【摘 要】
：
A unique site-directed, i.e.in-pore and on-column derivatization method was developed for direct and fully automated analysis of aldehydes in human plasma b
【机 构】
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Laboratory of Bioseparation, Institute of Clinical Chemistry, Medical Center of the University of Mu
【出 处】
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第2届大连国际色谱学术报告会、第37届国际高效液相色谱及相关技术会议、第18届全国色谱学术报告会
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A unique site-directed, i.e.in-pore and on-column derivatization method was developed for direct and fully automated analysis of aldehydes in human plasma by combining SPE (Solid Phase Extraction) with HPLC-UV.A Restricted Access Material (RAM; LiChrospher ADS C4 (Merck) was selected as SPE-column packing for on-line sample clean-up and site-directed derivatization.High-molecular-weight interfering constituents of sample matrix (e.g.proteins) are eliminated based on size-exclusion chromatography, while low-molecular-weight target analytes (hexanal and heptanal) have free access to the internal pore surface.These properties allow a site-directed, i.e.in-pore derivatization of the extracted analytes.
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