Polymer-coated synthetic fibers designed for miniaturized sample preparation process.
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.
Saito
Yoshihiro
Y
School of Materials Science, Toyohashi University of Technology, Toyohashi 441-8580, Japan.
Nojiri
Masatoshi
M
Imaizumi
Motohiro
M
Nakao
Yuji
Y
Morishima
Yoriko
Y
Kanehara
Hideyuki
H
Matsuura
Hisashi
H
Kotera
Kenzo
K
Wada
Hiroo
H
Jinno
Kiyokatsu
K
D002851:Chromatography, High Pressure Liquid / Q000379:methods; D008904:Miniaturization; D011108:Polymers; D012680:Sensitivity and Specificity
D011108:Polymers