id:"swepub:oai:DiVA.org:kth-33988"
Search: id:"swepub:oai:DiVA.org:kth-33988" > A statistical desig...
- 1 of 1
- Previous record
- Next record
- To hitlist
- Badia, J. D. (author)
A statistical design of experiments for optimizing the MALDI-TOF-MS sample preparation of polymers. An application in the assessment of the thermo-mechanical degradation mechanisms of poly (ethylene terephthalate)
- Article/chapterEnglish2011
Publisher, publication year, extent ...
- Elsevier BV,2011
- printrdacarrier
Numbers
- LIBRIS-ID:oai:DiVA.org:kth-33988
- https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-33988URI
- https://doi.org/10.1016/j.aca.2011.02.063DOI
Supplementary language notes
- Language:English
- Summary in:English
Part of subdatabase
- SwePubSwePub
Classification
Notes
- QC 20110523
- The sample preparation procedure for MALDI-TOF MS of polymers is addressed in this study by the application of a statistical Design of Experiments (DoE). Industrial poly (ethylene terephthalate) (PET) was chosen as model polymer. Different experimental settings (levels) for matrixes, analyte/matrix proportions and concentrations of cationization agent were considered. The quality parameters used for the analysis were signal-to-noise ratio and resolution. A closer inspection of the statistical results provided the study not only with the best combination of factors for the MALDI sample preparation, but also with a better understanding of the influence of the different factors, individually or in combination, to the signal. The application of DoE for the improvement of the MALDI measure of PET stated that the best combination of factors and levels was the following: matrix (dithranol), proportion analyte/matrix/cationization agent (1/15/1, V/V/V), and concentration of cationization agent (2 g L-1). In a second part, multiple processing by means of successive injection cycles was used to simulate the thermo-mechanical degradation effects on the oligomeric distribution of PET under mechanical recycling. The application of MALDI-TOF-MS showed that thermo-mechanical degradation primarily affected initially predominant cyclic species. Several degradation mechanisms were proposed, remarking intramolecular transesterification and hydrolysis. The ether links of the glycol unit in PET were shown to act as potential reaction sites, driving the main reactions of degradation.
Subject headings and genre
- NATURVETENSKAP Kemi Analytisk kemi hsv//swe
- NATURAL SCIENCES Chemical Sciences Analytical Chemistry hsv//eng
- Matrix-assisted laser desorption/ionization time-of-flight
- Mass spectrometry
- Design of Experiments
- Poly (ethylene terephthalate)
- Recycling
- Thermo-mechanical degradation
- Analytical chemistry
- Analytisk kemi
Added entries (persons, corporate bodies, meetings, titles ...)
- Strömberg, EmmaKTH,Polymera material(Swepub:kth)u1hnbchc (author)
- Ribes-Greus, A. (author)
- Karlsson, SigbrittKTH,Fiber- och polymerteknologi(Swepub:kth)u1g9umtq (author)
- KTHPolymera material (creator_code:org_t)
Related titles
- In:Analytica Chimica Acta: Elsevier BV692:1-2, s. 85-950003-26701873-4324
Internet link
Find in a library
- Analytica Chimica Acta (Search for host publication in LIBRIS)
To the university's database
- 1 of 1
- Previous record
- Next record
- To hitlist
Find more in SwePub
- By the author/editor
- Badia, J. D.
- Strömberg, Emma
- Ribes-Greus, A.
- Karlsson, Sigbri ...
- About the subject
-
- NATURAL SCIENCES
- NATURAL SCIENCES
- and Chemical Science ...
- and Analytical Chemi ...
- Articles in the publication
- Analytica Chimic ...
- By the university
- Royal Institute of Technology
Search outside SwePub
- Extend your search to:
- Google Book Search
- Google Scholar
Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.
- Copyright © LIBRIS - National Library Systems
- LIBRIS.kb.se
