Semiautomated multisample analysis of amniotic fluid lipids by high-performance thin-layer chromatography—reflectance spectrodensitometry

Author(s):  
Juan G. Alvarez ◽  
Jack Ludmir
1980 ◽  
Vol 26 (3) ◽  
pp. 403-405
Author(s):  
M D Kolins ◽  
E Epstein ◽  
W H Civin ◽  
S Weiner

Abstract We describe a one-dimensional thin-layer chromatographic system for separation of amniotic fluid phosphatidylcholine, sphingomyelin, phosphatidylglycerol, phosphatidylinositol, phosphatidylserine, and phosphatidylethanolamine in amniotic fluid. We utilize short-bed continuous development and "high performance" thin-layer chromatography. Phospholipids are detected with an antimony molybdate staining reagent and quantitated by transmittance densitometry. This system is more sensitive to changes in lecithin/sphingomyelin ratios than are planimetric evaluations.


1990 ◽  
Vol 36 (5) ◽  
pp. 728-731 ◽  
Author(s):  
J R Mackenzie ◽  
M Truesdale

Abstract A radial "high-performance" thin-layer chromatographic (HPTLC) method is described by which the percentages and ratios of phosphatidylinositol, sphingomyelin, lecithin, phosphatidylethanolamine, phosphatidylglycerol, and dimethyl phosphatidylethanolamine may be determined simultaneously. An additional method for radial HPTLC determination of saturated phosphatidylcholine is described. We report results of application of these methods to greater than 2000 specimens of amniotic fluid from both diabetic and nondiabetic cases.


1980 ◽  
Vol 26 (3) ◽  
pp. 403-405 ◽  
Author(s):  
M D Kolins ◽  
E Epstein ◽  
W H Civin ◽  
S Weiner

Abstract We describe a one-dimensional thin-layer chromatographic system for separation of amniotic fluid phosphatidylcholine, sphingomyelin, phosphatidylglycerol, phosphatidylinositol, phosphatidylserine, and phosphatidylethanolamine in amniotic fluid. We utilize short-bed continuous development and "high performance" thin-layer chromatography. Phospholipids are detected with an antimony molybdate staining reagent and quantitated by transmittance densitometry. This system is more sensitive to changes in lecithin/sphingomyelin ratios than are planimetric evaluations.


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