水分析

Abstract(#br)This paper describes a new, efficient and versatile method for the sampling and preconcentration of PAH in environmental water matrices using special hybrid magnetic carbon nanotubes. These N-doped amphiphilic CNT can be easily dispersed in any aqueous matrix due to the N containing hydrophilic part and at the same time show high efficiency for the adsorption of different PAH contaminants due to the very hydrophobic surface. After adsorption, the CNT can be easily removed from the medium by a simple magnetic separation.

Abstract(#br)A highly porous copper foam was constructed on the surface of an unbreakable copper wire by a very rapid electrochemical method. Then, the copper oxide arrays were constructed on the pore surface of the copper foam by the thermal process. The applicability of the fiber was examined for the head space SPME (HS-SPME) of benzene, toluene, ethylbenzene and xylene (BTEX) in different water samples followed by gas chromatography–flame ionization detection.