%0 Journal Article %T Determination of non-steroidal anti-inflammatory drugs in urine by hollow-fiber liquid membrane-protected solid-phase microextraction based on sol–gel fiber coating %A Sarafraz Yazdi, Ali %A Amiri, Amirhassan %A Ronaghi, Gholam Hossein %A Eshtiagh Hosseini, Hossein %J Journal Chromatography B %@ 1570-0232 %D 2012