scholarly journals Optimization of a Solid-Phase Extraction Protocol for Fractionation of Selected Steroids Using Retention Data from Micro Thin-layer Chromatography

2009 ◽  
Vol 25 (7) ◽  
pp. 935-939 ◽  
Author(s):  
Pawel K. ZARZYCKI ◽  
Elzbieta WLODARCZYK ◽  
Magdalena B. ZARZYCKA ◽  
Bronislaw K. GLÓD
Keyword(s):  
Solid Phase Extraction ◽  
Thin Layer ◽  
Thin Layer Chromatography ◽  
Solid Phase ◽  
Retention Data ◽  
Phase Extraction ◽  
Extraction Protocol ◽  
Layer Chromatography

Determination of sulfonamides and trimethoprim in spiked water samples by solid-phase extraction and thin-layer chromatography

2005 ◽  
Vol 18 (106) ◽  
pp. 423-426 ◽  
Author(s):  
Sandra Babić ◽  
Danijela Ašperger ◽  
Dragana Mutavdžić ◽  
Alka Horvat ◽  
Marija Kaštelan-Macan
Keyword(s):  
Solid Phase Extraction ◽  
Thin Layer ◽  
Thin Layer Chromatography ◽  
Water Samples ◽  
Solid Phase ◽  
Phase Extraction ◽  
Layer Chromatography

Identification of Synthetic Colors in Beverage Alcohol Products by Solid-Phase Extraction and Thin-Layer Chromatography

1994 ◽  
Vol 77 (5) ◽  
pp. 1335-1337 ◽  
Author(s):  
Sumer M Dugar ◽  
Jeffrey N Leibowitz ◽  
Randolph H Dyer
Keyword(s):  
Solid Phase Extraction ◽  
Thin Layer ◽  
Thin Layer Chromatography ◽  
Solid Phase ◽  
Phase Extraction ◽  
Enrichment Procedure ◽  
Solvent Systems ◽  
Layer Chromatography

Abstract A solid-phase extraction (SPE) sample cleanup and enrichment procedure coupled with thin-layer chromatography (TLC) is described for the enrichment of synthetic colors in all types of beverage alcohol products. SPE followed by TLC provides the identification of synthetic colors at sub-part-per-million levels. TWo complementary solvent systems afford detection of all the permitted (and some prohibited) synthetic colors in beverage alcohol products. This method is simple, offers consistency, and has no artifacts in TLC.

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