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Applicability of a magnetic bucky gel for microextraction of mercury from complicated matrices followed by cold vapor atomic absorption spectroscopy
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Chemistry, Applied Physical Chemistry.
Kharazmi Univ, Fac Chem, Tehran, Iran..
KN Toosi Univ Technol, Fac Chem, Dept Analyt Chem, Tehran, Iran..
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Chemistry, Applied Physical Chemistry.ORCID iD: 0000-0002-3444-9987
2019 (English)In: Separation science and technology (Print), ISSN 0149-6395, E-ISSN 1520-5754Article in journal (Refereed) Published
Abstract [en]

A new eco-friendly bucky gel nano sorbent consisting of magnetic grapheneoxide (MGO) and an ionic liquid (IL) was used based on dispersive extraction technique followed by cold vapor atomic absorption spectroscopy for determination of mercury in river water, milk, omega-3 supplements, and lipstick. The optimum conditions for extraction were 50 mg of sorbent (mass ratio IL/MGO: 26), 8 min vortexing, acetate buffer pH = 4, and for desorption 3 min vortexing of HNO3 (1 mL). The limits of detection, quantification, preconcentration factor and extraction recovery were found at 0.57, 1.88 mu g L-1, 21 and 84%. Relative standard deviation (RSD) was 6.5% (n = 3).

Place, publisher, year, edition, pages
TAYLOR & FRANCIS INC , 2019.
Keywords [en]
Bucky gel, ionic liquid, magnetic nano particles, microextraction, complicated matrices
National Category
Analytical Chemistry
Identifiers
URN: urn:nbn:se:kth:diva-251285DOI: 10.1080/01496395.2019.1597120ISI: 000465661400001Scopus ID: 2-s2.0-85063616314OAI: oai:DiVA.org:kth-251285DiVA, id: diva2:1314890
Note

QC 20190510

Available from: 2019-05-10 Created: 2019-05-10 Last updated: 2019-05-10Bibliographically approved

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Emmer, Åsa

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