Analytical Instrument Documents

Structural Analysis of Oxidized Triolein
Structural Analysis of Oxidized Triolein

In this work, we report the structural analysis of oxidized triglycerides by HE-CID using the SpiralTOF-TOF.

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Analysis of Phosphopeptide using TOF-TOF
Analysis of Phosphopeptide using TOF-TOF

In this work, we measure a monophosphopeptide (FQ pS EEQQQTEDELQDK) that was obtained from the tryptic digestion of β-casein (Bovine) using the TOF-TOF option that is available for the JEOL SpiralTOF™ system.

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Analysis of the Natural Organic Compound SAAF Using the TOF-TOF Option
Analysis of the Natural Organic Compound SAAF Using the TOF-TOF Option

In this work, we analyzed the SAAF from a ciona intestinalis by using a JMS-S3000 SpiralTOF™ equipped with the optional TOF-TOF analyzer to generate a high energy CID product ion spectrum for this compound.

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SpiralTOF-TOF Analysis of Bovine Serum Albumin
SpiralTOF-TOF Analysis of Bovine Serum Albumin

In a previous application note, we reported the analysis of bovine serum albumin (BSA) by Spiral and Linear modes. In this work, we show the analytical result for BSA by using the JMS-S3000 "SpiralTOF" with the TOF-TOF option.

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Differential analysis of UV degradaed polyethylene terephthalate using JMS-S3000 “SpiralTOF™-plus2.0” and “msRepeatFinder”
Differential analysis of UV degradaed polyethylene terephthalate using JMS-S3000 “SpiralTOF™-plus2.0” and “msRepeatFinder”

In this application note, we report an application of the differential analysis function implemented in msRepeatFinder to the end-group analysis of polyethylene terephthalate (PET), which has been degraded by UV irradiation.

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EO/PO composition ratio analysis of EO-PO copolymer using JMS-S3000
EO/PO composition ratio analysis of EO-PO copolymer using JMS-S3000 "SpiralTOF™-plus3.0" and "msRepeatFinder"

In this application note, the EO/PO composition ratio using MALDI-TOFMS were investigated for the EO-PO copolymers with six different molecular weight distributions and EO/PO compositions.

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Analysis of multicomponent polyesters using JMS-S3000 “SpiralTOF™-plus3.0” and Kendrick Mass Defect (KMD) analysis
Analysis of multicomponent polyesters using JMS-S3000 “SpiralTOF™-plus3.0” and Kendrick Mass Defect (KMD) analysis

The Kendrick Mass Defect (KMD) method has made it possible to easily visualize polymer series contained in complex high mass-resolution mass spectra. Here, we introduce examples of analyzing a mixture of two types of binary polyesters and a quaternary polyester.

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Combining JMS-S3000
Combining JMS-S3000 "SpiralTOF™-plus3.0" and size exclusion chromatography to analyze the end groups of high dispersity synthetic polymers and visualizing changes in the end groups

In this report, we performed an end-group analysis of polymer samples with a high polydispersity and molecular weight of less than 50,000 by combining SEC and high-performance MALDI-TOFMS. In particular, we report on (i) improvement of the efficiency of fractionation by SEC and pretreatment for MALDI-TOFMS measurement, (ii) improvement of visualization of end group changes in mass spectra of SEC fractionated samples with reduced polydispersity, (iii) End group analysis in the high molecular weight region (molecular weight 10,000 to 20,000).

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Mass imaging of strawberry using the JMS-S3000 “SpiralTOF™-plus3.0” and transfer plate Poropare™
Mass imaging of strawberry using the JMS-S3000 “SpiralTOF™-plus3.0” and transfer plate Poropare™

Using a Poropare™, we investigated MSI measurement of components inside strawberries, which are generally challenging to make tissue sections for mass imaging. Although the transfer plate has a large uneven structure due to the transfer function, it was found that by combining it with the SpiralTOF™-plus3.0, which has a long flight distance, mass imaging with high resolution and high mass accuracy is possible even in the low molecular weight region.

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High-Resolution MALDI-TOFMS Measurement and KMD Analysis for Visualization of Polymers Fractionated by Reversed-Phase LC
High-Resolution MALDI-TOFMS Measurement and KMD Analysis for Visualization of Polymers Fractionated by Reversed-Phase LC

In this study, we investigated the visualization of information obtained from high-resolution MALDI-TOFMS measurements of polymer fractions collected via reversed-phase LC, using Kendrick Mass Defect (KMD) plots. The analysis focused on the following two aspects: (1) Comparison of KMD plots before and after fractionation, and (2) Effect of different fractionation intervals (30 second / 15 second) on the visualization in KMD plots.

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