Purification and analysis of versiconal hemiacetal acetate and versicolorin A using low-pressure liquid chromatography and high-performance liquid chromatography

1989 ◽  
Vol 37 (3) ◽  
pp. 676-679 ◽  
Author(s):  
Julia A. Billington ◽  
Dennis P. H. Hsieh
Keyword(s):  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
High Performance ◽  
Low Pressure ◽  
Versicolorin A ◽  
Versiconal Hemiacetal Acetate

Fractionation of organic extracts of environmental water samples by low pressure column chromatography and high performance liquid chromatography techniques

1985 ◽  
Vol 63 (8) ◽  
pp. 2110-2118 ◽  
Author(s):  
R. A. Moore ◽  
F. W. Karasek
Keyword(s):  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
Column Chromatography ◽  
Environmental Samples ◽  
High Performance ◽  
Polyaromatic Hydrocarbons ◽  
Phthalate Esters ◽  
Environmental Water ◽  
Low Pressure ◽  
Chromatographic Peaks

Prefractionation procedures based on high performance liquid chromatography (hplc) and low pressure column chromatography (lpcc) were developed and applied to the separation of components in extracts of environmental samples. Effective fractionation was obtained using solvent systems based on hexane, carbon tetrachloride, dichloromethane, and ether for elution on lpcc Florisil and hplc silica columns. This facilitated the identification of over thirty compounds consisting mainly of aliphatic and polyaromatic hydrocarbons, phthalate esters, phenols, and pesticides in environmental samples extracted from water. Chromatographic background levels were minimized, and compounds whose chromatographic peaks were unresolved before fractionation were isolated into separate fractions. This afforded more highly reliable gc/ms identifications. Prefractionation also served to retard the rapid degradation of capillary columns which was caused by the injection of unfractionated samples.

888: Metabolomic Urine Samples Profiling Using High Performance Liquid Chromatography Coupled with Mass Spectrometry to Detect Bladder Cancer

2007 ◽  
Vol 177 (4S) ◽  
pp. 295-295
Author(s):  
Michael Mullerad ◽  
Haleem J. Issaq ◽  
Alexander Kravtsov ◽  
Timothy Waybright ◽  
Brian Luke ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Bladder Cancer ◽  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
High Performance ◽  
Urine Samples
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