James Little - Mass Spec Interpretation Services
James Little - Mass Spec Interpretation Services

My name is James Little and my private consulting company is Mass Spec Interpretation Services. I contract for NIST, Wiley, and Sapec. Previously, I was a Research Fellow specializing in mass spectrometry at Eastman Chemical Company in Kingsport, TN and retired in early 2016 after >37 years of service. For 2017-2019, I did NMR as a limited service employee specializing in end group determinations for Eastman.

My main interest is the identification of organic compounds by mass spectrometry in organic mixtures. All the technical information on my web page was approved as technical session handouts, conference presentations, workshops, journal publications, courses, etc. for distribution outside Eastman. Other postings on this site are my own and do not necessarily represent Eastman’s positions, strategies or opinions. I also include a “little” information about my sailing experiences.

In 2017, I purchased a used Model S85 Tesla and starting to participate in electric vehicle events. In addition, I am a member of the choir at St. Paul’s Episcopal Church, play competitive duplicate bridge, and race sailboats on Watauga Lake.

 

News

MS Interpreter for Accurate Mass Data: Correlating Structure to m/z
Article | Academy

MS Interpreter for Accurate Mass Data: Correlating Structure to m/z

Learn how NIST MS Interpreter connects accurate-mass MS/MS fragments with molecular structure, enabling substructure assignment, ppm evaluation, candidate modification, and improved unknown identification.
Theoretical and Practical Understanding of XICs (Extracted Ion Chromatograms)
Article | Academy

Theoretical and Practical Understanding of XICs (Extracted Ion Chromatograms)

Learn how extracted ion chromatograms support LC–MS/MS identification, quantitation, isotope validation, and troubleshooting in the NIST XIC Analyzer workflow.
 

Wrote about us

News from LabRulezGCMS Library - Week 43, 2024
Article | Application

News from LabRulezGCMS Library - Week 43, 2024

This week we bring you applications by Agilent Technologies, Thermo Fisher Scientific, and Shimadzu and a presentation by James Little - Mass Spec Interpretation Services!
News from LabRulezLCMS Library - Week 42, 2024
Article | Application

News from LabRulezLCMS Library - Week 42, 2024

We bring you posters, presentations, applications, and other documents by Thermo Fisher Scientific, Agilent Technologies, Shimadzu, Waters Corporation, and James Little Mass Spec Interpretation Services!
 

Library

Open paper Using NIST MS Search with Agilent OpenLab Software for Unknown Identifications

Using NIST MS Search with Agilent OpenLab Software for Unknown Identifications

Instrumentation
Software, LC/MS, GC/MSD
Manufacturer
Agilent Technologies
Industries
Open paper Changes in Tandem (MS/MS) NIST23 Search Program (V3.0)

Changes in Tandem (MS/MS) NIST23 Search Program (V3.0)

Instrumentation
Software
Manufacturer
Industries
Open paper NIST/EPA/NIH EI-MS LIBRARY (2023 Release)

NIST/EPA/NIH EI-MS LIBRARY (2023 Release)

Instrumentation
Software
Manufacturer
Wiley
Industries
Open paper NIST Tandem Mass Spectral Library (2023 Release)

NIST Tandem Mass Spectral Library (2023 Release)

Instrumentation
Software
Manufacturer
Wiley
Industries