Polymer-coated synthetic fibers designed for miniaturized sample preparation process |
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Authors: | Saito Yoshihiro Nojiri Masatoshi Imaizumi Motohiro Nakao Yuji Morishima Yoriko Kanehara Hideyuki Matsuura Hisashi Kotera Kenzo Wada Hiroo Jinno Kiyokatsu |
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Affiliation: | School of Materials Science, Toyohashi University of Technology, Toyohashi 441-8580, Japan. |
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Abstract: | Miniaturized sample preparation technique for complex sample matrices has been developed with a polymer-coated fibrous extraction medium. Several hundreds of fine fibrous materials were packed longitudinally into a fused-silica capillary followed by a polymeric coating on it to prepare the extraction capillary. The extraction capillary was installed in a liquid chromatograph as a sample loop of the injection valve. The on-line coupled sample preparation/separation system demonstrated a good validity for the analysis of phthalates in real river and wastewater samples. The lowest limits of quantification for several phthalates were less than 1 ng/ml. The effect of polymeric coating to the filaments on the extraction power was also investigated. |
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