A novel fast room-temperature cloud point extraction coupled to graphite furnace atomic absorption spectroscopy for Copper(II) traces determination

A novel environmentally friendly rapid cloud point extraction at room temperature coupled to graphite furnace atomic absorption spectroscopy (RT-CPE-GFAAS) for Copper (II) traces quantification was developed. Were found the most optimal conditions instant surfactant rich phase of Triton X-100 formation and as a complex with 6,7-dihydroxy-2-phenyl-4-methylbenzopyrylium perchlorate (DHMPhB) immediately: addition 0.5 mol L−1 H2SO4 solution pH 4.5; 0.15 ammonium benzoate; 1.5 · 10–4 DHMPhB 1 v/v.% X-100. As diluent used 2-propanol. The calibration plot constructed under is linear in range concentrations 0.31–127 μg L−1, limit detection are 0.31 0.09 respectively. developed RT-CPE-GFAAS technique successfully determinate water samples affordable results.