JEOL Resources

JEOL GC-MS Soft Ionization Mass Spectra Collection

Tue, 30 May 2023 14:36:58 GMT

A comparison of electron ionization and soft ionization methods for GC-MS applications

Chemical Ionization (CI)
Photoionization (PI)
Field Ionization (FI)

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msFineAnalysis AI Brochure

Tue, 21 Feb 2023 14:17:45 GMT

msFineAnalysis AI offers a new structure analysis tool for unknowns that is specifically designed for the JEOL JMST2000GC “AccuTOF™ GC-Alpha.” This next generation software adds this structure analysis capability to improve the overall automatic qualitative analysis functionality that was already available with our previous generation msFineAnalysis. The new “integrated analysis” combines GC/EI high resolution data, GC/soft ionization high resolution data, and “structure analysis” using two AIs (Main AI, Support AI). These advanced AI technologies allow msFineAnalysis AI to provide a unique automatic structure analysis capability that was not previously available for GC-MS qualitative analysis.

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Examining detection sensitivity of EI-FI and PI ion sources using nitrogen as a GC carrier gas MSTips 299

Tue, 17 May 2022 11:45:15 GMT

Abstract

The global helium shortage is a very serious issue that is affecting a variety of scientific research organizations that utilize this gas for their work. In particular, gas chromatography-mass spectrometry (GC-MS) is a widely used analytical technique that traditionally uses helium as the GC carrier gas. Consequently, it has become critical to identify other carrier gases for GC-MS in order to minimize the effects of the helium shortage. Previously, we changed the GC-MS carrier gas from helium (He) to nitrogen (N2) to determine how this affects sensitivity when using the dedicated EI ion source. The results showed that the detection sensitivity for N2 as the GC carrier gas was 1/18 of the level when compared to He. In this work, we compare sensitivity levels when using the combination EI/FI and EI/PI ion sources when He and N2 are used as the GC carrier gas.

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AccuTOF GC Materials and Chemistry Applications Notebook

Thu, 11 Mar 2021 09:59:16 GMT

Various applications on the topics of Materials and Chemistry for the AccuTOF GC Series

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AccuTOF GC Environment, Food, Flavor, & Fragrance Applications Notebook

Thu, 11 Mar 2021 09:52:53 GMT

Publication containing various applications pertaining to Environment, Food, Flavor, & Fragrance.

August 2024 Edition.

Food, Flavor & Fragrance
GC/MS (12)
GCxGC/MS (2)

Environment & Food Safety
GC/MS (6)
GCxGC/MS (2)

Details of hardware and software (11)

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JMS-T2000GC AccuTOF™ GC-Alpha Mass Spectrometer

Thu, 18 Feb 2021 09:55:04 GMT

Pursuing the ultimate in performance and functionality

Alpha - The New Beginning. The JMS-T2000GC AccuTOF™ GC-Alpha Time-of-Flight Mass Spectrometer takes you to a new world of mass spectrometry, the ultimate GC-MS with superior performance and ease of operation.

Download our brochure below.

AccuTOF GC Petroleum & Petrochemicals Applications Notebook

Tue, 08 Sep 2020 14:26:57 GMT

The JMS-T2000GC AccuTOF™ GC-Alpha 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.

Please download the brochure below to learn more.

msFineAnalysis Series Brochure

Fri, 12 Jun 2020 10:42:30 GMT

The msFineAnalysis series is an automatic qualitative analysis software that enables "integrated analysis" by combining the library database (DB) search using EI data and molecular weight confirmation using soft ionization data.

msFineAnalysis iQ is designed for low resolution integer mass data analysis, and msFineAnalysis is designed for high resolution exact mass data analysis. Each package improves analysis accuracy, shortens work hours, and improves work efficiency.

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Features and Applications of Newly-Developed GC-TOFMS “The AccuTOF GC”

Fri, 06 Mar 2020 06:43:39 GMT

By the way, “fast GC”, one of the GC methods, has become to attract attention recently. The fast GC method can shorten the analysis time remarkably while keeping a good separation ability equal to the conventional GC methods, by using a narrow and short column of about 0.1 mm inside diameter and 10 m long. The fast GC method, adopted in a GC-MS system, has the ability to improve the system throughput. However, it requires a fast spectrum- acquisition speed to the mass spectrometer, because the chromatograph peaks are narrower in time than a conventional GC. TOFMS only has the ability to satisfy the demand for fast spectrum-acquisition speed at the present time, but the existing GC-TOFMS systems are not satisfactory by either of the following reasons: it can follow the fast speed of the fast GC, but its mass resolution is too low to measure accurate mass, or, on the inverse, it has a mass resolution high enough to measure accurate masses but cannot follow the fast speed of the fast GC.

Introduction of latest GC/HR-TOFMS system: JMS-T200GC AccuTOF GCx - High Sensitivity Measurement

Thu, 05 Mar 2020 08:07:16 GMT

JEOL has recently announced a 4th generation GC/HR-TOFMS system, the JMS-T200GC AccuTOF-GCx, in 2015. The AccuTOF-GCx offers high sensitivity, high mass resolving power, high mass accuracy, and a wide dynamic range in combination with high-speed data acquisition. In this application note, we show the high sensitivity measurement capability using this latest GC/HR-TOFMS system.