Patent ID: 8230703
Filing Date: 2012-07-31
Classification: B01J,B82Y,C03C,G01N

Abstract:
1. A method for making solid phase micro extraction (SPME) fibers, wherein said method consists of steps: Obtaining a predetermined amount of fused silica fibers covered by polymeric cover, wherein said fused silica fibers are cut into 35 mm lengths; removing 15 mm of polymeric cover from said 35 mm length and obtaining a predetermined amount of naked fused silica fibers; Rinsing sequentially said predetermined amount of naked fused silica fibers by sonification in diluted hydrochloric acid, acetone and water respectively; preparing a solution consisting of 100 mL aqueous solution wherein said aqueous solution consists of a predetermined amount of metal ions soluble in water, a predetermined amount of oxidant with a predetermined pH; Inserting said predetermined amount of naked fused silica fibers into said solution for a predetermined time at a predetermined temperature, and obtaining a plurality of nanostructured SnO