%0 Journal Article %T Preconcentration of ultra-trace amounts of iron and antimony using ion pair solid phase extraction with modified multi-walled carbon nanotubes %A Fazelirad, Hamid %A Taher, Mohammad %J Microchimica Acta %V 181 %N 6 %P 655-662 %@ 0026-3672 %D 2014-01-24 %I Springer Vienna %~ DeepDyve