A New Chelating Reagent: Its Synthesis/Characterization and Application for the Determination of Cd(II) and Ni(II) in Various Food and Make-Up Product Samples by FAAS Using Simultaneous Microextraction Sampling.
A new and simple dispersive liquid-liquid simultaneous microextraction procedure was developed for the rapid separation and simultaneous extraction/preconcentration of Cd(II) and Ni(II) at ultratrace amounts. Microextraction of the analytes was carried out in the presence of 2-methyl-5-[(Z)-pyridin-4-yldiazenyl]quinolin-8-ol as the chelating reagent. Chloroform and ethanol were used as the extraction and dispersive solvents. Various parameters that influence the microextraction procedure's efficiency-such as pH, centrifugation rate and time, reagent concentration, and sampling volume on the recovery of analytes-were examined. The calibration curves were linear in the range of 0.01-1.25 and 0.075-5 mg/L with LODs of 0.25 and 0.84 μg/L, and with a preconcentration factor of 94, for Cd(II) and Ni(II), respectively. Precision was >1.0%. The accuracy of the method was confirmed by analyzing the Certified Standard Reference Material (CWW-TMD: Certified wastewater-Trace metals, wastewater). The results show that the dispersive liquid-liquid simultaneous microextraction pretreatment is a sensitive, rapid, simple, green, and safe method for the separation/preconcentration of cadmium and nickel.
Erciyes University, Faculty of Sciences, Department of Chemistry, TR-38039, Kayseri, Turkey.
Şerife
Ş
Saçmacı
Bozok University, Faculty of Arts and Sciences, Department of Chemistry, TR-66200, Yozgat, Turkey.
Mustafa
M
Saçmacı
D002104:Cadmium / Q000032:analysis*; D002614:Chelating Agents / Q000138:chemical synthesis* / Q000737:chemistry; D002851:Chromatography, High Pressure Liquid; D003358:Cosmetics / Q000737:chemistry*; D005506:Food Contamination / Q000032:analysis*; D059627:Liquid Phase Microextraction; D009532:Nickel / Q000032:analysis*; D052617:Solid Phase Microextraction; D014874:Water Pollutants, Chemical / Q000032:analysis
D002614:Chelating Agents; D003358:Cosmetics; D014874:Water Pollutants, Chemical; D002104:Cadmium; D009532:Nickel