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Sökning: id:"swepub:oai:DiVA.org:oru-51727" > Gas chromatography-...

  • Geng, Dawei,1986-Örebro universitet,Institutionen för naturvetenskap och teknik (författare)

Gas chromatography-atmospheric pressure chemical ionization-tandem mass spectrometry methods for the determination of environmental contaminants

  • BokEngelska2016

Förlag, utgivningsår, omfång ...

  • Örebro :Örebro university,2016
  • 83 s.
  • electronicrdacarrier

Nummerbeteckningar

  • LIBRIS-ID:oai:DiVA.org:oru-51727
  • https://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-51727URI

Kompletterande språkuppgifter

  • Språk:engelska
  • Sammanfattning på:engelska

Ingår i deldatabas

Klassifikation

  • Ämneskategori:vet swepub-contenttype
  • Ämneskategori:dok swepub-publicationtype

Serie

  • Örebro Studies in Chemistry,1651-4270 ;17

Anmärkningar

  • The recent developments and improvements of instrumental methods for the analyses of the environmental contaminants, especially the persistent organic pollutants (POPs), have made it possible to detect and quantify these at very low concentrations in environmental and biotic matrices.The main objective of this thesis is to demonstrate the capability of the atmospheric pressure chemical ionization technique (APCI), using gas chromatography coupled to tandem mass spectrometry for the determination of a wide range of environmental contaminants, including the POPs regulated by Stockholm Convention, such as polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs), polychlorinated biphenyls (PCBs), polybrominated diphenyl ethers (PBDEs), but also the derivates of PBDEs and novel brominated flame retardants (NBFRs).The APCI was operated in charge transfer condition, preferably producing molecular ions. Multiple reaction monitoring (MRM) experiments were optimized by adjusting cone voltage, collision energy and dwell time. Optimization of source parameters, such as gas flows and temperatures was also performed. Low concentration standards were analyzed, achieving a visible chromatographic peak for 2 fg 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) demonstrating the excellent sensitivity of the system. Adequate linearity and repeatability were observed for all the studied compounds. The performance of APCI methods was validated against the conventional methods using gas chromatography coupled to high resolution mass spectrometry for chlorinated compounds in a wide range of matrices including environmental, air, human and food matrices.The GC-APCI-MS/MS method was successfully applied to a set of 75 human serum samples to study the circulating levels of POPs in epidemiologic studies. Moreover the method was utilized to establish temporal trends of POPs in osprey eggs samples collected during the past five decades.

Ämnesord och genrebeteckningar

Biuppslag (personer, institutioner, konferenser, titlar ...)

  • van Bavel, Bert,ProfessorÖrebro universitet,Institutionen för naturvetenskap och teknik(Swepub:oru)bvl (preses)
  • Ericson Jogsten, Ingrid,PhDÖrebro universitet,Institutionen för naturvetenskap och teknik(Swepub:oru)iden (preses)
  • Hagberg, Jessika,DocentÖrebro universitet,Institutionen för naturvetenskap och teknik(Swepub:oru)jahg (preses)
  • Wang, Thanh,PhDÖrebro universitet,Institutionen för naturvetenskap och teknik(Swepub:oru)twg (preses)
  • Fiedler, Heidi,PhDÖrebro universitet,Institutionen för naturvetenskap och teknik(Swepub:oru)hefr (preses)
  • Olie, Kees,DocentUniversity of Amsterdam (opponent)
  • Örebro universitetInstitutionen för naturvetenskap och teknik (creator_code:org_t)

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