Mass spectrometry (ESI, APCI, EI, CI, DART), GC-MS, HPLC-MS, MSMS (QqQ, QqTOF), method development GC-MS (QqQ and QqTOF), method development HPLC-MS (QqQ and QqTOF), organic chemistry, advanced organic chemistry, synthetic organic chemistry, retrosynthetic organic chemistry, carbohydrate chemistry, cyclopropane chemistry.

Selected publications (peer review) 

Ole Johan Juvik, Bjarte Holmelid, George W. Francis, Heidi Lie Andersen,Ana Paula de Oliveira, Raimundo Gonçalves de Oliveira Júnior,
Jackson Roberto Guedes da Silva Almeida and Torgils Fossen*

Non-Polar Natural Products from Bromelia laciniosa, Neoglaziovia variegata and Encholirium spectabile (Bromeliaceae)
Molecules 2017, 22, 1478; doi:10.3390/molecules22091478 www.mdpi

Ina Hvidsten^*, Svein Are Mjøs, Bjarte Holmelid, Gunhild Bødtker, Tanja Barth

Lipids of Dietzia sp. A14101. Part I: A study of the production dynamics of surface-active compounds
Chemistry and Physics of Lipids 208 (2017) 19–30

Bjarte Holmelid, Leiv, K., Sydnes^*

Synthesis of 1,1,2,2,7,7,8,8-Octaethoxyocta-3,5-diyne

Molbank, 1, (2015), M840; DOI: 10.3390/M840

Veronika Sele^*, Jens J. Sloth, Bjarte Holmelid, Stig Valdersnes, Kasper Skov and Heidi Amlund

Arsenic-containing fatty acids and hydrocarbons in marine oils - Determination using reversed-phase HPLC-ICP-MS and HPLC-qTOF-MS

Talanta, Volume 121, (2014), 89–96 DOI: 10.1016/j.talanta.2013.12.049

Rustem Isanov, Bjarte Holmelid,Karl W. Törnroos and Leiv K. Sydnes^*

Syntheses of (E)-1,1-diethoxy-3-(3-hydroxy-3-arylfuro[2,3-b]quinoxalin-2(3H)-ylidene)propan-2-ones via Acid-catalyzed, Stereoselective 5-Exo-Dig Cyclization

Journal of Heterocyclic Chemistry, 2014, DOI: 10.1002\jhet2127

Ole B. Samuelsen, Bjørn T. Lunestad, Ann-Lisbeth Agnalt, Tore Tjensvoll, Ellen S. Grefsrud, Eva Farestveit, Bjarte Holmelid.

Mortality and deformities in European lobster (Homarus gammarus) juveniles exposed to the anti-parasitic drug teflubenzuron.

Aquatic Toxicology, volume 149, (2014), 8–15 DOI: 10.1016/j.aquatox.2014.01.019

Bjarte Holmelid, Leiv K. Sydnes^*

Reaction of Epoxides with 3,3,4,4-Tetraethoxybut-1-yne Acetylide; Selective Formation of Propargylic and homopropargylic Alcohols       

Synthesis, 45, (2013), 2567-2570, DOI: 10.1055/s-0033-1339326

Pål A. Olsvik^*, Ole B. Samuelsen, Ane Erdal, Bjarte Holmelid, Bjørn T. Lunestad

Toxicological assessment of the anti-salmon lice drug diflubenzuron on Atlantic cod (Gadus morhua)

Diseases of Aquatic Organisms, 105, (2013), 27-43, DOI: 10.3354/dao02613

Bjarte Holmelid^*, Mike Kleinert, Tanja Barth

Mechanistic studies towards degradation of novel lignin model compounds

Journal of Analytical and Applied Pyrolysis, 98, (2012), 37–44.

Leiv K. Sydnes^*, Bjarte Holmelid, Myagmarsuren Sengee, Miriam Hanstein

New Regiospecific Synthesis of Tri- and Tetra-Substituted Furans        

Journal of Organic Chemistry, 74, (2009) 3430-3443.

Leiv K. Sydnes^*, Bjarte Holmelid, Ole H. Kvernenes, Stig Valdersnes, Mari Hodne, Kjartan Boman

Stereospecific synthesis of allylic and homoallylic alcohols from functionalized propargylic alcohols

ARKIVOC, xiv, (2008), 242-268.

Bjarte Holmelid, Ole H. Kvernenes, Hodne, Mari, Leiv K. Sydnes^*

Ring Opening of Some 1,1,2-Trihalocyclopropanes with a Polar Substituent Attached to C-2; Further Evidence for Regioselective Attack Directed by Hydrogen Bonding

ARKIVOC, vi, (2008), 26-41.

Leiv K. Sydnes^*, Bjarte Holmelid, Ole H. Kvernenes, Marcel Sandberg, Mari Hodne, Einar Bakstad

Synthesis and some chemical properties of 3,3,4,4-tetraethoxybut-1-yne

Tetrahedron, 63, (2007), 4144-4148.

Leiv K. Sydnes^*, Shire Elmi, Per Heggen, Bjarte Holmelid, Didrik Malthe-Sørensen.

Conversion of Azobenzenes into N,N’-Diarylhydrazines by Sodium Dithionite

Synlett, No. 11, (2007), 1695-1698.

Leiv K. Sydnes^*, Gry Pedersen, Bjarte Holmelid, Marcel Sandberg

Chemistry of Acylals. IV. BF₃-catalyzed Formation of Substituted a,a’-Bis-(arylmethyl-idene)cycloalkanones from Acylals and 1-Cycloalkenyl Trimethyl-silyl Ethers

Synthesis, 23, (2007), 3692-3696.