Back to results
US 6,783,680 B2Granted
Sample preconcentration tubes with sol-gel surface coatings and/or sol-gel monolithic beds
AssigneeUniversity of South Florida
InventorAbdul Malik
Life of this patent
Estimating the term…
Abstract
A method of preconcentrating trace analytes is accomplished by extracting polar and non-polar analytes through a sol-gel coating. The sol-gel coating is either disposed on the inner surface of a capillary tube or disposed within the tube as a monolithic bed.
Claims11
A method of preconcentrating trace analytes, comprising to steps of:
- processing a hollow capillary by hydrothermal treatment;
- filling the capillary with a sol-gel extraction medium, wherein the sol-gel extraction medium is chemically bound to inner walls of the hollow capillary to form a sol-gel extraction medium-loaded capillary;
- and
- exposing the loaded capillary to a sample containing at least one target analyte, wherein the target analyte becomes disposed inside the loaded capillary.
1 more element
Dependencies are inferred from the claim text.