%0 Journal Article %T Comparative study of the sol–gel based solid phase microextraction fibers in extraction of naphthalene, fluorene, anthracene and phenanthrene from saffron samples extractants %A Sarafraz Yazdi, Ali %A Ghaemi, Ferial %A Amiri, Amirhassan %J Microchimica Acta %@ 0026-3672 %D 2012