The investigation of electrospun polymer nanofibers as a solid-phase extraction sorbent for the determination of trazodone in human plasma

Electrospun nanofiber sorbents for the pre-concentration of urinary 1-hydroxypyrene

“…Electrospun nanofibers have been widely received due to their great analytical potential when employed as SPE sorbents (Kang et al 2009;Kang et al 2007;Chigome et al 2011;Adeyemi et al 2011). Their high specific surface areas (Liu et al 2010;Aguado et al 2009;Zhang et al 2008) and ease of functionalization with various groups for specific purposes (Kang et al 2007;Kang et al 2008;Yoshitake et al 2003) has increased their acceptance in the scientific community.…”

“…Their high specific surface areas (Liu et al 2010;Aguado et al 2009;Zhang et al 2008) and ease of functionalization with various groups for specific purposes (Kang et al 2007;Kang et al 2008;Yoshitake et al 2003) has increased their acceptance in the scientific community. The simplest and most flexible means of fabricating nanofibers is via electrospinning (Chigome et al 2011;Uyar and Besenbacher 2008;Greiner and Wendorff 2007;Ramakrishna et al 2006).…”

“…While nylon 6 gave a high recovery of 72%, PET gave the lowest recovery of 38%. The performance of nanofibers as SPE sorbents is largely dependent on their surface characteristics, morphology, composition, and the polymer functionalities (Kang et al 2009;Kang et al 2007;Kataoka et al 2009). The experimental results revealed that the presumed hydrophobicity of the nanofibers and hydrogen bonding exhibited significant effects on their sorption rate and capacity towards 1-hydroxypyrene.…”

“…It has since been overtaken by solid-phase extraction (SPE) due to its numerous demerits (Oluseyi et al 2011;Kang et al 2009;Kang et al 2007;Chigome et al 2011;Kataoka et al 2009). SPE has gained popularity and acceptability because of its selectivity, reproducibility (Wardencki et al 2007), ease of operation, and the wide range of available sorbent materials.…”

Electrospun polystyrene/Aliquat 336 for preconcentration and determination of thiocyanate in flow analysis

“…A series of studies have been conducted by Kang et al on the use of electrospun polystyrene fibres as a material for solid phase extraction of organic molecules [15,[28][29][30][31][32]. They prepared fibre-packed solid phase extraction columns by inserting segments of electrospun polystyrene fibre mat into pippette tips and pressing it down.…”