development and optimization of a method for the determination of simazine, atrazine and propazine using solid-phase extraction and hplc/gc

Asolid-phase extraction (SPE) method, coupled with HPLC/DAD and GC/FID analysis has been developed for the simultaneous determination of simazine, atrazine and propazine in water samples. The compounds of interest were enriched on Envi-carb SPE tubes. The recoveries for simazine, atrazine and propazine from spiked Nanopure water were 101±5.6 %, 99±4.9 % and 96±5.7 %, respectively. The detection limits were 4.00, 8.00 and 10.00 ng absolute samplemass in the column for simazine, atrazine and propazine, respectively. Standard curve r2 values of 0.9828–0.9988 for the analyzed compounds were consistently obtained.