|Author||Aminlashgari, Nina ♦ Hakkarainen, Minna|
|Subject Domain (in DDC)||Natural sciences & mathematics ♦ Chemistry & allied sciences|
|Subject Keyword||Surface assisted laser desorption ionization-mass spectrometry (SALDI-MS) ♦ Polyester ♦ Polycaprolactone ♦ Degradation ♦ Nanoparticles ♦ Bioinformatics ♦ Proteomics ♦ Biotechnology ♦ Analytical Chemistry ♦ Organic Chemistry|
|Abstract||Novel surface assisted laser desorption ionization-mass spectrometry (SALDI-MS) method was developed for rapid analysis of low molecular mass polyesters and their degradation products by laser desorption ionization-mass spectrometry. Three polycaprolactone materials were analyzed by the developed method before and after hydrolytic degradation. The signal-to-noise values obtained by SALDI-MS were 20–100 times higher compared with the ones obtained by using traditional MALDI-MS matrices. A clean background at low mass range and higher resolution was obtained by SALDI-MS. Different nanoparticle, cationizing agent, and solvent combinations were evaluated. Halloysite nanoclay and magnesium hydroxide showed the best potential as SALDI surfaces. The SALDI-MS spectrum of the polyester hydrolysis products was verified by ESI-MS. The developed SALDI-MS method possesses several advantages over existing methods for similar analyses.|
|Age Range||18 to 22 years ♦ above 22 year|
|Education Level||UG and PG|
|Learning Resource Type||Article|
|Publisher Institution||The American Society for Mass Spectrometry|
|Publisher Place||New York|
|Journal||Journal of The American Society for Mass Spectrometry|
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