Patent ID: 7125580
Filing Date: 2006-10-24
Classification: B01J,G01N,Y10T

Abstract:
1. A method for forming a solid phase microextraction apparatus, comprising: applying a layer of a gel precursor solution on at least the end of a support structure formed of a material selected from the group consisting of glass fibers, plastic fibers, and a metal wire, wherein the layer covers the entire perimeter of one end of the support structure; drying the layer to form a sample collection substrate, wherein the substrate comprises a material selected from the group consisting of organic aerogels, inorganic aerogels, inorganic xerogels, organic xerogels, and combinations thereof; and applying particles on the layer before drying the layer, wherein the particles comprise a material selected from the group consisting of organic aerogels, organic xerogels, inorganic aerogels, inorganic xerogels, and combinations thereof.