Adsorptive stripping voltammetric behavior of gold(III) at a hanging mercury drop electrode in the presence of 1-(2′-pyridylazo)−2-naphthol
The stripping voltammetric determination of gold(III) based on the adsorptive accumulation of the Au(III)—1-(2′-pyridylazo)−2-naphthol complex on a hanging mercury drop electrode is reported. The reduction current of the adsorbed gold complex ions is measured by differential-pulse cathodic stripping...
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| Veröffentlicht in: | Analytica chimica acta 1993-10, Vol.282 (1), p.133-137 |
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| container_title | Analytica chimica acta |
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| creator | Abu Zuhri, A.Z. El-Shahawi, M.S. Kamal, M.M. |
| description | The stripping voltammetric determination of gold(III) based on the adsorptive accumulation of the Au(III)—1-(2′-pyridylazo)−2-naphthol complex on a hanging mercury drop electrode is reported. The reduction current of the adsorbed gold complex ions is measured by differential-pulse cathodic stripping voltammetry. The peak potential is at −0.8 V vs. Ag/AgCl. The effects of various parameters (pH, ligand concentration, accumulation potential and collection time) on the response in the presence of ethanol-water (30%, v/v) and 0.5 M sodium sulphate are discussed. A linear response up to 5.0×10
−8 M and a relative standard deviation of 2.9% at 3.0×10
−8 M were obtained. The UV-visible spectrum of the complex formed was also measured. The applicability of the method to the determination of gold(I) and mixtures of gold(I) and (III) compounds was also successfully carried out. Possible interferences by trace metals on the proposed method were examined. |
| doi_str_mv | 10.1016/0003-2670(93)80361-N |
| format | Article |
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−8 M and a relative standard deviation of 2.9% at 3.0×10
−8 M were obtained. The UV-visible spectrum of the complex formed was also measured. The applicability of the method to the determination of gold(I) and mixtures of gold(I) and (III) compounds was also successfully carried out. Possible interferences by trace metals on the proposed method were examined.</description><identifier>ISSN: 0003-2670</identifier><identifier>EISSN: 1873-4324</identifier><identifier>DOI: 10.1016/0003-2670(93)80361-N</identifier><identifier>CODEN: ACACAM</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Analytical chemistry ; Chemistry ; Electrochemical methods ; Exact sciences and technology ; Gold ; Stripping voltammetry ; Waters</subject><ispartof>Analytica chimica acta, 1993-10, Vol.282 (1), p.133-137</ispartof><rights>1993</rights><rights>1994 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c461t-b0acf0f50c2ec63c462e21a67ce6fa443af2fcae8c75b949f232bc55069240593</citedby><cites>FETCH-LOGICAL-c461t-b0acf0f50c2ec63c462e21a67ce6fa443af2fcae8c75b949f232bc55069240593</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/000326709380361N$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3536,27903,27904,65309</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=3748650$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Abu Zuhri, A.Z.</creatorcontrib><creatorcontrib>El-Shahawi, M.S.</creatorcontrib><creatorcontrib>Kamal, M.M.</creatorcontrib><title>Adsorptive stripping voltammetric behavior of gold(III) at a hanging mercury drop electrode in the presence of 1-(2′-pyridylazo)−2-naphthol</title><title>Analytica chimica acta</title><description>The stripping voltammetric determination of gold(III) based on the adsorptive accumulation of the Au(III)—1-(2′-pyridylazo)−2-naphthol complex on a hanging mercury drop electrode is reported. The reduction current of the adsorbed gold complex ions is measured by differential-pulse cathodic stripping voltammetry. The peak potential is at −0.8 V vs. Ag/AgCl. The effects of various parameters (pH, ligand concentration, accumulation potential and collection time) on the response in the presence of ethanol-water (30%, v/v) and 0.5 M sodium sulphate are discussed. A linear response up to 5.0×10
−8 M and a relative standard deviation of 2.9% at 3.0×10
−8 M were obtained. The UV-visible spectrum of the complex formed was also measured. The applicability of the method to the determination of gold(I) and mixtures of gold(I) and (III) compounds was also successfully carried out. Possible interferences by trace metals on the proposed method were examined.</description><subject>Analytical chemistry</subject><subject>Chemistry</subject><subject>Electrochemical methods</subject><subject>Exact sciences and technology</subject><subject>Gold</subject><subject>Stripping voltammetry</subject><subject>Waters</subject><issn>0003-2670</issn><issn>1873-4324</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1993</creationdate><recordtype>article</recordtype><recordid>eNqFkc2K1EAUhQtRsB19Axe1EOleROsvlWQjDIM_DcO40XVxu3KrU1JJxap0Q7ty6U7wUXykeRITe5ilri738p1z4RxCnnP2ijOuXzPGZCF0xdaN3NRMal7cPCArXleyUFKoh2R1jzwmT3L-Mq-CM7UiPy_bHNM4-SPSPCU_jn7Y02MME_Q9zgdLd9jB0cdEo6P7GNr1drvdUJgo0A6G_cL3mOwhnWib4kgxoJ1SbJH6gU4d0jFhxsHiYsCLtbj9_rsYT8m3pwDf4ub2xy9RDDB2UxfDU_LIQcj47G5ekM_v3n66-lBcf3y_vbq8LqzSfCp2DKxjrmRWoNVyPgoUHHRlUTtQSoITzgLWtip3jWqckGJny5LpRihWNvKCvDz7jil-PWCeTO-zxRBgwHjIRpRNU1fi_yCXs2XD5QyqM2hTzDmhM2PyPaST4cwsNZmlA7N0YBpp_tZkbmbZizt_yBaCSzBYn--1slK1LtmMvTljOIdy9JhMtn4JtfVpjtu00f_7zx-oTqmK</recordid><startdate>19931005</startdate><enddate>19931005</enddate><creator>Abu Zuhri, A.Z.</creator><creator>El-Shahawi, M.S.</creator><creator>Kamal, M.M.</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QH</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>19931005</creationdate><title>Adsorptive stripping voltammetric behavior of gold(III) at a hanging mercury drop electrode in the presence of 1-(2′-pyridylazo)−2-naphthol</title><author>Abu Zuhri, A.Z. ; El-Shahawi, M.S. ; Kamal, M.M.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c461t-b0acf0f50c2ec63c462e21a67ce6fa443af2fcae8c75b949f232bc55069240593</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1993</creationdate><topic>Analytical chemistry</topic><topic>Chemistry</topic><topic>Electrochemical methods</topic><topic>Exact sciences and technology</topic><topic>Gold</topic><topic>Stripping voltammetry</topic><topic>Waters</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Abu Zuhri, A.Z.</creatorcontrib><creatorcontrib>El-Shahawi, M.S.</creatorcontrib><creatorcontrib>Kamal, M.M.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Aqualine</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Analytica chimica acta</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Abu Zuhri, A.Z.</au><au>El-Shahawi, M.S.</au><au>Kamal, M.M.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Adsorptive stripping voltammetric behavior of gold(III) at a hanging mercury drop electrode in the presence of 1-(2′-pyridylazo)−2-naphthol</atitle><jtitle>Analytica chimica acta</jtitle><date>1993-10-05</date><risdate>1993</risdate><volume>282</volume><issue>1</issue><spage>133</spage><epage>137</epage><pages>133-137</pages><issn>0003-2670</issn><eissn>1873-4324</eissn><coden>ACACAM</coden><abstract>The stripping voltammetric determination of gold(III) based on the adsorptive accumulation of the Au(III)—1-(2′-pyridylazo)−2-naphthol complex on a hanging mercury drop electrode is reported. The reduction current of the adsorbed gold complex ions is measured by differential-pulse cathodic stripping voltammetry. The peak potential is at −0.8 V vs. Ag/AgCl. The effects of various parameters (pH, ligand concentration, accumulation potential and collection time) on the response in the presence of ethanol-water (30%, v/v) and 0.5 M sodium sulphate are discussed. A linear response up to 5.0×10
−8 M and a relative standard deviation of 2.9% at 3.0×10
−8 M were obtained. The UV-visible spectrum of the complex formed was also measured. The applicability of the method to the determination of gold(I) and mixtures of gold(I) and (III) compounds was also successfully carried out. Possible interferences by trace metals on the proposed method were examined.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/0003-2670(93)80361-N</doi><tpages>5</tpages></addata></record> |
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| issn | 0003-2670 1873-4324 |
| language | eng |
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| source | Elsevier ScienceDirect Journals |
| subjects | Analytical chemistry Chemistry Electrochemical methods Exact sciences and technology Gold Stripping voltammetry Waters |
| title | Adsorptive stripping voltammetric behavior of gold(III) at a hanging mercury drop electrode in the presence of 1-(2′-pyridylazo)−2-naphthol |
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