Modern Mass Spectrometry. Topics in Current Chemistry, Volume 225 Edited by Christoph A. Schalley (University of Bonn). Springer-Verlag:  Berlin, Heidelberg, New York. 2003. xii + 318 pp. $269.00. ISBN 3-540-00098-4.

2004 ◽  
Vol 126 (5) ◽  
pp. 1587-1588 ◽  
Author(s):  
Jennifer S. Brodbelt
Keyword(s):  
Mass Spectrometry ◽  
New York ◽  
Modern Mass

scholarly journals Outbreak of botulism type A in dairy cows detected by MALDI-TOF mass spectrometry

2020 ◽  
Vol 32 (5) ◽  
pp. 722-726
Author(s):  
Elisha A. Frye ◽  
Christina Egan ◽  
Michael J. Perry ◽  
Esther E. Crouch ◽  
Kyle E. Burbank ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
New York ◽  
New York State ◽  
Clinical Signs ◽  
Type A ◽  
Maldi Tof Ms ◽  
Maldi Tof ◽  
Botulinum Type ◽  
Type C ◽  
Tof Ms

Twenty-eight lactating dairy cattle in New York State were exposed to botulism toxin; 12 died and 16 recovered but never returned to full productivity. Pieces of a raccoon carcass were found in the total mixed ration on the first day of the outbreak. Clinical signs included anorexia, decreased milk production, decreased tongue tone, profound weakness, and recumbency. Clostridium botulinum type A (BoNT/A) was detected in rumen contents from 2 deceased cows via matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS). In addition, C. botulinum type C was cultured from the liver of a third cow, and C. botulinum neurotoxin-producing type C gene ( bont/C) was detected via real-time PCR. On postmortem examination, 4 cows had findings suggestive of toxic myopathy, but the cause and significance of these lesions is unknown given that botulism is typically not associated with gross or histologic lesions. This outbreak of BoNT/A in cattle in North America was diagnosed via MALDI-TOF MS, a rapid and sensitive modality for detection of botulinum preformed neurotoxin.

scholarly journals Gas-Phase Fragmentation of Cyclic Oligosaccharides in Tandem Mass Spectrometry

Molecules ◽  
2019 ◽  
Vol 24 (12) ◽  
pp. 2226 ◽  
Author(s):  
Alexander O. Chizhov ◽  
Yury E. Tsvetkov ◽  
Nikolay E. Nifantiev
Keyword(s):  
Mass Spectrometry ◽  
Tandem Mass Spectrometry ◽  
Gas Phase ◽  
Structure Elucidation ◽  
Mass Spectra ◽  
Food Additives ◽  
Tandem Mass ◽  
Modern Mass ◽  
Gas Phase Fragmentation ◽  
Different Sources

Modern mass spectrometry, including electrospray and MALDI, is applied for analysis and structure elucidation of carbohydrates. Cyclic oligosaccharides isolated from different sources (bacteria and plants) have been known for decades and some of them (cyclodextrins and their derivatives) are widely used in drug design, as food additives, in the construction of nanomaterials, etc. The peculiarities of the first- and second-order mass spectra of cyclic oligosaccharides (natural, synthetic and their derivatives and modifications: cyclodextrins, cycloglucans, cyclofructans, cyclooligoglucosamines, etc.) are discussed in this minireview.

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