Ändra sökning
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Mitigating trade barriers by standardized determination of lignin molar mass
RISE - Research Institutes of Sweden, Bioekonomi.ORCID-id: 0000-0002-9892-5954
RISE - Research Institutes of Sweden, Bioekonomi.ORCID-id: 0000-0003-0779-5267
FPInnovations, Canada.
FPInnovations, Canada; University Mohammed VI Polytechnic, Morocco.
Visa övriga samt affilieringar
2017 (Engelska)Ingår i: The 7th Nordic Wood Biorefinery Conference held in Stockholm, Sweden, 28-30 Mar. 2017: NWBC 2017, Stockholm: RISE Bioekonomi , 2017, s. 98-103Konferensbidrag, Publicerat paper (Refereegranskat)
Abstract [en]

RISE Bioeconomy, FPInnovations and VTT Technical Research Centre of Finland Ltd are working on a draft for an official ISO method for the determination of lignin molar mass. The draft will include two methods that can be used by different laboratories as reference methods, which are based on organic and aqueous size exclusion chromatography (SEC). Four samples of kraft lignin of different origin were analysed by three laboratories using the current in-house methods as well as a harmonised analytical setup. It was clear that the results differed largely between the different methods, for example, the weight average molar mass (Mw) for the LignoForce softwood lignin (LF-SW) ranged from 3,300 t0 11,100g/mol using the different methods. Harmonisation of aqueous SEC was successful. The method comprises SEC using 0l.1M sodium hydroxide as the mobile phase, a mobile phase flow rate of 0.5mL/min, Waters columns MCX 1,000A and 100,000A in series and calibration/calculation using polystyrene sulphonate standards using a linear fit. However, organic SEC was more complex and would require further investigations. Although the aqueous SEC analysis was repeatable, it was concluded that a strategy for data evaluation should be developed in order to achieve a method applicable for quality assessments.

Ort, förlag, år, upplaga, sidor
Stockholm: RISE Bioekonomi , 2017. s. 98-103
Nyckelord [en]
analytical method, lignin, molar mass, size exclusion chromatography, standardisation
Nationell ämneskategori
Kemiteknik
Identifikatorer
URN: urn:nbn:se:ri:diva-29751ISBN: 9789186018207 (tryckt)OAI: oai:DiVA.org:ri-29751DiVA, id: diva2:1104053
Konferens
7th Nordic Wood Biorefinery Conference held in Stockholm, Sweden, 28-30 Mar. 2017
Tillgänglig från: 2017-05-31 Skapad: 2017-05-31 Senast uppdaterad: 2019-06-20Bibliografiskt granskad

Open Access i DiVA

fulltext(337 kB)40 nedladdningar
Filinformation
Filnamn FULLTEXT01.pdfFilstorlek 337 kBChecksumma SHA-512
8f605d692cc26f5f1a561b06de78fb670ffd52850bb579482d4b205b5401f1dc701f551c9c60c385254791bd2b30fb770b3f3d2a4d940e68d9cfbca1c459fc39
Typ fulltextMimetyp application/pdf

Personposter BETA

Jacobs, AnnaAldaeus, FredrikRegnell Andersson, Sofia

Sök vidare i DiVA

Av författaren/redaktören
Jacobs, AnnaAldaeus, FredrikRegnell Andersson, Sofia
Av organisationen
Bioekonomi
Kemiteknik

Sök vidare utanför DiVA

GoogleGoogle Scholar
Totalt: 40 nedladdningar
Antalet nedladdningar är summan av nedladdningar för alla fulltexter. Det kan inkludera t.ex tidigare versioner som nu inte längre är tillgängliga.

isbn
urn-nbn

Altmetricpoäng

isbn
urn-nbn
Totalt: 137 träffar
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
v. 2.35.8