, Flosadottir H, Orzol M, Ptasinska S, Bald I, Ingolfsson O, et al.
Phys Chem Chem Phys . 2009 Jun; 11(26):5323-30. PMID: 19551199
Electron attachment to gas phase perfluorophenylisocyanate (C(6)F(5)NCO) and perfluorophenyloacetonitrile (C(6)F(5)CH(2)CN) generates metastable parent anions within a very narrow resonance close to zero energy. At higher energies (2-7 eV), dissociative electron...
6.
Sodium controlled selective reactivity of protonated deoxy-oligonucleotides in the gas phase
Flosadottir H, Stano M, Ingolfsson O
J Am Soc Mass Spectrom . 2009 Feb; 20(4):689-96. PMID: 19200751
Metastable fragmentation of the positively charged, hexameric oligonucleotides 5'-d(TTXYTT) (X and Y are dC, dG, or dA) and 5'-d(CTCGTT), 5'-d(TTCGTC) and 5'-d(CTCGTC) is studied after matrix assisted laser desorption/ionization (MALDI)....
7.
Combined experimental and theoretical study on the nature and the metastable decay pathways of the amino acid ion fragment [M-H]-
Flosadottir H, Denifl S, Zappa F, Wendt N, Mauracher A, Bacher A, et al.
Angew Chem Int Ed Engl . 2007 Sep; 46(42):8057-9. PMID: 17854111
No abstract available.