A simple, rapid and inexpensive method for separation and pre-concentration of some traces of hazardous elements is presented prior to their flame atomic absorption spectrometric determinations. At pH 9.0±0.1; cadmium(II) and zinc(II) were separated simultaneously with 2-(4-Choloro Phenyl) –2,3 Di Hydro Qinazoline (1- H) – 4 one (CPHQO) as a new complexing agent and floated after adding sodium dodecyl sulfate (SDS) as a foaming reagent. The floated layer was then eluted by concentrated nitric acid in methanol and introduced to the flame atomic absorption spectrometer (FAAS). These ions can be eluted quantitatively with 0.5 ml1.0M HNO3 in methanol. The linear range of the determination is between 0.03-1.5 μg mL-1 for Cd2+ and 0.02-1.7 μg mL-1 for Zn2+ with a detection limits for Cd2+ and Zn2+ were 0.9 ng mL-1 and 1.2 ng mL-1, respectively. The method has been successfully applied for determination of those heavy metals in colored human hair and dryer agents of paint samples.
