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Katherine Noble
University of Utah
Mass spectrometryStructural isomerOdontomachus bauriKovats retention indexBiology
3Publications
2H-index
18Citations
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Publications 3
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#1Sihang Xu (Stevens Institute of Technology)H-Index: 2
#2Ramu Errabelli (Stevens Institute of Technology)H-Index: 2
Last. Athula B. Attygalle (Stevens Institute of Technology)H-Index: 32
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Abstract Pyrazines are an important group of natural products widely used as food additives and fragrants. Gas chromatography-mass spectrometry (GC MS) is the most widely applied analytical technique for characterization of alkylpyrazines. However, mass spectra of many positional isomers of alkylpyrazines are very similar. Consequently, an unambiguous identification of each positional isomer by spectral interpretation or database search protocols is practically unfeasible. In fact, there are man...
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#1Sihang Xu (Stevens Institute of Technology)H-Index: 2
#2Ramu Errabeli (Stevens Institute of Technology)H-Index: 1
Last. Athula B. Attygalle (Stevens Institute of Technology)H-Index: 32
view all 5 authors...
Ponerine ants are known to contain mixtures of pyrazines in their mandibular glands. We analyzed the mandibular gland contents of four ponerine species (Odontomachus chelifer, O. erythrocephalus, O. ruginodis, and O. bauri) by gas chromatography coupled with mass spectrometry, and found that each species contains specific mixtures of trisubstituted alkylpyrazines among other volatiles. Attempts to identify alkylpyrazines solely by mass spectral interpretation is unrealistic because spectra of po...
2 CitationsSource
#1Bernarda Calla (UIUC: University of Illinois at Urbana–Champaign)H-Index: 11
#2Katherine Noble (UofU: University of Utah)H-Index: 2
Last. May R. Berenbaum (UIUC: University of Illinois at Urbana–Champaign)H-Index: 69
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16 CitationsSource
1