Development and optimization of a method for the determination of simazine, atrazine and propazine using solid-phase extraction and HPLC/GC

A solid-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 sample mass in the column for simazine, atrazine and propazine, respectively. Standard curve r(2) values of 0.9828-0.9988 for the analyzed compounds were consistently obtained.