Rapid identification of polyamides using direct analysis in real time mass spectrometry.
Journal
Rapid communications in mass spectrometry : RCM
ISSN: 1097-0231
Titre abrégé: Rapid Commun Mass Spectrom
Pays: England
ID NLM: 8802365
Informations de publication
Date de publication:
Aug 2020
Aug 2020
Historique:
received:
17
09
2019
revised:
03
12
2019
accepted:
17
12
2019
pubmed:
29
12
2019
medline:
29
12
2019
entrez:
29
12
2019
Statut:
ppublish
Résumé
Polyamide (PA) is the generic name of polymers synthesized by linking monomers via amide bonds, and various types of PAs with different monomer compositions are known. Distinguishing PA polymers is useful in directing monomer residual testing, product testing, and reverse engineering, but is analytically challenging and cumbersome. To simplify this, we explored the applicability of direct analysis in real time mass spectrometry (DART-MS) for screening PA polymers. A DART ion source coupled to a quadrupole Orbitrap (high-resolution (HR) mass spectrometer) was employed for this study. Ten types of PA polymers and four retail samples were evaluated. The DART-HRMS data for these samples, as well as the DART-MS/MS (MS Ions corresponding to the cyclic or linear monomers and oligomers of each PA polymer were detected in each DART-HR mass spectrum. Although similar DART-HR mass spectra were obtained for PA6, PA66, and PA6/PA66 (polymer blends of PA6 and PA66), their DART tandem mass spectra were completely different. The analysis was repeatable, and nearly identical DART tandem mass spectra were obtained on different days, by different operators, and with different equipment. This technique was successfully applied to commercially available samples. Ten types of PA polymers were distinguished using DART-HRMS and DART-MS
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
e8707Subventions
Organisme : Japan Food Chemical Research Foundation
ID : H29-002
Organisme : Japan Food Chemical Research Foundation
ID : H30-002
Informations de copyright
© 2019 John Wiley & Sons, Ltd.
Références
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