“…Among these methods, LLE is an exhaustive traditional preparation technique used to extract and preconcentrate different analytes from environmental water samples. SPE includes advantages of simplification of purification process, high enrichment factor and recovery, low consumption of organic eluents, short extraction time, low cost and ease of automation and operation, and has gradually replaced liquid-liquid extraction and other procedures of extraction and preconcentration (Balinova et al, 2007;Zhou et al, 2006;Rykowska et al, 2004Rykowska et al, , 2005Inoue et al, 2002;Cai et al, 2003a, b;Jiang et al, 2007;Fatemi et al, 2014;Kawaguchi et al, 2004;Maragou et al, 2006;Vílchez et al, 2001;Wen et al, 2006;Mei et al, 2011;Zhao et al, 2009;Moral et al, 2005;Hoa et al, 2005).…”