Fabric Phase Sorptive Extractors

摘要

A fabric phase sorptive extractor (FPSE) is a sampling device where a flexible fabric is coated with at least one sol-gel derived film that includes at least two of a metal oxide portion, a siloxy portion, and an organic portion, where the gel has at least some amorphous portions. The FPSE is flexible such that it can be used in an extended form or draped over a solid surface to contact a gaseous, liquid, or solid environment and can be manipulated for placement in a container where the absorbed analyte can be removed from the FPSE for instrumental analysis. The FPSE can have specific functionalities that bind to specific analytes or can provide a general sorbent medium for extraction of a wide range of analytes, such that the sampling device can be employed for sampling analytes with biological, environmental, food, pharmaceutical, bio-analytical, clinical, forensic, toxicological, national security, public health, and/or safety implications.

主权项

1. A fabric phase sorptive extractor (FPSE), comprising:
a flexible fabric; a binding gel film, wherein the binding gel film is bound or bonded to the flexible fabric and wherein the binding gel film comprises a first metal oxide portion, and/or a first siloxy portion, and/or a first organic portion; a first absorbent gel film bound to the binding gel film, wherein the first absorbent gel film comprises at least two of: a second metal oxide portion; a second siloxy portion; and a second organic portion, wherein the second siloxy portion and/or the second organic portion is polymeric, wherein at least a portion of the first absorbent gel film is amorphous, wherein the first absorbent gel film is absorbent toward at least one target analyte; and optionally, at least one second absorbant gel film bound to the binding gel film or the first absorbent gel film or one of the at least one second absorbent film, wherein the second absorbent gel film comprises at least two of: a second metal oxide portion; a second siloxy portion; and a second organic portion, wherein the second siloxy portion and/or the second organic portion is polymeric, wherein at least a portion of the first absorbent gel film is amorphous, wherein the second absorbent gel film is absorbent toward at least one target analyte and wherein the FPSE is flexible.