Author/Authors :
Saito، نويسنده , , Yoshihiro and Nojiri، نويسنده , , Masatoshi and Imaizumi، نويسنده , , Motohiro and Nakao، نويسنده , , Yuji and Morishima، نويسنده , , Yoriko and Kanehara، نويسنده , , Hideyuki and Matsuura، نويسنده , , Hisashi and Kotera، نويسنده , , Kenzo and Wada، نويسنده , , Hiroo and Jinno، نويسنده , , Kiyokatsu، نويسنده ,
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.
