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Fiber Coatings

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The coating on the SPME fiber can be selected to improve sensitivity for specific analytes of interest; ideally the sorbent layer will have a high affinity for the target analytes.[1][2] There are many commercially available SPME fiber coatings that are combinations of polydimethylsiloxane, divinylbenzene, Carboxen, polyacrylate, and polyethylene glycol.[3][4] However, one downside to many of the commercially available SPME fibers is that they tend to be physically, brittle due to their composition.[2] Depending on the characteristics of the target analytes, certain properties of the coating improve extraction such as polarity, thickness, and surface area.[1][5] The sample matrix can also influence the fiber coating selection. Based on the sample and analytes of interest, the fiber may need to tolerate direct immersion as opposed to a headspace extraction.[3]

  1. ^ a b Spietelun, Agata; Pilarczyk, Michał; Kloskowski, Adam; Namieśnik, Jacek (2010). "Current trends in solid-phase microextraction (SPME) fibre coatings". Chemical Society Reviews. 39 (11): 4524. doi:10.1039/c003335a. ISSN 0306-0012.
  2. ^ a b Spietelun, Agata; Kloskowski, Adam; Chrzanowski, Wojciech; Namieśnik, Jacek (2012-12-28). "Understanding Solid-Phase Microextraction: Key Factors Influencing the Extraction Process and Trends in Improving the Technique". Chemical Reviews. 113 (3): 1667–1685. doi:10.1021/cr300148j. ISSN 0009-2665.
  3. ^ a b Reyes-Garcés, Nathaly; Gionfriddo, Emanuela; Gómez-Ríos, German Augusto; Alam, Md. Nazmul; Boyacı, Ezel; Bojko, Barbara; Singh, Varoon; Grandy, Jonathan; Pawliszyn, Janusz (2017-12-14). "Advances in Solid Phase Microextraction and Perspective on Future Directions". Analytical Chemistry. 90 (1): 302–360. doi:10.1021/acs.analchem.7b04502. ISSN 0003-2700.
  4. ^ Kumar, Ashwini; Gaurav; Malik, Ashok Kumar; Tewary, Dhananjay Kumar; Singh, Baldev (2008-03-03). "A review on development of solid phase microextraction fibers by sol–gel methods and their applications". Analytica Chimica Acta. 610 (1): 1–14. doi:10.1016/j.aca.2008.01.028. ISSN 0003-2670.
  5. ^ Wardencki, Waldemar; Michulec, Magdalena; Curylo, Janusz (2004-07-29). "A review of theoretical and practical aspects of solid-phase microextraction in food analysis". International Journal of Food Science and Technology. 39 (7): 703–717. doi:10.1111/j.1365-2621.2004.00839.x. ISSN 0950-5423.