Undecanol-ethanol-water ternary system based microextraction for the detection of cadmium

Oya Aydın Urucu, Ece Kök Yetimoğlu, Şeyda Dönmez, Sabahattin Deniz


An eco-friendly, simple, and sensitive solidification of floating organic drop based dispersive liquid-liquid microextraction (SFODME) procedure was intro­duced for the separation and preconcentration of cadmium. After 2-(5-bromo-2 pyri­dylazo)-5-(diethylamino) phenol (5-Br-PADAP) were complexed with cadmium ions in sample, Undecanol-ethanol-water ternary system was used organic solvent for extraction. The main factors relevant to the microextraction efficiency such as pH, concentration of 5-Br-PADAP, amount of extraction solvent were optimized. The detection limit is 0.01 µg L-1 along with preconcentration factor 266. The recovery of the analyte was between 98 % and 103 %, with relative standard deviate­on below 6 %. The procedure developed was successfully tested on the analysis of water, hair dye, and food samples.


eco-friendly; GFAAS; microextraction; heavy metal ions

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DOI: https://doi.org/10.2298/JSC180831110U

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