Stig Valdersnes
Publications
Academic articles
2025
Target and non-target screening of poly- and perfluoroalkyl substances (PFAS) in fish liver samples from the River Nile in Sudan: A baseline assessment
Marine Pollution Bulletin
211
2025
Target and non-target screening of poly- and perfluoroalkyl substances (PFAS) in fish liver samples from the River Nile in Sudan: A baseline assessment
Marine Pollution Bulletin
211
2025
Horisontal revisjon standarden pkt 6
Revisjonsrapport akkreditert virksomhet
2025
Revisjonsrapport metode 044
Internrevisjon akkreditert virksomhet
2025
Persistent organic pollutants (POPs), emerging contaminants, metals, and energy in the Barents Sea food chain
NECS
2025
Analyses of PFAS, inorganic arsenic and methyl mercury in selected seafood samples
NECS
2025
Identification, relative uptake, and effects of PFAS from AFFF and AFFF-impacted soil in Atlantic Salmon Hepatocytes
NECS
2025
Screening of PFAS in wastewater and sewage sludge from WWTPs in Bergen, Norway
NECS
2025
Determination of Nanoparticles and Elements in Blue Mussels (Mytilus edulis) along the Norwegian Coastline
NECS
2025
Bioaccumulation and effects of legacy and novel PFAS in blue mussels exposed to an extract of AFFF impacted soil
NECS
2024
Determination of Nanoparticles and Elements in Blue Mussels (Mytilus edulis) along the Norwegian Coastline
Journal of Agricultural and Food Chemistry
72
p. 25481-25489
2023
Vertical distribution of inorganic nanoparticles in a Norwegian fjord
Marine Environmental Research
188
2019
Complete validation according to current international criteria of a confirmatory quantitative method for the determination of nitrofuran metabolites in seafood by liquid chromatography isotope dilution tandem mass spectrometry
Food Chemistry
300:125175
p. 1-9
2019
A validated routine method for butyltin determination in seafood by gas chromatography inductively coupled plasma isotope dilution mass spectrometry
Journal of AOAC International
102
p. 278-285
2018
Single lab validation of a routine method for butyltin determination in seafood by isotope dilution inductively coupled plasma isotope dilution mass spectrometry
Journal of AOAC International
101
2017
Estimating human exposure to perfluoroalkyl acids via solid food and drinks: Implementation and comparison of different dietary assessment methods
Environmental Research
158
p. 269-276
2017
Geographical trends of PFAS in cod livers along the Norwegian coast
PLOS ONE
12:e0177947
p. 1-15
2017
Total Mercury, Methylmercury, Inorganic Arsenic and Other Elements in Meat from Minke Whale (Balaenoptera acutorostrata) from the North East Atlantic Ocean
Bulletin of Environmental Contamination and Toxicology
99
p. 161-166
2017
Comprehensive characterization of ethoxyquin transformation products in fish feed by traveling-wave ion mobility spectrometry coupled to quadrupole time-of-flight mass spectrometry
Analytica Chimica Acta
965
p. 72-82
2017
Validation of a Method for the Determination of Balenine/Ophidine in Whale
Journal of AOAC International
100
p. 1814-1818
2017
Validation of a method for the determination of balenine/ophidine in whale
J. AOAC Int.
2016
Collaborative study on determination of mono methylmercury in seafood
Food Chemistry
194
p. 424-431
2016
Assessment of Hg Pollution Released from a WWII Submarine Wreck (U-864) by Hg Isotopic Analysis of Sediments and Cancer pagurus Tissues
Environmental Science and Technology
50
p. 10361-10369
2015
Heavy metals and POPs in red king crab from the Barents Sea
Food Chemistry
167
p. 409-417
2014
Arsenic-containing fatty acids and hydrocarbons in marine oils -Determination using reversed-phase HPLC-ICP-MS and HPLC-qTOF-MS
Talanta: The International Journal of Pure and Applied Analytical Chemistry
121
p. 89-96
2014
Residue levels of enrofloxacin and ciprofloxacin in processed animal by-products used in Atlantic salmon feeds and their long-term carry-over to the edible part of the fish
Aquaculture Nutrition
20
p. 712-721
2013
A baseline study of levels of mercury, arsenic, cadmium and lead in Northeast Arctic cod (Gadus morhua) from different parts of the Barents Sea
Marine Pollution Bulletin
67
p. 187-195
2013
Selective transformations of a diprotected 2-oxobutanedia
Helvetica Chimica Acta
96
p. 1841-1850
2012
Classification of Geographical Origin by PNN Analysis of Fatty Acid Data and Level of Contaminants in Oils From Peruvian Anchovy
Journal of the American Oil Chemists Society
89
p. 1173-1182
2012
A Method for the Routine Determination of Methylmercury in Marine Tissue by GC Isotope Dilution-ICP-MS
Journal of AOAC International
95
p. 1189-1194
2012
Total and inorganic arsenic in fish samples from Norwegian waters
Food Additives and Contaminants
5
p. 229-235
2012
Toward the Synthesis of Modified Carbohydrates by Conjugate Addition of Propane-1,3-dithiol to alpha,beta-Unsaturated Ketones
Helvetica Chimica Acta
95
p. 2099-2122
2011
Toxicokinetics and carry-over model of alpha-hexabromocyclododecane (HBCD) from feed to consumption-sized Atlantic salmon (Salmo salar)
Food Additives and Contaminants
28
p. 1274-1286
2011
Concentrations of mercury, arsenic, cadmium and lead in Greenland halibut (Reinhardtius hippoglossoides) caught off the coast of northern Norway
Marine Biology Research
7
p. 733-745
2010
Responses in the brain proteome of Atlantic cod (Gadus morhua) exposed to methylmercury
Aquatic Toxicology
100
p. 51-65
2009
Preparation of 2-Ethoxy-3-hydroxy-4-(perfluoroalkyl)tetrahydropyran Derivatives from Substituted 4- Ethoxybut-3-en-1-ols
European Journal of Organic Chemistry
33
p. 5816-5831
2008
Stereospecific synthesis of allylic and homoallylic alcohols from functionalized propargylic alcohols
ARKIVOC
p. 242-268
2007
3,3,4,4-Tetraethoxybutyne – An Excellent Starting Material for the Synthesis of Range of Functionalized Compounds
Jordan Journal of Chemistry
2
p. 105-116
2007
Recent advances in the synthesis of carbohydrate analogs
Pure and Applied Chemistry
79
p. 2137-2142
2006
Identification of several Tonalide (R) transformation products in the environment
International Journal of Environmental Analytical Chemistry
86
p. 461-471
2005
From 3,3,4,4-tetraethoxybutyne to carbohydrate mimics
Pure and Applied Chemistry
77
p. 119-130
Academic lectures
2025
Rapid quantification of Ultra-Short-Chain PFAS in AFFF-impacted water and biota
Fearless project meeting
2025
Prioritisation of CECs in the marine environment using hazard-based filtering and ranking approaches
SETAC
2025
Fate and effects of perfluoroalkyl substances and their and alternatives in the marine environments
SETAC
2025
Monitoring of nanoparticles in seafood by single particle ICP-MS: Possibililities and challenges
EWCPS2025
Scientific lectures
2025
Fate and effects of perfluoroalkyl substances their and alternatives in the marine environments
2025
Analyses of PFAS, inorganic arsenic and methylmercury in selected seafood samples
2025
Determination of Nanoparticles and Elements in Blue Mussels (Mytilus edulis) along the Norwegian Coastline
2025
Fate and effects of perfluoroalkyl substances and their and alternatives in the marine environments
2024
Single Particle ICP-MS and the Quest for Marine Nanoparticles
2024
Institute of Marine Research and CONTRAST
CONTRAST-møte hos NIVA i Oslo
2024
Møte med Avinor AS om PFAS
Heldagsmøte
2023
PFAS - from hero ot villain to criminal
Nordic PFAS seminar
2023
Climate Change And Impact On Critical Contaminants In Seafood Ongoing Projects And Future Research Needs.
2022
Analysis of perfluoroalkyl and polyfluoroalkyl substances (PFAS) in marine samples: Recent developments and challenges
Norsk Symposium i Kromatografi
2022
PFAS og Orbitrap
Foredrag for besøk fra NFD
2018
Surveillance of microplastics (MPs) in seafood. Ongoing activity and future perspectives. Poster Presentation
2018
Microplastics in Seafood – An Overview of Surveillance and Analytical Activities at the Institute of Marine Research
2017
Environmental contaminants in wild fish from the North East Atlantic
2016
Om NMKL
Foredrag for labforum
2016
Resultater for PCB-analyser i hval
Foredrag for Fremmedstofflaboratoriet
2015
Forurensning i reker i Nordsjøen
Tekst og data til miljøstatus.no
2015
Kvikksølv
Foredrag for Grunnstofflaboratoriet
2015
Food Control: authentication using contaminant profile
AOAC Europe - NMKL - NordVal International Symposium Food Labs in a Crystal Ball,
2015
Spatial variation of mercury on mercury in atlantic cod (gadus morhua) in north east atlantic - a comprehensive baseline study
Oral presentation 12th International Conference on Mercury as a Global Pollutant
2015
Mercury isotopic analysis via cold vapour generation multi-collector ICP-MS: mass bias correction and provenancing of Hg pollution
12th International Conference on Mercury as a Global Pollutant
2015
What is/could be the next pollutant that is toxic?
Foredrag på seminaret "Miljøgift i fisk og sjømat", arrangert av Eurofins og den biomarine klyngen Legasea i Ålesund
2013
ICP-MS as a monitoring tool to ensure the quality and safety of norwegian pelagic fish
Winter Plasma Conference
2013
Kvikksølv i sjømat frå Hardangerfjorden - ikkje berre elendigheit?
Foredrag for NJFF
2010
Perfluorinated compounds (PFCs) – a necessary evil? Routine determination of selected PFCs in marine samples
Foredrag for NKS Bergen avdeling
2009, 2010
PÅ VEI: Kjemi i sjømat
Foredrag for nye studenter
2009, 2010
Determination of mono-methylmercury (MMHg+) by isotope dilution
CEN TC 275/WG 10
2008
Quality assessment and challenges with regards to analytical methods
Seafood safety workshop
2008
Methylmercury determination using isotope dillution mass spectrometry (IDMS): Prelimnary results
Science Progress
2007
Fluorochemicals: Synthesis, Properties, Chemical Analysis and Environmental Impact
Onsdagsmøte
2007
Metylkvikksølv metodeutvikling
Heldagsmøte
2007
PFAS metodeutvikling
Heldagsmøte
2007
Comparison of external calibration and isotope dilution in the determination of tributyltin (TBT) in seafood by GC-ICP-MS
Trace Spec
2006
Fluorochemicals - Synthesis, Properties, Chemical Analysis and Environmental Impact
Obligatorisk prøveforelesning
2005
Modified carbohydrates from 3,3,4,4-tetraethoxy-1-butyne.
20. Organisk Kjemisk Vintermøte
2005
Conjugate addition to bis-ynones.
Ley group seminar, Cambridge, UK
Poster
2025
Screening of PFAS in wastewater and sewage sludge from WWTPs in Bergen, Norway
2024
Fate and effects of perfluoroalkyl substances and their precursors and alternatives in Norwegian marine environment and seafood species (FEARLESS)
2024
Fate and effects of perfluoroalkyl substances and their precursors and alternatives in Norwegian marine environments and seafood species (FEARLESS)
2020
Method development for the screening and determination of silver nanoparticles in blue mussels by DLS, sp-ICP-MS and SEM
NECS
2020
Screening for nanoparticles in marine organisms
2020
Determination of metal oxide nanoparticles in the marine environment.
2018
Towards a future screening method for nanoparticles in seafood –For surveillance and risk assessment of food safety
2016
Metagenomic analysis of the minke whale Balaenoptera acutorostrata gut microbiome.
NORBIS Summer School, “An introduction to molecular biology, bioinformatics and biostatistics"
2015
Towards a future standard method for the determination of mono methylmercury in seafood
AOAC Annual meeting
2014
Levels of pesticides in marine oils and potential use of pesticide profile for authentification purposes
68. årsmøte i NMKL på Island
2014
Levels of pesticides in marine oils and potential use of pesticide profile for authentification purposes
13th IUPAC International congress of pesticide chemistry
2014
Levels of pesticides in marine oils and potential use of pesticide profile for authentification purposes
American Chemical Society
2014
Monitoring to ensure seafood safety of large fish stocks – A baseline study of Atlantic cod (Gadus morhua)
68. årsmøte i NMKL på Island
2013
Determination of the brominated flame retardant HBCD by RP-HPLC-ICP-MS and its application to environmental monitoring
NMKL årsmøte i Sverige
2013
Determination of the brominated flame retardant HBCD by RP-HPLC-ICP-MS and its application to environmental monitoring
Winter Plasma Conference
2013
Comparison of UPLC-MS/MS and RRLC-MS/MS for the large scale routine determination of PFAS in fish and seafood monitoring
5th international workshop on per- and polyfluorinated alkyl substances - PFAS
2013
onitoring to ensure seafood safety of large fish stocks – A baseline study of Atlantic cod (Gadus morhua)
ICES 2013 på Island
2013
Mattilsynets program: Miljøgifter i fisk og fiskevarer 2012. – Undersøkelse av fremmedstoffer i kongekrabbe (Paralithodes camtschaticus) og oljer
Rapport for Mattilsynet
2013
Comparison of GC-MS and GC-ICP-MS for the determination of PBDEs in marine samples from a food safety monitoring program
NMKL årsmøte i Sverige
2013
Comparison of GC-MS and GC-ICP-MS for the determination of PBDEs in marine samples from a food safety monitoring program
Winter Plasma Conference
2012
Perfluorinated alkyl substances in fish and seafood from Norwegian waters
4th International Workshop on PFAS
2012
CP-MS and HPLC-ICP-MS for large scale monitoring total arsenic and inorganic arsenic in Norwegian seafood
Nordic plasma Loen
2011
Development of a standardised method for the routine determination of methylmercury in seafood by isotope dilution plasma mass spectrometry
Winter Plasma Conference
2011
Concentrations of mercury in Greenland halibut (Reinhardtius hippoglossoides) caught off the coast of northern Norway
The 10th International Conference on Mercury as a Global Pollutant (ICMGP)
2009
Monitoring the levels of perfluorinated compounds in Norwegian seafood
QUASIMEME Workshop on PFC, 2009
2009
Mercury monitoring in Norwegian fisheries and aquaculture
ICMGP 2009 International Conference on Mercury as a Global Pollutant
2009
Behavioural responses and proteomic changes in the brain of Atlantic cod (Gadus morhua) exposed to MeHg and 2,2',4,4',5,5'-hexachlorobiphenyl (PCB-153)
15 th International Symposium on Pollutant Responses in Marine Organisms (PRIMO)
2007
Analyse av kvikksølv i sjømat.
Åpent hus
2004
Modified carbohydrates from 3,3,4,4-tetraethoxy-1-butyne.
19. Organisk Kjemisk Vintermøte
2003
Analysis of polycyclic musks AHTN (Tonalide®) and their transformation products
SETAC Europe 13th annual meeting
2002
Enantioselective Chromatographic Analyses of Transformation Products from Polycyclic Musks
2001
Oxidative reactivity of the synthetic musk compound Tonalide
Reports and dissertations
2025
Uttalelse til søknad om oppdatering av tillatelse til boring, produksjon og drift på Valhall
2025
Høringssvar angående søknad om utslipp i forbindelse med felttesting av kjemikalier på Gudrun
2025
Uttalelse angående søknad om permanent unntak fra forskriftskrav for drenasjevann på Draugen
2024
Uttalelse til søknad om boring av letebrønn 35/6-6 Horatio i Nordsjøen
2024
Single Particle ICP-MS and the Quest for Marine Nanoparticles
22. Landsmøtet i Kjemi
2024
390-Metyl- og totalkvikksølvbetemmelse, GC-ICPMS.
2024
Uttalelse til søknad om oppstart, drift og produksjon på Jotun FPSO
2024
Fremmedstoffer i villfisk 2023 - Bestemmelse av uorganisk arsen, metylkvikksølv og PFAS i utvalgte sjømatprøver
Rapport fra havforskningen
2023
Uttalelse til søknad for letebrønn 25/7-11 Norma
2023
Uttalelse til søknad om tillatelse til boring av pilothull på Halten Øst
2023
Uttalelse til søknad for om tillatelse til boring av pilotbrønn på Dvalin Nord
2023
Uttalelse til søknad om utslipp av olje og kjemikalier fra produsert vann på Osebergfeltet
2023
Uttalelse til søknad om produksjonsboring på Maria samt tilknyttede aktiviteter med installasjon, oppkobling, brønnopprenskning og brønnintervensjoner over feltets levetid
2023
Uttalelse til søknad om aktiviteter knyttet til avslutning av Valemon RGP
2022, 2024
Guidance Document on Analytical Parameters for the Determination of Per- and Polyfluoroalkyl Substances (PFAS) in Food and Feed
EURL Guidance document w/annex
2022
Uttalelse til søknad for letebrønn 6406/5-2 Tott West
2022
Uttalelse til søknad for letebrønn 25/4-16 North Kameleon 2
2022
Uttalelse til konsekvensutredning for Linnorm
2022
Uttalelse til søknad om utslipp av kaks på Johan Sverdrup feltet
2022
Uttalelse til konsekvensutredning for Iris Hades utbyggingsprosjekt
2022
Uttalelse til søknad om utslipp boring av letebrønn 6306/3-2 Bounty
2022
Svar på høring om tillatelse til utslipp fra foreløpig anleggsvirksomhet samt mudring, dumping og utfylling i forbindelse med bygging av Stad skipstunnel.
2021
Uttalelse til søknad om endret tillatelse til produksjon og drift på Aasta Hansteen
2021
Anmodning om uttalelse til søknad om endring av tillatelse til boring og produksjon på Kvitebjørn
2020, 2023
Retningslinjer for valg av matriser og akkrediteringsomfang
2020
600 - Kalibrering av instrument for nanopartikkelbestemmelse og bestemmelse av gull-nanopartikler i blåskjell med ICPMS
2020
600 - Kalibrering av instrument for nanopartikkelbestemmelse og bestemmelse av gull-nanopartikler i blåskjell med ICPMS
2020
Uttalelse til søknad om boring av letebrønn 7018/5-1 Spissa
2020
Uttalelse i forbindelse med høring av dokumentasjon utarbeidet av Nussir ASA for bruk av SIBX
2020
Uttalelse til søknad om utslipp fra overflatebehandling på Alvheim FPSO
2020
HØRINGSUTTALELSE VEDRØRENDE REGULERINGSPLAN MED KONSEKVENSUTREDNING FOR UTVINNING AV GULL I BOGADALENKOLSVIK I BINDAL KOMMUNE
2019
Kontrollkort for multianalyttmetoder
2019
Valideringsplan og rapport for Metode 394 -Balenin
2016
PCB in Norwegian minke whale
Rapport til NFD og Japanske myndigheter i forbindelse med norsk hvaleksport
2016
Relationship between PCB7 and total PCB in Norwegian minke whale (Balaenoptera acutorostrata)
Rapport til NFD og Japanske myndigheter i forbindelse med norsk hvaleksport,
2016
EN 16801 Foodstuffs — Determination of elements and their chemical species — Determination of methylmercury in foodstuffs of marine origin by isotope dilution GC-ICPMS
2016
Valideringsplan og rapport for Metode 432 - Ethoxyquin med metabolitter LC-MSMS
2015, 2016, 2017, 2018, 2019, 2023, 2024
Innspill overfor NFD i forhold til hvalanalyser for å bedre eksportforutsigbarheten for hval.
2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024
Diverse innspill til Mattilsynet i forbindelse med møter i Codex og EUs stående kommitteer.
2015
esults from the determination of the candidate reference material IRMM-427
Rapport for Joint Research Center (JRC) - Institute for Reference Materials and Measurements (IRMM)
2015
Vågehval: Økt utnyttelse og fangstverdi kan gi ny næring
Sluttrapport for Møre og Romsdal fylkeskommune
2015
Grunnlag for utvikling av ny industriell verdikjede med produksjon basert på utnyttelse av vågehval.
Sluttrapport for FHF
2015
Forurensning i tobis i Nordsjøen.
Tekst og data til miljøstatus.no
2014, 2015
Innspill angående metodikk til møter som Mattilsynet deltar på i kommisjonens stående kommitteer (f.eks. SCPAFF)
2014
nnspill til CX/MAS 15/36/4 (via mattilsynet) – Proposed Draft Principles for the Use of Sampling and Testing in International Food Trade: Explanatory Notes and Practical Examples
2014
Kjemisk testing av hvalolje og sammenligning med tidligere produkt av spekk
Sluttrapport til FHF
2014
Innspill til Discussion Paper on Maximum Levels for Methylmercury in Fish (CX/CF 15/9/13). Codex Committee on Contamimants in Foods (CCCF),
Innspill til Mattilsynet
2014
Report on the progress after 2013-05-01 on: WI 00275237 Foodstuffs - Determination of elements and their chemical species - Determination of methylmercury in food of marine origin
Fremdiftsrapport til den europeiske kommisjonen (EC) via CEN/DIN
2013, 2016, 2017, 2018, 2019
286 - TBT, tributyltinn - valideringslogg
2013
Geographical trends of perfluorinated alkyl substances (PFAS) in cod livers from harbors and fjords along the Norwegian coast.
5th international workshop on per- and polyfluorinated alkyl substances - PFAS.
2013
Report of the collaborative study on the quantitative determination of mono methylmercury in food of marine origin by GC-ICP-ID-MS
Avprøningsrapport til CEN
2012, 2014, 2016, 2017
VALIDERINGSPLAN OG RAPPORT -METODE 144 NITROFURANER
2012
Årsrapport 2011 Mattilsynets Program: Fremmedstoffer i villfisk med vekt på kystnære farvann: Delrapport II: Undersøkelser av hval
Rapport for Mattilsynet
2012
Årsrapport 2011 Mattilsynets program: Fremmedstoffer i villfisk med vekt på kystnære farvann: Delrapport I: Undersøkelser av miljøgifter i taskekrabbe
Rapport for Mattilsynet
2011
Miljøgifter og mikroorganismer i fisk og fiskevarer
Rapport for Mattilsynet
2011
Fremmedstoffer i villfisk med vekt på uorganisk arsen, metylkvikksølv, bromerte flammehemmere og perfluorerte alkylstoffer.
Rapport for Mattilsynet
2010, 2014, 2017, 2019, 2023
390 - Metyl- og totalkvikksølvbestemmelse, GC-ICPMS - valideringslogg
2010, 2012, 2013, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024
Valideringsrapport for kvantitativ bestemmelse av perfluorerte alkylstoffer-metode 349 (PFAS)
2010
Autentisering av marine oljer (Traceoil)
Rapport for mattilsynet
2010
Undersøkelser av fisk og skalldyr i Mossesundet som utgangspunkt for kostholdsråd - del 2: Skjell
Rapport for Moss kommune
2010
Undersøkelser av fisk og skalldyr i Mossesundet som utgangspunkt for kostholdsråd - del 1: Fisk
Rapport for Moss kommune
2009
ollaborative study of NMKL method 8.12.7: Methylmercury: determination by isotope dilution GC-ICPMS in foodstuffs
NMKL metode
2009
orvaltningsplan Nordsjøen :kunnskapsmangler og utfordringer knyttet til Ren og Trygg sjømat
Innspill til forvaltningsplan Nordsjøen
2009
Målingar av kvikksølv og PCB i abbor, gjedde og ål Tveitavatnet.
Rapport for Bergen kommune
2008
Mapping selected organic contaminants in the Barents sea 2007
2006, 2007
Metode for kvantitativ bestemmelse av perfluorerte alkylstoffer (PFAS)
FHF Sluttrapport
2006
Modified carbohydrates from 3,3,4,4-tetraethoxybut-1-yne
2001
Oksidasjon av muskforbindelsen Tonalide R og forsøk på deteksjon av oksidasjonsproduktene i biologiske prøver
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