Browsing by Author "Opstad, Aase Mari"
Now showing items 1-15 of 15
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Analyse av noen ukjente midt-spektrum forbindelser ved hjelp av elektrospray-massespektrometri
Tørnes, John Aasulf; Opstad, Aase Mari (2001) -
Bestemmelse av thiodiglykol i saltvann og marine sediment med væskekromatograf tilkoblet elektrospray massespektrometer
Hussain, Fatima; Opstad, Aase Mari (2002)Analytical methods for thiodiglycol (TDG) in sea water and marine sediment have been developed. The methods are based on solid phase extraction and analysis by use of HPLC-API-ES coupled to a MS in SIM positive ion modus. ... -
Characterisation of a munition grade lewisite mixture
Tørnes, John Aasulf; Opstad, Aase Mari; Bjerkeseth, Leif Haldor; Optun, Odd Inge (2001)The three compounds trans-lewisite I, all-trans-lewisite II and all-trans-lewisite III have been identified in a munition grade lewisite mixture probably originating from World War II. all-trans-Lewisite II and ... -
Development of a chemical, atomic and toxic compound surveillance system - CATSS
Tørnes, John Aasulf; Gran, Hans Christian; Pedersen, Bjørn; Opstad, Aase Mari; Prydz, Petter Andre; Wiik, Øyvind; Nordahl, Anders (2004)A demonstrator of an automatic surveillance system for chemical, radiological and toxic compounds, called CATSS, has been developed at FFI. The system contains several commercially available detectors integrated into CATSS. ... -
Ekstraksjon av fosfonsyrer fra vannfase ved hjelp av fast fase ekstraksjon
Tørnes, John Aasulf; Hansen, Lise-Lotte; Kalfjøs, Helen Therese; Opstad, Aase Mari; Røen, Bent T. (2000)Methylation of methylphosphonic acids with diazometane gives good results, even if the eluate is acidic. Extraction of methylphosphonic acids from water using solid phase extraction has been tested with three differents ... -
FFIs deltakelse i SIBCRA-laboratorieøvelse for blandede prøver, november 2007 - februar 2008
Breivik, Hanne; Olsen, Jaran Strand; Opstad, Aase Mari; Skogan, Gunnar; Enger, Elin; Aarskaug, Tone; Kippe, Halvor; Gilljamm, Berit Harstad (2010)FFI deltok i en laboratorieøvelse arrangert av SIBCRA Subgroup” (under ”NAAG/JCG CBRN”), med varighet fra november 2007 til februar 2008. Hensikten var å analysere miljøprøver som kunne inneholde blandinger av både biologiske, ... -
GC-MS investigation of VX stored in a steel container
Opstad, Aase Mari (2007)En stålcontainer med innhold av det kjemiske stridsmidlet VX har vært lagret i mer enn 40 år ved FFI ved -18 °C. Innholdet ble analysert ved hjelp av GC-MS med hensyn på VX og VX nedbrytningsforbindelser i både EI- og CI ... -
Identification and quantification by GC-MS of Sulphur mustard and related compounds after long time storage in sea water
Opstad, Aase Mari; Tørnes, John Aasulf (2004)Sulphur mustard in sea water undergoes decomposition to different products over time. After two weeks mustard gas is not detected in the sea water nor in the sediment. Ten decomposition products were identified in sea ... -
Investigation and risk assessment of ships loaded with chemical ammunition scuttled in Skagerrak
Tørnes, John Aasulf; Voie, Øyvind Albert; Ljønes, Marita; Opstad, Aase Mari; Bjerkeseth, Leif Haldor; Hussain, Fatima (2002)The Norwegian authorities gave in 1945 permission to scuttle ships loaded with captured chemical ammunition on board in an area approximately 14 km X 4 km in size, 25 nautical miles south-east of Arendal. The total amount ... -
Metodeutvikling for ekstraksjon av organiske arsenforbindelser i vannholdige prøver
Opstad, Aase Mari (2005)Many of the organoarsenic compounds, such as clark I, lewisite II, phenylarsenic oxide and adamsite, will degrade in contact with water. The hydrolysed compounds have to be derivatised before analysis by GC-MS. Thiols are ... -
Påvisning av pepperspray i tekstiler
Opstad, Aase Mari; Røen, Bent Tore; Gilljamm, Berit Harstad; Bjerkeseth, Leif Haldor (2015-09-29)Forsvarets forskningsinstitutt (FFI) ble lørdag 15. februar 2014 anmodet av Oslo brann- og redningsetat (OBRE) om å undersøke klær fra en person som var blitt påført en spray av ukjent type. FFI mottok klærne lørdag kveld ... -
Protecting our food: Can standard food safety analysis detect adulteration of food products with selected chemical agents?
Pedersen, Bjørn; Gorzkowska-Sobas, Agnieszka A; Gerevini, Marco; Prugger, Raffaello; Belenguer, Jose; Maletti, Marco; Ljønes, Marita; Gilljam, Berit Harstad; Tønsager, Janne; Opstad, Aase Mari; Davidson, Rebecca K. (2016)The food we eat and water we drink is routinely tested for a range of biological and chemical contaminants, which can be hazardous to human health, as part of food safety legislative requirements. The vulnerability of the ... -
Sampling of solid surfaces after an alleged use of chemical warfare agents
Opstad, Aase Mari (1999) -
Serial Ricinine Levels in Serum and Urine after Ricin Intoxication
Røen, Bent Tore; Opstad, Aase Mari; Haavind, Anniken; Tønsager, Janne (2013)Ricinine is an alkaloid present in the castor bean plant (Ricinus communis) that can be used as a biomarker for ricin poisoning. Serial ricinine levels are reported in the serum and urine of a patient suffering from ... -
Syntese og analyse av fenyldiklorarsen
Opstad, Aase Mari; Pedersen, Frank Marton (2004)Reaction of phenylarsonic acid with thionyl chloride gave phenyldichloroarsine after more than 2.5 hours at temperatures higher than 55 °C. The reaction mixture also contains Clark I and trichloroarsine among other compounds.