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12/9/2008

Mass spectrometer

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Shimadzu Scientific Instruments' gel permeation chromatography (GPC) mass spectrometer is for quick analysis of ultra-trace substances such as impurities and additives in plastics and synthetic polymers

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Shimadzu Scientific Instruments (Columbia, Md.) has introduced the GPC-AccuSpot-AXIMA, a gel permeation chromatography (GPC) mass spectrometer designed for quick analysis of ultratrace substances (those present in extremely small amounts), such as impurities and additives in plastics and synthetic polymers. The device combines a high-resolution GPC system, the AccuSpot fully automated fraction collection and spotting device and an AXIMA series MALDI-TOF mass spectrometer. The system mixes the GPC eluent with MALDI matrix solution online and automatically deposits the resulting solution onto the MALDI sample target, resulting in improved efficiency and productivity. In addition, intelligent Polymer Analysis software calculates monomer unit molecular weight, end termini masses, polydispersity and average molecular weight. It helps detect substances that can affect material characteristics, such as durability, and/or cause material deterioration.

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