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Synthetic Polymer Structure Analysis Poly Propylene Glycol (PPG) [MALDI Application]

MSTips No.171

The JMS-S3000 “SpiralTOF is a MALDI-TOFMS that incorporates an innovative SpiralTOF ion optics system. The JMS-S3000 is available with a TOF-TOF option that can acquire high-energy collision induced dissociation (CID) product ion spectra for monoisotopically selected precursor ions. This monoisotopic precursor selection is made possible by the fact that the distance to the ion gate is 15 m, which is more than one order of magnitude longer than that of conventional MALDI TOF-TOF instruments. Additionally, the second TOF MS incorporates a re-acceleration mechanism and an offset parabolic reflectron, another innovative optical design developed by JEOL. This unique design enables seamless observation of product ions ranging from very low m/z up to that of the precursor ion. In this work, we analyzed Polypropylene Glycol (PPG) by using the JMS-S3000 SpiralTOF with the TOF-TOF option. The resulting high-energy CID data was then processed using the Polymerix™ (Sierra Analytics, Inc., http://massspec.com/) analysis software.

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