PRODUCTS

Analytical Instrument Documents

JEOL Resources

rss

Documentation in support of your JEOL product.

New Generation LC-TOF/MS “AccuTOFTM”

Introduction

It has been a decade since Dodonov and his colleagues [1] first announced the electrospray ionization time-of-flight mass spectrometer (ESI-TOF MS). Their initial findings have been enhanced by Standing and others [2,][ 3], and it has been recently reported that a large TOF MS system achieved a mass resolution exceeding 10,000 [4].

Encouraged by the results acquired by Dodonov and Standing, some of the MS manufactures have produced bench top ESI-TOF MS systems. However, most of these commercial models have a narrow dynamic range and are unfit to quantitative analysis because they use a TDC (Time-to-Digital Converter) as a data acquisition system. Their applications were mainly in qualitative analysis with exact mass measurement, and are limited in such fields as environmental studies and chemical dynamics that require only qualitative analysis. Because of detector saturation, these systems only show good mass acuracy when operated within a limited analyte concentration range.

Attached Files
Showing 0 Comment


Comments are closed.

Other Resources

Image Gallery
  • View a selection of NMR and MS spectra
  • Walkup NMR
  • See how the Delta NMR software allows users to just "walk up" and start NMR experiments
  • Mass Spec Reference Data
  • View our page of useful molecular references for Mass Spec
  • Tutorials (Mass Spec)
  • Documents on the basics of mass spectrometry
  • Delta NMR software Tutorials
  • Videos on how to use the Delta NMR software
  • No-D NMR
  • Description of No-D NMR and how it can be used to eliminate the need for deuterated solvents
  • Non Uniform Sampling (NUS)
  • Description of how NUS is used to greatly reduce the time needed for running NMR experiments
  • NMR Basics
  • Overview of the Basics of NMR Theory
  • NMR Magnet Destruction
  • See our presentation of the slicing open of a JEOL Delta-GSX 270 MHz NMR Magnet
  • Media

    Corona - Glow Discharge (DART Ion Source)

    January 28, 2022
    2435
      JEOL USA, Inc.
      11 Dearborn Road
      Peabody, MA 01960
      © Copyright 2022 by JEOL USA, Inc.