%0 Journal Article %T Determination of 3-nitroaniline in water samples by directly suspended droplet three-phase liquid-phase microextraction using 18-crown-6 ether and high-performance liquid chromatography %A Sarafraz Yazdi, Ali %A F. Mofazzeli %A Z. Es’haghi %J Journal of Chromatography A %@ 0021-9673 %D 2009