Open AccessMicelle-based restricted access ion-pair microextraction of phosphate at trace levels in water samples for separation, preconcentration and determination
Author(s) -
Mustafa Soylak,
Haldun Hilmi Gorucu,
Erkan Yılmaz
Publication year - 2020
Publication title -
the eurobiotech journal
Language(s) - English
Resource type - Journals
ISSN - 2564-615X
DOI - 10.2478/ebtj-2020-0010
Subject(s) - detection limit , micelle , solvent , phosphate , extraction (chemistry) , chemistry , chromatography , malachite green , ion , analytical chemistry (journal) , materials science , organic chemistry , aqueous solution , adsorption
A new and simple micelles-rich restricted access supramolecular solvent-based liquid phase microextraction method (RASUPRASs-LPME) based on the ion-pair complex formation of phosphate (PO 4 3- ) ions with ammonium heptamolybdate and malachite green in acidic medium was developed. The phosphate ion concentration after microextraction of the ion-pair complex to the hexagonal aggregates of decanoic acid (DA) was measured with micro-volume UV-Vis spectrophotometer at 625 nm. All analytical parameters which are effective on the method such as acid type and concentration, supramolecular solvent volume, amount of the components forming the complex, sample volume, were optimized. The preconcentration factor (PF), limit of detection (LOD) and limit of quantification (LOQ) for the developed method was found to be 15, 9.6 and 32.1, respectively. The RA-SUPRAs-LPME method was finally applied for the analysis of the phosphate content of different types of water samples.