High resolution gas chromatographic/real-time high resolution mass spectrometric identification of organic acids in human urine

1979 ◽  
Vol 51 (8) ◽  
pp. 1275-1285 ◽  
Author(s):  
Sydell. Lewis ◽  
C. N. Kenyon ◽  
Juerg. Meili ◽  
A. L. Burlingame
Keyword(s):  
High Resolution ◽  
Organic Acids ◽  
Real Time ◽  
Human Urine ◽  
Mass Spectrometric ◽  
Spectrometric Identification ◽  
High Resolution Mass ◽  
Mass Spectrometric Identification ◽  
Resolution Mass

scholarly journals Gas chromatographic quadrupole time-of-flight full scan high resolution mass spectrometric screening of human urine in antidoping analysis

2017 ◽  
Vol 1063 ◽  
pp. 74-83 ◽  
Author(s):  
Wadha Abushareeda ◽  
Emmanouil Lyris ◽  
Suhail Kraiem ◽  
Aisha Al Wahaibi ◽  
Sameera Alyazidi ◽  
...  
Keyword(s):  
High Resolution ◽  
Human Urine ◽  
Time Of Flight ◽  
Mass Spectrometric ◽  
High Resolution Mass ◽  
Full Scan ◽  
Antidoping Analysis ◽  
Resolution Mass

scholarly journals The structure of novel C35 pentacyclic terpenes from Acetobacter xylinum

1973 ◽  
Vol 135 (1) ◽  
pp. 133-143 ◽  
Author(s):  
Hans J. Förster ◽  
Klaus Biemann ◽  
W. Geoffrey Haigh ◽  
Neil H. Tattrie ◽  
J. Ross Colvin
Keyword(s):  
High Resolution ◽  
High Resolution Mass Spectrometry ◽  
Carbon Chain ◽  
Acetobacter Xylinum ◽  
Mass Spectrometric ◽  
Hydroxyl Groups ◽  
Mass Spectral Data ◽  
Mass Spectral ◽  
High Resolution Mass ◽  
Resolution Mass

A novel C35 terpene and its monounsaturated analogue were isolated from cultures of Acetobacter xylinum, together with traces of their C36 homologues. These substances were found to be hopane derivatives substituted by a five-carbon chain bearing four vicinal hydroxyl groups. For the parent hydrocarbon the term bacteriohopane is proposed. The elucidation of the structures utilized high-resolution mass spectrometry of the terpenes, degradation to C32 hydrocarbons and detailed mass-spectrometric comparison of these with C32 hydrocarbons synthesized from known pentacyclic triterpenes. High-resolution mass-spectral data of the terpenes are presented. N.m.r. data are in agreement with the proposed structures, which are further supported by the isolation from the same organism of 22-hydroxyhopane and derivative hopene(s).

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