文档介绍：analytica chimica acta 610 (2008) 1–14
available at
journal homepage: ate/aca
Review article
A review on development of solid phase microextraction
fibers by sol–gel methods and their applications
Ashwini Kumar a, Gaurav a, Ashok Kumar Malik a,∗,
Dhananjay Kumar Tewary b, Baldev Singh a
a Department of Chemistry, Punjabi University, Patiala 147002, Punjab, India
b Institute of Himalayan Bioresource Technology, Palampur 176061, India
article info abstract
Article history: Solid phase microextraction (SPME) is an innovative, solvent free technology that is fast, eco-
Received 26 October 2007 nomical and versatile. SPME is a fiber coated with a liquid (polymer), a solid (sorbent) or a
Received in revised bination of both. The fiber coating takes up pounds from the sample by absorp-
10 January 2008 tion in the case of liquid coatings or adsorption in the case of solid coatings. The SPME
Accepted 10 January 2008 fiber is then transferred with the help of a syringe like device into the analytical instrument
Published on line 18 January 2008 for desorption and analysis of the target analytes. The sol–gel process provides a versatile
method to prepare size, shape and charge selective materials of high purity and homogene-
Keywords: ity by means of preparation techniques different from the traditional ones, for the chemical
Sol–gel technology analysis. This review is on the current state of the art and future trends in the developments
Solid phase microextraction of solid phase microextraction (SPME) fibers using sol–gel method. To achieve more selective
High pressure liquid determination of pound classes, the variety of different coating material for
chromatography SPME fibers has increased. Further developments in SPME as a highly efficient extraction
Gas chromatography technique, will greatly depend on new breakthroughs in the area of new coating material
Capillary electrophoresis developments for the SPME fibers. In sol–gel approach, appropriate sol–g