scholarly journals Semi-quantitative and structural metabolic phenotyping by direct infusion ion trap mass spectrometry and its application in genetical metabolomics

2009 ◽  
Vol 23 (15) ◽  
pp. 2253-2263 ◽  
Author(s):  
Albert Koulman ◽  
Mingshu Cao ◽  
Marty Faville ◽  
Geoff Lane ◽  
Wade Mace ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Ion Trap ◽  
Ion Trap Mass Spectrometry ◽  
Direct Infusion ◽  
Metabolic Phenotyping

High-throughput direct-infusion ion trap mass spectrometry: a new method for metabolomics

2007 ◽  
Vol 21 (3) ◽  
pp. 421-428 ◽  
Author(s):  
Albert Koulman ◽  
Brian A. Tapper ◽  
Karl Fraser ◽  
Mingshu Cao ◽  
Geoffrey A. Lane ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
High Throughput ◽  
Ion Trap ◽  
New Method ◽  
Ion Trap Mass Spectrometry ◽  
Direct Infusion

TRIGLYCERIDE COMPOSITION OF SIXTEEN STRAINS OF MARINE DIATOM

2013 ◽  
Vol 5 (1) ◽  
Author(s):  
Lily M.G. Panggabean ◽  
Abdullah Rasyid ◽  
Zarrah Duniani ◽  
Yana Meliana ◽  
Indah Kurniasih
Keyword(s):  
Mass Spectrometry ◽  
Fatty Acid ◽  
Double Bond ◽  
Unsaturated Fatty Acid ◽  
Ion Trap ◽  
Carbon Chain ◽  
Highly Unsaturated Fatty Acid ◽  
Marine Diatom ◽  
Ion Trap Mass Spectrometry ◽  
Spectra Analysis

Trigliceride or triacylglicerol (TAG) composition in crude oil of sixteen strain of marine diatom has been detected by spectra analyses on an Electrospray - Ion Trap – Mass Spectrometry (ESI-IT-MS) HCT Bruker-Daltonic GmbH instrument with AgNO3 used as coordination ionization agent. Biomass samples of each microalga strain were taken from early and late stationary cultures in f/2 enriched seawater and algal oils were extracted according to Bligh and Dyer. Results from spectra analysis showed that P-Pt-P (C16:0-C16:1-C16:0) were distinguished in TAG from diatom strains Chaetoceros sp.1, Chaetoceros sp.2, Thalasiossira sp.1, Thalasiossira sp.2, Thalasiossira sp.3, Navicula sp. 1, Navicula sp. 2, Navicula sp. 3, Navicula sp. 4, Nitzschia sp. 2 and Amphora sp. In contrast, TAGs in Melosira sp. included P-P-P (C16:0-C16:0-C16:0) and P-P-O (C16:0-C16:0-C18:1) were identified. TAGs from Chaetoceros sp. were the most varies among samples, i.e. P-Pt-P (C16:0-C16:1-C16:0), A-P-M (C20:4-C16:0-C14:0), P-Pt-Lt (C16:0-C16:1-C18:3), P-Pt-A (C16:0-C16:1-C20:4), D-P-P (C22:6-C16:0-C16:0), A-Ln-P (C20:4-C18:2-C16:0). Various TAGs were also detected in Nitzschia sp.2, i.e. P-Pt-M (C16:0-C16:1-C14:0), P-Pt-P (C16:0-C16:1-C16:0), P-Pt-S (C16:0-C16:1-C18:0), P-Pt-A (C16:0-C16:1-C20:4). TAGs composition in Skeletonema strains that similar to those in Nitzschia sp.1 has longer carbon, i.e. P-P-O (C16:0-C16:0-C18:1), P-O-O (C16:0-C18:1-C18:1) and O-O-O (C18:1-C18:1-C18:1). TAGs with longer carbon chain and more double bond including highly unsaturated fatty acid C20:4 were increased with culture age in diatoms Chaetoceros sp.1, Chaetoceros sp.2, Thalasiossira sp.2, Navicula sp.1 and Nitzschia sp. 2.Keywords: diatom, TAG, ESI-IT-MS, f/2, early and late stationary

Electron spray ion trap mass spectrometry of isoflavones and isoflavone aglycones of Semen Sojae Praeparatum

2013 ◽  
Vol 33 (10) ◽  
pp. 1108-1115
Author(s):  
Gao FANG ◽  
Peng ZHANG ◽  
Xiao-lan YE ◽  
Xia ZHU ◽  
Xin ZHAO ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Ion Trap ◽  
Ion Trap Mass Spectrometry

Oligonucleotide sequencing using guanine-specific methylation and electrospray ionization ion trap mass spectrometry

1999 ◽  
Vol 34 (4) ◽  
pp. 276-280 ◽  
Author(s):  
Lisa A. Marzilli ◽  
John P. Barry ◽  
Todd Sells ◽  
Say-Jong Law ◽  
Paul Vouros ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Electrospray Ionization ◽  
Ion Trap ◽  
Ion Trap Mass Spectrometry
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