scholarly journals Tandem MS and C60 SIMS for the identification and characterization of lipids

2014 ◽  
Vol 46 (S1) ◽  
pp. 118-122 ◽  
Author(s):  
Anita Durairaj ◽  
Nicholas Winograd
Keyword(s):  
Tandem Ms ◽  
Identification And Characterization

scholarly journals Isolation and characterization of protoporphyrin glycoconjugates from rat Harderian gland by HPLC, capillary electrophoresis and HPLC/electrospray ionization MS

2000 ◽  
Vol 347 (3) ◽  
pp. 757-761 ◽  
Author(s):  
Chang Kee LIM ◽  
M. Aaqib RAZZAQUE ◽  
Jinli LUO ◽  
Peter B. FARMER
Keyword(s):  
Capillary Electrophoresis ◽  
Electrospray Ionization ◽  
Harderian Gland ◽  
Tandem Ms ◽  
Isolation And Characterization ◽  
Harderian Glands ◽  
On Line ◽  
Identification And Characterization

It has been widely reported that the Harderian gland, present in most vertebrates, accumulates high levels of porphyrins, particularly protoporphyrin. The present study describes the extraction, identification and characterization of a group of hitherto unreported protoporphyrin glycoconjugates in the rat Harderian gland using HPLC, capillary electrophoresis, on-line HPLC/electrospray ionization MS and tandem MS. The major glycoconjugate was identified as protoporphyrin-1-O-acyl β-xyloside with a smaller amount of protoporphyrin-1-O-acyl β-glucoside also detected. In the Harderian glands studied, 50-70% of the porphyrins present were in the form of protoporphyrin glycoconjugates. This is the first reported occurrence of glycoconjugates of porphyrins in Nature and suggests that previous studies have wrongly identified the major porphyrin in the Harderian gland as the unconjugated protoporphyrin.

Identification and characterization of aldose reductase in cultured rat mesangial cells

Diabetes ◽  
1992 ◽  
Vol 41 (9) ◽  
pp. 1165-1171 ◽  
Author(s):  
R. Kikkawa ◽  
K. Umemura ◽  
M. Haneda ◽  
N. Kajiwara ◽  
S. Maeda ◽  
...  
Keyword(s):  
Aldose Reductase ◽  
Mesangial Cells ◽  
Identification And Characterization
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