Determination of trace metals in geological samples by atomic absorption spectrophotometry after preconcentration by Aspergillus niger immobilized on sepiolite

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dc.contributor.authorBag, H
dc.contributor.authorTurker, AR
dc.contributor.authorLale, M
dc.date.accessioned2020-06-25T17:34:38Z
dc.date.available2020-06-25T17:34:38Z
dc.date.issued1999
dc.departmentKırıkkale Üniversitesi
dc.descriptionXIIth National Chemistry Congress -- SEP 07-11, 1998 -- EDIRNE, TURKEY
dc.description.abstractA method for the determination of Cu, Zn, Fe, Ni and Cd in geological samples by flame atomic absorption spectrophotometry (FAAS) after preconcentrating by Aspergillus niger immobilized on sepiolite has been developed. The column adsorption method was used for the preconcentration studies. Effects of pH, amount of adsorbent, elution solution, flow rate and interfering ions on the recovery of the analytes have been investigated. Recoveries of Cu, Zn, Fe, Ni and Cd on Aspergillus niger immobilized sepiolite were 98.01+/-0.06%, 98.8+/-0.5%, 98.0+/-0.4%, 96.4+/-0.8% and 94.8+/-0.6% at 95% confidence level, respectively. The breakthrough capacity of the adsorbent was found as 0.093, 0.078, 0.067, 0.085 and 0.102 mmol/g for Cu, Zn, Fe, Ni and Cd, respectively. The proposed method was applied to the determination of trace metals in geological samples, such as AGV-1, JG-1a and Wismuterz II. Trace metals have been determined with about 5% relative error.en_US
dc.identifier.citationclosedAccessen_US
dc.identifier.doi10.2116/analsci.15.1251
dc.identifier.endpage1256en_US
dc.identifier.issn0910-6340
dc.identifier.issue12en_US
dc.identifier.scopus2-s2.0-0342545412
dc.identifier.scopusqualityQ3
dc.identifier.startpage1251en_US
dc.identifier.urihttps://doi.org/10.2116/analsci.15.1251
dc.identifier.urihttps://hdl.handle.net/20.500.12587/2809
dc.identifier.volume15en_US
dc.identifier.wosWOS:000084248500014
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherJapan Soc Analytical Chemen_US
dc.relation.ispartofAnalytical Sciences
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjecttrace metal determinationen_US
dc.subjectpreconcentrationen_US
dc.subjectgeological samplesen_US
dc.subjectAspergillus nigeren_US
dc.subjectimmobilizationen_US
dc.subjectsepioliteen_US
dc.subjectflame atomic absorption spectrometryen_US
dc.titleDetermination of trace metals in geological samples by atomic absorption spectrophotometry after preconcentration by Aspergillus niger immobilized on sepioliteen_US
dc.typeArticle

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