The Benefits of Accurate Mass Measurements in GC/MS and GC×GC/MS Environmental Studies
Dr. Albert Lebedev
Monday, June 29, 2015
Tweet
Transcript
Embed
Email
Bookmark
<<
<
>
>>
Tweet
Facebook
Email
Chapters
Introduction
General statements
LECO PEGASUS GC-HRT
Mode of FFP™ Analyzer Operation
Targeted analysis
Integral mass spectrum of snow sample at m/z 252
Integral mass spectrum of snow sample at m/z 276
Integral mass spectrum of snow sample at m/z 180
Extracted ion current plot based on the characteristic mass for naphthalenedicarboxylic acid vs the width of mass window
Non targeted analysis
3-Penten-2-one, 4-methyl-
Dimethyldibenzothiophene
Cyclopropane, 1-(4-methoxyphenyl)-2-phenyl-
Manual Interpretation
Detection of dichloronitromethane
Deconvoluted mass spectrum of a compound with RT 771.4s in PL2 snow sample and Ion chromatograms for ions with m/z 133.065 and 151.022
Official US EPA GC/HRMS methods
The benefits of accurate mass measurements for the environmental analysis
Identification points earned in MS detection
GCxGC/MS
GC-GC-MS chromatogram of Solzavodsk soil sample (hydrocarbon fraction)
Three-dimensional chromatogram of the diesel oil sample
Three-dimensional chromatogram of the diesel oil sample after its aquatic chlorination with molecular chlorine
Two-dimensional mass-chromatogram (m/z 140, 154, 168, 182, 196) of the diesel oil sample after its aquatic chlorination with molecular chlorine
Two-dimensional mass-chromatogram (m/z 176, 190, 204, 218) of the diesel oil sample after its aquatic chlorination with molecular chlorine
Three-dimensional TIC chromatogram
Raw diesel-zoomed
Fuel diesel-zoomed
Thank you
No transcript for this webinar
More Information
Contact Us