Analytical Instrument Documents

JEOL has developed a filament for low-vacuum that utilizes a new wire with enhanced oxidation resistance to enable stable measurement by the EI method in an oxygen atmosphere. In this study, the gases evolved from polystyrene at various oxygen concentrations were measured by TG/DTA-MS using a filament for low-vacuum.

In this work, we examine the effects of nitrogen carrier gas on the performance of our GC-TOFMS for high resolution, accurate mass analysis.

We have attempted a rapid analysis of Py-GC/MS method using JMS-Q1500GC by optimizing Py and GC oven conditions, and achieved a cycle time of 14.75 min per measurement. Here, we report the results.

In this application note, we identified the additives and their distribution within a commercially available molded polymer by using GCxGC/HRTOFMS with pyrolysis (PY/GCxGC/HRTOFMS).

In this study, pyrolysis (Py)/GCxGC/HR-TOFMS system was applied to investigate the pyrolysis products of Vinylpyridine and Divinylbenzene copolymer as the ion exchange resin sample.

In this study, pyrolysis(Py)/GCxGC/HR-TOFMS system was applied to investigate the pyrolysis products of Ethylene-propylene–diene rubber (EPDM).

This application note shows that FI is a suitable technique to determine the molecular weight of compounds which are not producing molecular ions in EI or CI.

We have compared FD and desorption electron ionization (DEI), which are both direct sample introduction methods, for the analysis of an organic electroluminescence material with many aromatic rings.

This application note shows the result of a commercial lube oil by GC/FI and the elemental composition determination by FI.

This application note shows the results of the qualitative analysis for sulfur-containing substances in diesel oil by GC x GC-TOFMS.