TITLE

Fiber-packed SPE tips based on electrospun fibers

AUTHOR(S)
Yiyun Zhang; Xuejun Kang; Liqin Chen; Chao Pan; Yingfang Yao; Zhong-Ze Gu
PUB. DATE
July 2008
SOURCE
Analytical & Bioanalytical Chemistry;Jul2008, Vol. 391 Issue 6, p2189
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A novel fiber-packed solid-phase extraction (SPE) tip was designed based on electrospun nanofibers. The tip was used to investigate the extraction of hydrocortisone (HC), cortisone acetate (CA), ethinylestradiol (EE), and estradiol (E2). The effects of diameters, porous figurations, and functional groups of the electrospun fibers on the selectivity and efficiency were studied. The experimental results indicated that the detection limit of cortisol in water sample could be as low as 0.75 ng/mL. When the tip is used for detection of cortisol in human hair the efficiency of biological sample pretreatment is better than the traditional SPE method. Our method could significantly simplify the traditional SPE process and lower the cost. Industrial application of the tip is anticipated. [Figure not available: see fulltext.]
ACCESSION #
32785867

 

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