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Abuzar Kabir

Abuzar Kabir

Florida International University, USA

Title: Fabric Phase Sorptive Extraction (FPSE): A versatile sample preparation technology that meets the demands of twenty first century modern analytical laboratories


Biography: Abuzar Kabir


Statement of the Problem: The invention of fabric phase sorptive extraction (FPSE) has begun a new era in analytical sample
preparation by ingeniously combining two competing for sample preparation techniques, solid phase extraction (SPE) and solid
phase microextraction (SPME) into a single sample preparation technology platform. The integrated system, FPSE utilizes a
flexible, yet active fabric (cellulose, polyester and fiberglass) substrate to host a thin layer of sol-gel derived extracting sorbent.
The engineered selectivity of the sol-gel sorbents and the hydrophobicity/hydrophilicity of the fabric substrate synergistically
complement to the net polarity of the fabric phase sorptive extraction medium and consequently, determine its extraction
efficiency. The sponge-like porous architecture of sol-gel extraction sorbent and the inherent permeability of the fabric create an
extraction medium that mimics a solid phase extraction disk and allows permeating aqueous sample matrix through its body,
leading to rapid sorbent-analyte interaction and subsequent successful retention of the analyte(s) onto the extraction medium.
The flexibility of the FPSE medium permits direct insertion into the sample container for analyte extraction and thus minimizes
the number of transfer containers used in the sample preparation process. The sol-gel coating technology allows utilization of
typical functional ligands commonly used in solid phase extraction such as C8/C18 as well as polymers used in solid phase
microextraction such as polydimethylsiloxane (PDMS). Unlike SPE and SPME, FPSE can be performed either in equilibrium
extraction mode (as in SPME) or inexhaustive extraction mode (as in SPE). In addition, sol-gel coated sorbents demonstrate
superior thermal, solvent and pH stability (1-13) compared to conventional sorbents. Due to these unmatched advantages,
FPSE has gained considerable popularity in a short period and has demonstrated numerous applications in a wide variety
of samples including food, biofluids, wastewater and air. In the current talk, analytical data pertaining to some fascinating
applications of FPSE will be presented.