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Documentation in support of your JEOL product.

JMS-T200GC msFineAnalysis Brochure

For qualitative analysis of High Resolution GC Mass Spec data, JEOL has developed msFineAnalysis software that integrates both EI and soft ionization data (GC/CI, PI, FI) with library search, exact mass, and isotope data. The software compares molecular formula information acquired from the NIST library search with soft ionization exact mass data analysis to ensure accurate qualitative results. It automatically examines the NIST library search results, reduces the possibility of false positive identifications, and selects the correct components from multiple candidates with similar scores. For unknown components not registered in the NIST libraries, it estimates molecular formulas by using the soft ionization data, acquires partial structure information and estimates structural formulas by using the EI data. msFineAnalysis takes qualitative GC-MS analysis to a whole new level, and is a major addition to the capabilities of our AccuTOF-GCx-plus

JMS-T200GC AccuTOF™ GCx-plus for Petroleum Applications

High Resolution, Time-of-Flight Mass Spectrometer High mass-resolution, which enables differentiation of various classes of hydrocarbons by their exact mass masses, in combination with soft ionization methods, which enable unambiguous detection of hydrocarbon molecular ions, is an extremely powerful tool for petroleum and petrochemical analysis. The JMS-T200GC AccuTOF™ GC-plus is a superior gas chromatograph - high-resolution time-of-flight mass spectrometer (GC-HRTOFMS) system that simultaneously accomplishes high mass-resolution analysis, high mass accuracy, and high-speed data acquisition, satisfying all your needs for petroleum and petrochemical analyses.

JMS-S3000 SpiralTOF™-plus Product Brochure

The JMS-S3000 SpiralTOF™-plus Ultra-High Mass Resolution MALDI-TOFMS System time-of-flight optics design utilizes a figure-eight ion trajectory to allow a 17m flight path to fit in an extremely small console. This exceptionally long flight path results in an ultrahigh resolving power of >75,000 and sub-ppm mass accuracy. The versatile SpiralTOF is an essential research tool for your state-of-the-art MS analyses of functional synthetic polymers, material science and biomolecules.

GC-MS Analysis of Cocoa Butter Triglycerides

Cocoa butter is the edible fat extracted from cocoa beans that is used in the manufacture of chocolate. Cocoa Butter Equivalents (CBE) are a substance derived from palm oil and shea butter that are used as a substitute for cocoa butter in chocolate. European regulations govern the labeling of chocolate as containing CBE less than 5%. US regulations require that Cocoa Butter Equivalents be specifically labeled with wording such as “chocolate flavored” coating. Analysis of the triglyceride content of chocolate is a quality control measure. Analysis of a standard sample of cocoa butter triglycerides is presented here as an example of the use of the JEOL Q1500 quadrupole GC-MS system for the detection of lipids separated by using a high-temperature GC column (Restek Rtx-65TG).

Integrated Analysis of Fatty Acid Methyl Esters using msFineAnalysis v2 - MSTips 301

Fatty acid methyl esters (FAMEs) are crucial for determining the fat content in food. Being environmentally friendly, they are also increasingly used as bio-diesel fuels. Many of the FAMEs are unsaturated with double bonds in the alkyl chains. As the number of double bonds increases (more unsaturation), the EI measurements tend to lack molecular ions. In this work, we measured a standard sample containing multiple FAMEs using EI and FI to detect their molecular ions. The resulting data was further examined by using msFineAnalysis to produce an integrated report for these compounds in which the library database search was combined with the molecular ion exact mass analysis to produce a qualitative identification of these compounds.

Integrated Analysis of Coffee Aroma by using a Headspace GC-HRMS - MSTips 280

Electron ionization (EI) is a hard ionization method that is commonly used with gas chromatography mass spectrometry (GC-MS). The mass spectral fragmentation patterns produced by EI are used for library database searches to identify compounds. Conversely, soft ionization methods like field ionization (FI) tend to produce clear molecular ions with minimal fragmentation. When high-resolution MS is used with these ionization techniques, the accurate masses for the fragment ions produced by EI and the molecular ions produced by soft ionization provide an additional dimension of information for the analytes. Combining the exact mass information with the results of conventional library search can enhance the accuracy of identification compared to the use of library search alone.  In this work, we introduce the msFineAnalysis software and use it to automatically combine data acquired by GC/EI and GC/soft ionization for the qualitative analysis of coffee headspace.

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Corona - Glow Discharge (DART Ion Source)

February 22, 2020
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