title: Highly Simple Deep Eutectic Solvent Extraction of Manganese in Vegetable Samples Prior to Its ICP-OES Analysis.
abstract: In the present work, simple and sensitive extraction methods for selective determination of manganese have been successfully developed. The methods were based on solubilization of manganese in deep eutectic solvent medium. Three deep eutectic solvents with choline chloride (vitamin B4) and tartaric/oxalic/citric acids have been prepared. Extraction parameters were optimized with using standard reference material (1573a tomato leaves). The quantitative recovery values were obtained with 1.25 g/L sample to deep eutectic solvent (DES) volume, at 95 °C for 2 h. The limit of detection was found as 0.50, 0.34, and 1.23 μg/L for DES/tartaric, DES/oxalic, and DES/citric acid, respectively. At optimum conditions, the analytical signal was linear for the range of 10-3000 μg/L for all studied DESs with the correlation coefficient >0.99. The extraction methods were applied to different real samples such as basil herb, spinach, dill, and cucumber barks. The known amount of manganese was spiked to samples, and good recovery results were obtained.
authors.affiliation: Faculty of Pharmacy, Cumhuriyet University, 58140, Sivas, Turkey. esraer@cumhuriyet.edu.tr.
authors.forename: Esra
authors.initials: E
authors.lastname: Bağda
authors.affiliation: Department of Chemistry, Faculty of Sciences and Arts, Sakarya University, 54187, Adapazari, Sakarya, Turkey.
authors.forename: Hüseyin
authors.initials: H
authors.lastname: Altundağ
authors.affiliation: Department of Chemistry, Faculty of Sciences, Erciyes University, 38039, Kayseri, Turkey.
authors.forename: Mustafa
authors.initials: M
authors.lastname: Soylak
mesh_terms: D005591:Chemical Fractionation / Q000379:methods*; D002794:Choline / Q000737:chemistry; D019343:Citric Acid / Q000737:chemistry; D005504:Food Analysis / Q000379:methods*; D057230:Limit of Detection; D008345:Manganese / Q000032:analysis / Q000302:isolation & purification*; D019815:Oxalic Acid / Q000737:chemistry; D012997:Solvents / Q000737:chemistry; D013057:Spectrum Analysis / Q000379:methods; D013696:Temperature; D013997:Time Factors; D014675:Vegetables / Q000737:chemistry*
chemical_list: D012997:Solvents; D019343:Citric Acid; D008345:Manganese; D019815:Oxalic Acid; D002794:Choline
keywords: Deep eutectic solvent extraction; Manganese; Vegetable samples