Comparison of different mesoporous silicas for off-line solid phase extraction of 17β-estradiol from waters and its determination by HPLC-DAD

- Mesoporous silicas were examined as sorbents for solid-phase extraction of 17β-estradiol in waters.
- SBA-C18 had the highest adsorption affinity towards 17β-estradiol and under optimized conditions.
- 17β-Estradiol was determined by HPLC-DAD in drinking water with high recoveries and precision.