Supelco website

Many analyses are for a few similar molecules, or a class of molecules. In such cases, selectivity is highly desirable in the extraction. Selectivity in SPME has been reviewed. Information is also available at the Supelco website (this author is not and has never been funded by Supelco, and this author has no financial interest in Supelco) http //www.sigmaaldrich.com/Brands/ Supelco Home/Spotlights/SPME central.html. 

Source Adapted from SPME fiber package insert, Supelco, Inc., Bellfonte, PA, 1999 and from Supelco Website (WWW. SUpelCO. COIH). 

For more detail on apparatus and chromatographic columns see Supelco (Chromatographic Products for Analysis Purification Catalogue, www.sigmaaldrich.com/supelco/analytical) and websites at the end of the section on HPLC below). 

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