Application of manganese (II) phthalocyanine synthesized in situ in the SiO2/SnO2 mixed oxide matrix for determination of dissolved oxygen by electrochemical techniques
This work describes the in situ immobilization of Mn(II) phthalocyanine (MnPc) in a porous SiO(2)/SnO(2) mixed oxide matrix obtained by the sol gel processing method. The chemically modified matrix SiO(2)/SnO(2)/MnPc, possessing an estimated amount of 8 × 10(-10) mol cm(-2) of MnPc on the surface, w...
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| Veröffentlicht in: | Talanta (Oxford) 2011-08, Vol.85 (2), p.1213-1216 |
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| creator | SANTOS, Lucas S. S LANDERS, Richard GUSHIKEM, Yoshitaka |
| description | This work describes the in situ immobilization of Mn(II) phthalocyanine (MnPc) in a porous SiO(2)/SnO(2) mixed oxide matrix obtained by the sol gel processing method. The chemically modified matrix SiO(2)/SnO(2)/MnPc, possessing an estimated amount of 8 × 10(-10) mol cm(-2) of MnPc on the surface, was used to prepare an electrode to analyze dissolved oxygen in water by an electrochemical technique. The electrode was prepared by mixing the material with ultrapure graphite and evaluated using differential pulse voltammetry. Dissolved O(2) was reduced at -0.31 V with a limit of detection (LOD) equal to 7.0 × 10(-4) mmol L(-1). A mechanism involving four electrons in O(2) reduction was determined by the rotating disk electrode technique. |
| doi_str_mv | 10.1016/j.talanta.2011.06.003 |
| format | Article |
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S ; LANDERS, Richard ; GUSHIKEM, Yoshitaka</creator><creatorcontrib>SANTOS, Lucas S. S ; LANDERS, Richard ; GUSHIKEM, Yoshitaka</creatorcontrib><description>This work describes the in situ immobilization of Mn(II) phthalocyanine (MnPc) in a porous SiO(2)/SnO(2) mixed oxide matrix obtained by the sol gel processing method. The chemically modified matrix SiO(2)/SnO(2)/MnPc, possessing an estimated amount of 8 × 10(-10) mol cm(-2) of MnPc on the surface, was used to prepare an electrode to analyze dissolved oxygen in water by an electrochemical technique. The electrode was prepared by mixing the material with ultrapure graphite and evaluated using differential pulse voltammetry. Dissolved O(2) was reduced at -0.31 V with a limit of detection (LOD) equal to 7.0 × 10(-4) mmol L(-1). A mechanism involving four electrons in O(2) reduction was determined by the rotating disk electrode technique.</description><identifier>ISSN: 0039-9140</identifier><identifier>EISSN: 1873-3573</identifier><identifier>DOI: 10.1016/j.talanta.2011.06.003</identifier><identifier>PMID: 21726761</identifier><identifier>CODEN: TLNTA2</identifier><language>eng</language><publisher>Amsterdam: Elsevier</publisher><subject>Analytical chemistry ; Chemistry ; Electrochemical methods ; Exact sciences and technology ; General, instrumentation</subject><ispartof>Talanta (Oxford), 2011-08, Vol.85 (2), p.1213-1216</ispartof><rights>2015 INIST-CNRS</rights><rights>Copyright © 2011. 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Dissolved O(2) was reduced at -0.31 V with a limit of detection (LOD) equal to 7.0 × 10(-4) mmol L(-1). 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The electrode was prepared by mixing the material with ultrapure graphite and evaluated using differential pulse voltammetry. Dissolved O(2) was reduced at -0.31 V with a limit of detection (LOD) equal to 7.0 × 10(-4) mmol L(-1). A mechanism involving four electrons in O(2) reduction was determined by the rotating disk electrode technique.</abstract><cop>Amsterdam</cop><pub>Elsevier</pub><pmid>21726761</pmid><doi>10.1016/j.talanta.2011.06.003</doi><tpages>4</tpages></addata></record> |
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| subjects | Analytical chemistry Chemistry Electrochemical methods Exact sciences and technology General, instrumentation |
| title | Application of manganese (II) phthalocyanine synthesized in situ in the SiO2/SnO2 mixed oxide matrix for determination of dissolved oxygen by electrochemical techniques |
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