Abstract
A novel packed-fiber solid phase extraction procedure based on electrospun nanofibers for simultaneous determination of vitamins A (retinol) and E (α-tocopherol) in human plasma has been developed. Parameters affecting extraction efficiency were investigated in detail. The limit of detection is 0.01 μg mL−1 for retinol, and 0.3 μg mL−1 for α-tocopherol. The linear range is from 0.05 to 2.0 μg mL−1 for retinol, and from 0.5 to 30 μg mL−1 for α-tocopherol. The precision (RSD) is <6%, and the relative recovery >90%. The method was applied to analysis of retinol and α-tocopherol in human plasma with satisfactory results.
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Acknowledgement
This work was jointly supported by Jiangsu Science and Technology Department (Grant No. BG2007044), Suzhou Science and Technology Department (Grant No. SYJG0912), and Jiangsu Preventive Medicine Foundation (Grant No. Y2006025).
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Liu, Z., Kang, X. & Fang, F. Solid phase extraction with electrospun nanofibers for determination of retinol and α-tocopherol in plasma. Microchim Acta 168, 59–64 (2010). https://doi.org/10.1007/s00604-009-0263-y
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DOI: https://doi.org/10.1007/s00604-009-0263-y