An efficient method for the determination of eight parabens in human breast tumor (n = 102) and peripheral adipose tissue samples (n = 87) was successfully developed. After a precipitation procedure (acetonitrile-water-15% (w/v) zinc sulfate solution) was applied to finely-chopped tissue samples,
A simple and sensitive method for the simultaneous determination of eight parabens in human plasma and urine samples was developed. The samples were preconcentrated using dispersive liquid-liquid microextraction based on the solidification of floating organic drops and determined by high-performance