SPME-Adsorption versus Absorption: Which Fiber is Best for Your Application?

SUPELCO A Systematic Approach for Selecting the Appropriate SPME Fiber Robert E. Shirey and Raymond F. Mindrup Supelco, Supelco Park, Bellefonte, PA 16823 T400156 DKF ©1999 Sigma-Aldrich Co. 00-0001 Overview of Presentation • Factors that affect fiber selection • Description…

SUPELCO Optimization of Extraction Conditions and Fiber Selection for Low-Molecular Weight Analytes and Semi-volatile Analytes Using SPME Robert E. Shirey and Leonard M. Sidisky Supelco Inc., Bellefonte, PA USA ©1999 Sigma-Aldrich Co. SUPELCO INTRODUCTION Developing an application using SPME can…

Solid Phase Microextraction Theory and Basics of a modern Sample Preparation Technique SIGMA-ALDRICH Chemie GmbH Eschenstraße 5, 82024 Taufkirchen Germany SPME History • Patented Technology of the University of Waterloo, Canada • Inventor: Janusz Pawliszyn, Ph.D. • Automisation by Varian…

Sample Prep for Chromatographic Analysis of Difficult Matrixes Real World & Real Samples Urine Sample without sample prep 0 2 2 4 Time (min) 6 Urine Sample with sample prep 0 2 4 Time (min) 6 Sources of Chromatographic Errors…