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Selective mercury determination after membrane complexation and total reflection X-ray fluorescence analysis

Koulouridakis Pavlos, Kallithrakas-Kontos Nikolaos

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URIhttp://purl.tuc.gr/dl/dias/5BD32774-DC79-4277-949D-B992379DB989-
Identifierhttps://doi.org/10.1021/ac049780a-
Identifierhttps://pubs.acs.org/doi/10.1021/ac049780a-
Languageen-
Extent5 pagesen
TitleSelective mercury determination after membrane complexation and total reflection X-ray fluorescence analysisen
CreatorKoulouridakis Pavlosen
CreatorΚουλουριδακης Παυλοςel
CreatorKallithrakas-Kontos Nikolaosen
CreatorΚαλλιθρακας-Κοντος Νικολαοςel
PublisherAmerican Chemical Societyen
DescriptionΔημοσίευση σε επιστημονικό περιοδικό el
Content SummaryA new method for low mercury concentration analysis in drinking waters is presented. Membranes containing a few micrograms of various complexing reagents were produced on the surface of quartz glasses (reflectors). The reflectors were immersed in water solutions containing various concentrations of inorganic mercury salts at low concentrations (1−40 ng/mL). The membranes were left to equilibrate in 5−500 mL of solution for many hours; when the equilibration stage was finished they were cleaned with ultrapure water and left to dry. Analyses were performed by total reflection X-ray fluorescence (TXRF). The effects of various experimental parameters (complexing agent, equilibrium time, sample volume, etc.) as well as the selectivity of the membranes were studied. The complexing reagent dithizone with a PVC-based membrane gave the best results. The limit of quantitation was 0.8 ng/mL.en
Type of ItemPeer-Reviewed Journal Publicationen
Type of ItemΔημοσίευση σε Περιοδικό με Κριτέςel
Licensehttp://creativecommons.org/licenses/by/4.0/en
Date of Item2015-10-09-
Date of Publication2004-
SubjectMercury concentrationen
SubjectMembranesen
SubjectX-ray fluorescence en
Bibliographic CitationP.E. Koulouridakis and N.G. Kallithrakas-Kontos, "Selective mercury determination after membrane complexation and total reflection X-ray fluorescence analysis," Anal. Chem., vol. 76, no. 15, pp. 4315–4319, Jun. 2004. doi: 10.1021/ac049780aen

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