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Technical notes

Application Note 526: Automated comparative analysis of GC–MS chromatograms using ChromCompare
This Application Note describes the automated chemical profiling of complex chromatograms using the ChromCompare® module of the TOF-DS software platform. The ability of ChromCompare to provide rapid and objective comparisons is explained by reference to the underlying processes, and illustrated with examples from the aroma profiling of wine and strawberries.
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Application Note 528: Select-eV: The next generation of ion source technology
This Application Note describes Select-eV, a new development in ion-source technology for GC–MS that allows the energy of electron ionisation to be reduced on a sliding scale from 70 eV to 10 eV without impacting sensitivity, simply by changing a parameter in the method. As well as describing the theoretical background to the technique and the benefits that stem from low-energy (‘soft’) electron ionisation, we point out, through a series of application examples, how Select-eV breaks new ground by avoiding the inconveniences typically associated with soft ionisation techniques for GC–MS.
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UK
UK
Markes International Ltd
Gwaun Elai Medi-Science Campus
Llantrisant
RCT
CF72 8XL, UK
Tel: +44 (0)1443 230935
USA (East)
USA (East)
Markes International, Inc
11126-D Kenwood Road
Cincinnati
Ohio 45242
USA
Tel: 866-483-5684 (toll-free)
USA (West)
USA (West)
Markes International, Inc
2355 Gold Meadow Way
Gold River
California 95670
USA
Tel: 866-483-5684 (toll-free)
Germany
Germany
Markes International GmbH
Schleussnerstrasse 42
D-63263 Neu-Isenburg
Frankfurt
Germany
Tel: +49 (0)6102 8825569
Part of Schauenburg International
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