DETERMINATION AND PRECONCENTRATION OF MANGANESE USING IONIC LIQUID BASED MICROEXTRACTION TECHNIQUE IN BIOLOGICAL SAMPLES
Journal: Academic Research International (Vol.4, No. 4)Publication Date: 2013-07-15
Authors : Fariba Tadayon Mahnoosh Hanasaei Masoumeh Madadi;
Page : 176-184
Keywords : Cold-induced aggregation microextraction Ionic Liquid; Manganese; UV-Vis spectrophotometry;
Abstract
In this work, a procedure for preconcentration and determination of manganese using modified cold-induced aggregation microextraction(CIAME) based ionic liquid with the reagent 1-(2-pyridylazo)-2-naphthol (PAN) as complexing reagent was developed. In the preconcentration step, the mixture was cooled in an ice bath and manganese from 10mL of an aqueous solution was extracted into70?L of ionic liquid, 1-hexyl-3-methylimidazolium hexafluorophosphate [Hmim][PF6]. After centrifuging the extraction phase was settled. Then, the absorbance of the complex was measured by UV-Vis spectrophotometry. In this study, the effect of matrix ions on the extraction efficiency of Mn+2were investigated. Also the optimization extraction conditions, such as: pH, PAN concentration, extraction time, addition of salt, ionic liquid volume and centrifugation rate were studied. The relative standard deviation was 1.14 % (n=4). The detection limit of 0.54 ngL-1 and enrichment factor of 70 for Mn+2 were achieved. The presented procedure was successfully applied for determination of manganese in environmental and biological samples.
Other Latest Articles
- QUANTIFICATION OF TOXIC ELEMENTS IN TAIL HAIR OF COWS AS AN INDICATOR OF ENVIRONMENTAL EXPOSURE IN DIFFERENT AREAS FROM IRAN
- EFFECT OF MOISTURE CONTENT ON THE YIELD AND CHARACTERISTICS OF OIL FROM MORINGA OLEIFERA SEEDS
- THE USE OF ENDOPHYTIC FUNGI AS BIOPESTICIDE AGAINST DOWNY MILDEW PERONOSCLEROSPORA SPP. ON MAIZE
- COMMUNITY EXTENSION SERVICE IN THE WASTE MANAGEMENT PRACTICES OF BRGY. WAWA RESIDENTS IN BATANGAS CITY
- COMPATIBILITY OF CHAIRS AND TABLES IN COMPUTER LABORATORY TO THE STUDENTS’ BODY DIMENSION: AN ASSESSMENT
Last modified: 2013-11-17 22:14:02