“…[24][25][26][27][28][29] In 1988 Valcarcel and et al reported a novel strategy for liquid-liquid extraction in continuous-ow systems without phase separation, in which a single segment of organic solvent interacts with an aqueous sample for separation purposes while none of the typical components for on-line extraction are incorporated. [30][31][32][33] In the present study, we employed a similar strategy to our previous work 34 in order to develop another ow-injection liquid-liquid microextraction (FI-LLME) method for the selective uorimetric determination of CL-15 explosive. 1,4,5,8-Tetranitro-1,4,5,8,tetraazadifurazano-[3,4-c][3,4-H] decalin (CL-15) has a sensitive and selective uorescent center, which is used for its detection and determination in various handmade real aqueous samples including some containing similar explosives.…”