1 Ocak 2020 Dergi makalesi Açık Erişim

Coldur, Muge; Oguzlar, Sibel; Ongun, Merve Zeyrek; Oter, Ozlem; Yildirim, Serdar

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  <identifier identifierType="URL">https://aperta.ulakbim.gov.tr/record/4753</identifier>
  <creators>
    <creator>
      <creatorName>Coldur, Muge</creatorName>
      <givenName>Muge</givenName>
      <familyName>Coldur</familyName>
      <affiliation>Dokuz Eylul Univ, Grad Sch Nat &amp; Appl Sci, Izmir, Turkey</affiliation>
    </creator>
    <creator>
      <creatorName>Oguzlar, Sibel</creatorName>
      <givenName>Sibel</givenName>
      <familyName>Oguzlar</familyName>
      <affiliation>Dokuz Eylul Univ, Ctr Fabricat &amp; Applicat Elect Mat, Izmir, Turkey</affiliation>
    </creator>
    <creator>
      <creatorName>Ongun, Merve Zeyrek</creatorName>
      <givenName>Merve Zeyrek</givenName>
      <familyName>Ongun</familyName>
      <affiliation>Dokuz Eylul Univ, Izmir Vocat High Sch, Chem Technol Program, Izmir, Turkey</affiliation>
    </creator>
    <creator>
      <creatorName>Oter, Ozlem</creatorName>
      <givenName>Ozlem</givenName>
      <familyName>Oter</familyName>
      <affiliation>Dokuz Eylul Univ, Fac Sci, Dept Chem, Izmir, Turkey</affiliation>
    </creator>
    <creator>
      <creatorName>Yildirim, Serdar</creatorName>
      <givenName>Serdar</givenName>
      <familyName>Yildirim</familyName>
    </creator>
  </creators>
  <titles>
    <title>Usage Of Thiocyanate-Based Ionic Liquid As New Optical Sensor Reagent: Absorption And Emission Based Selective Determination Of Fe (Iii) Ions</title>
  </titles>
  <publisher>Aperta</publisher>
  <publicationYear>2020</publicationYear>
  <dates>
    <date dateType="Issued">2020-01-01</date>
  </dates>
  <resourceType resourceTypeGeneral="Text">Journal article</resourceType>
  <alternateIdentifiers>
    <alternateIdentifier alternateIdentifierType="url">https://aperta.ulakbim.gov.tr/record/4753</alternateIdentifier>
  </alternateIdentifiers>
  <relatedIdentifiers>
    <relatedIdentifier relatedIdentifierType="DOI" relationType="IsIdenticalTo">10.1016/j.saa.2019.117385</relatedIdentifier>
  </relatedIdentifiers>
  <rightsList>
    <rights rightsURI="http://www.opendefinition.org/licenses/cc-by">Creative Commons Attribution</rights>
    <rights rightsURI="info:eu-repo/semantics/openAccess">Open Access</rights>
  </rightsList>
  <descriptions>
    <description descriptionType="Abstract">In this work, the ionic liquid 1-butyl-3-methylimidazolium thiocyanate ([BMIM][SCN]) was evaluated for the first time for its probable usage as new optical sensor reagent for the determination of several metal ions. The ionic liquid exhibited a selective and sensitive response to iron ions in acidic aqueous solutions among all of the tested metal ions. The ([BMIM][SCN]) was encapsulated in ethyl cellulose (EC) matrix in the form of continuous thin films. The effect of [BMIM][SCN] concentration and pH to iron response, the fluorescence quantum yield, the absorption, emission and excitation based characteristics of the ionic liquid in presence of Fe3+ and Fe2+ ions were investigated in both EC and [BMIM][SCN]/aqueous buffer solution mixtures. As a result, the highly sensitive, selective and rapid responding optical sensor reagent which does not need any time-consuming extraction, oxidation and reduction procedures was presented for the distinguishing determination of Fe3+ and Fe2+ in both aqueous solutions and solid thin film matrix. The ionic liquid exhibited a better emission and absorption based response for Fe3+ ions when compared with the Fe2+ ions. The molar absorptivity constant in presence of ionic liquid-based SCN- was enhanced 10 times to 1.21 x 10(4) L mol(-1) cm(-1) for Fe3+ ions in the solution phase. Linear absorption and emission-based calibration graphs were obtained for a wide concentration range of 8.0 x 10(-8) -6.2 x 10(-4)M and 8.0 x 10(-8)-6.2 x 10(-5)M for Fe3+, respectively. Limit of detection (LOD) values for absorption and emission-based methods were 2.48 x 10(-5) and 2.4 x 10(-8), respectively. The reaction is instantaneous and absorbance remains stable for over 4 months. (c) 2019 Published by Elsevier B.V.</description>
  </descriptions>
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