Endre søk
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet 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.
Vise andre og tillknytning
2017 (engelsk)Inngår i: The 7th Nordic Wood Biorefinery Conference held in Stockholm, Sweden, 28-30 Mar. 2017: NWBC 2017, Stockholm: RISE Bioekonomi , 2017, s. 98-103Konferansepaper, Publicerat paper (Fagfellevurdert)
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.

sted, utgiver, år, opplag, sider
Stockholm: RISE Bioekonomi , 2017. s. 98-103
Emneord [en]
analytical method, lignin, molar mass, size exclusion chromatography, standardisation
HSV kategori
Identifikatorer
URN: urn:nbn:se:ri:diva-29751ISBN: 9789186018207 (tryckt)OAI: oai:DiVA.org:ri-29751DiVA, id: diva2:1104053
Konferanse
7th Nordic Wood Biorefinery Conference held in Stockholm, Sweden, 28-30 Mar. 2017
Tilgjengelig fra: 2017-05-31 Laget: 2017-05-31 Sist oppdatert: 2019-06-20bibliografisk kontrollert

Open Access i DiVA

fulltext(337 kB)40 nedlastinger
Filinformasjon
Fil FULLTEXT01.pdfFilstørrelse 337 kBChecksum SHA-512
8f605d692cc26f5f1a561b06de78fb670ffd52850bb579482d4b205b5401f1dc701f551c9c60c385254791bd2b30fb770b3f3d2a4d940e68d9cfbca1c459fc39
Type fulltextMimetype application/pdf

Personposter BETA

Jacobs, AnnaAldaeus, FredrikRegnell Andersson, Sofia

Søk i DiVA

Av forfatter/redaktør
Jacobs, AnnaAldaeus, FredrikRegnell Andersson, Sofia
Av organisasjonen

Søk utenfor DiVA

GoogleGoogle Scholar
Totalt: 40 nedlastinger
Antall nedlastinger er summen av alle nedlastinger av alle fulltekster. Det kan for eksempel være tidligere versjoner som er ikke lenger tilgjengelige

isbn
urn-nbn

Altmetric

isbn
urn-nbn
Totalt: 137 treff
RefereraExporteraLink to record
Permanent link

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