Transcription of Solid-Phase Extraction with Oasisfi HLB Sorbent
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Solid-Phase Extraction with Oasisfi HLB Sorbent
Solid-Phase Extraction withOasis HLB Sorbent :Simple Procedures for SuperiorSample 1998 Waters Presents:Outline Introduction Oasis HLB Sorbent Physical properties Advantages compared with traditionalsorbents A Simple Strategy for Most Samples Agrochemicals and metabolites Pharmaceuticals Environmental Advanced Strategies for DifficultSamples 1998 Waters phase Extraction (SPE) methods are widely used for organic analysis of aqueous samples in the agrochemical, pharmaceutical, and environmental industries. Traditional silica based sorbents - effective for non-polar analytes Polymeric sorbents - higher capacity than silica based sorbentsOasis HLB - more effective for polar analytes and metabolites 1998 Waters of TraditionalSample Preparation Methods Liquid-Liquid Extraction Cumbersome Time consuming Not easy to automate Not good for polar drugs and metabolites Solid-Phase Extraction Overcomes many problems of othermethods, but.
Ł Old Method, C18 Silica Œ 1000 mg cartridge Œ 500 mL sample, 50 minutes Œ final volume 4 mL Œ recovery > 85% Œ LOQ ~ 50 ng/L if …
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