%0 Conference Proceedings %T a novel solid phase microextraction using cadted fiber based sol gel techinque using poly (ethylene glycol) grafted multi-walled carboon nanotubes for determination of BTEX in water sample with gas chromatography falm ionization detector %A Sarafraz Yazdi, Ali %A Amiri, Amir Hassan %A Ronaghi, Gholam Hossein %A Eshtiagh Hosseini, Hossein %J پانزدهیمن کنگره شیمی ایران دانشگاه بوعلی سینا همدان %D 2011