On-line Electrochemical Oxidation of Cr(III) for the Determination of Total Cr by Flow Injection-Solid Phase Spectrophotometry
A novel on-line oxidation method of ultra-trace Cr(III) dissolved in natural water has been developed using a flow electrolysis cell. This method was successfully applied to the determination of the total Cr concentration by flow injection-solid phase spectrophotometry using diphenylcarbazide as a c...
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| Veröffentlicht in: | Analytical Sciences 2006, Vol.22(12), pp.1519-1524 |
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| container_title | Analytical Sciences |
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| creator | MATSUOKA, Shiro NAKATSU, Yu TAKEHARA, Kô SAPUTRO, Sulistyo YOSHIMURA, Kazuhisa |
| description | A novel on-line oxidation method of ultra-trace Cr(III) dissolved in natural water has been developed using a flow electrolysis cell. This method was successfully applied to the determination of the total Cr concentration by flow injection-solid phase spectrophotometry using diphenylcarbazide as a coloring agent. With the applied potential of 1.35 V (vs. Ag/AgCl) and the flow rate of 0.80 cm3 min-1, Cr(III) was quantitatively oxidized to Cr(VI) at room temperature. The total Cr concentration of sub-µg dm-3 in 3 - 4 samples could be determined within 1 h using an aqueous sample volume of 7.1 cm3. The analytical values of the total Cr concentration in natural water were in good agreement with those obtained by ICP-MS. The detection limit of the proposed method was 0.014 µg dm-3 (3σ, n = 7). This method could be applied to the specific determination of Cr(III) and Cr(VI) in river water samples. |
| doi_str_mv | 10.2116/analsci.22.1519 |
| format | Article |
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This method was successfully applied to the determination of the total Cr concentration by flow injection-solid phase spectrophotometry using diphenylcarbazide as a coloring agent. With the applied potential of 1.35 V (vs. Ag/AgCl) and the flow rate of 0.80 cm3 min-1, Cr(III) was quantitatively oxidized to Cr(VI) at room temperature. The total Cr concentration of sub-µg dm-3 in 3 - 4 samples could be determined within 1 h using an aqueous sample volume of 7.1 cm3. The analytical values of the total Cr concentration in natural water were in good agreement with those obtained by ICP-MS. The detection limit of the proposed method was 0.014 µg dm-3 (3σ, n = 7). This method could be applied to the specific determination of Cr(III) and Cr(VI) in river water samples.</description><identifier>ISSN: 0910-6340</identifier><identifier>EISSN: 1348-2246</identifier><identifier>DOI: 10.2116/analsci.22.1519</identifier><identifier>PMID: 17159309</identifier><language>eng</language><publisher>Japan: The Japan Society for Analytical Chemistry</publisher><subject>Chromium ; Chromium - analysis ; Chromium - chemistry ; Electrochemistry ; Electrochemistry - methods ; Electrolysis ; Flow rates ; Injection ; Oxidation ; Oxidation-Reduction ; Rivers ; Spectrophotometry ; Water - analysis ; Water Pollutants - analysis ; Water sampling</subject><ispartof>Analytical Sciences, 2006, Vol.22(12), pp.1519-1524</ispartof><rights>2006 by The Japan Society for Analytical Chemistry</rights><rights>Copyright Japan Science and Technology Agency 2006</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c622t-6a7d94de2eca170085c6cdb7497f0f9f6c2480268bf3ff315ec2775e4abf0e643</citedby><cites>FETCH-LOGICAL-c622t-6a7d94de2eca170085c6cdb7497f0f9f6c2480268bf3ff315ec2775e4abf0e643</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,1876,27903,27904</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/17159309$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>MATSUOKA, Shiro</creatorcontrib><creatorcontrib>NAKATSU, Yu</creatorcontrib><creatorcontrib>TAKEHARA, Kô</creatorcontrib><creatorcontrib>SAPUTRO, Sulistyo</creatorcontrib><creatorcontrib>YOSHIMURA, Kazuhisa</creatorcontrib><title>On-line Electrochemical Oxidation of Cr(III) for the Determination of Total Cr by Flow Injection-Solid Phase Spectrophotometry</title><title>Analytical Sciences</title><addtitle>Anal Sci</addtitle><description>A novel on-line oxidation method of ultra-trace Cr(III) dissolved in natural water has been developed using a flow electrolysis cell. This method was successfully applied to the determination of the total Cr concentration by flow injection-solid phase spectrophotometry using diphenylcarbazide as a coloring agent. With the applied potential of 1.35 V (vs. Ag/AgCl) and the flow rate of 0.80 cm3 min-1, Cr(III) was quantitatively oxidized to Cr(VI) at room temperature. The total Cr concentration of sub-µg dm-3 in 3 - 4 samples could be determined within 1 h using an aqueous sample volume of 7.1 cm3. The analytical values of the total Cr concentration in natural water were in good agreement with those obtained by ICP-MS. The detection limit of the proposed method was 0.014 µg dm-3 (3σ, n = 7). This method could be applied to the specific determination of Cr(III) and Cr(VI) in river water samples.</description><subject>Chromium</subject><subject>Chromium - analysis</subject><subject>Chromium - chemistry</subject><subject>Electrochemistry</subject><subject>Electrochemistry - methods</subject><subject>Electrolysis</subject><subject>Flow rates</subject><subject>Injection</subject><subject>Oxidation</subject><subject>Oxidation-Reduction</subject><subject>Rivers</subject><subject>Spectrophotometry</subject><subject>Water - analysis</subject><subject>Water Pollutants - analysis</subject><subject>Water sampling</subject><issn>0910-6340</issn><issn>1348-2246</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2006</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNpVkEFv0zAUgC3ExMrgzA1Z4sIO6ewXx0mOqFsh0qQibZwtx3kmrpK4OK62XvjtS2lUtIt98Pc-632EfOJsCZzLGz3objRuCbDkGS_fkAVPRZEACPmWLFjJWSJTwS7J-3HcMsahAHhHLnnOszJl5YL83QxJ5wakdx2aGLxpsXdGd3Tz7BodnR-ot3QVvlZVdU2tDzS2SG8xYujdcAYefZxmVoHWB7ru_BOthu3km16TB9-5hv5s9Yj0Yffvk13ro-8xhsMHcmGnDfDjfF-RX-u7x9WP5H7zvVp9u0-MBIiJ1HlTigYBjeY5Y0VmpGnqXJS5Zba00oAoGMiitqm1Kc_QQJ5nKHRtGUqRXpEvJ-8u-D97HKPa-n04xlNciCLLuEjzibo5USb4cQxo1S64XoeD4kwde6u5twJQx97TxOfZu697bP7zc-AJWJ-A7Rj1bzwDOkRnOnwlhPk8ms-AaXVQOKQvF22XBQ</recordid><startdate>20061201</startdate><enddate>20061201</enddate><creator>MATSUOKA, Shiro</creator><creator>NAKATSU, Yu</creator><creator>TAKEHARA, Kô</creator><creator>SAPUTRO, Sulistyo</creator><creator>YOSHIMURA, Kazuhisa</creator><general>The Japan Society for Analytical Chemistry</general><general>Japan Science and Technology Agency</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QF</scope><scope>7QO</scope><scope>7QQ</scope><scope>7SE</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>FR3</scope><scope>H8G</scope><scope>JG9</scope><scope>L7M</scope><scope>P64</scope></search><sort><creationdate>20061201</creationdate><title>On-line Electrochemical Oxidation of Cr(III) for the Determination of Total Cr by Flow Injection-Solid Phase Spectrophotometry</title><author>MATSUOKA, Shiro ; NAKATSU, Yu ; TAKEHARA, Kô ; SAPUTRO, Sulistyo ; YOSHIMURA, Kazuhisa</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c622t-6a7d94de2eca170085c6cdb7497f0f9f6c2480268bf3ff315ec2775e4abf0e643</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2006</creationdate><topic>Chromium</topic><topic>Chromium - analysis</topic><topic>Chromium - chemistry</topic><topic>Electrochemistry</topic><topic>Electrochemistry - methods</topic><topic>Electrolysis</topic><topic>Flow rates</topic><topic>Injection</topic><topic>Oxidation</topic><topic>Oxidation-Reduction</topic><topic>Rivers</topic><topic>Spectrophotometry</topic><topic>Water - analysis</topic><topic>Water Pollutants - analysis</topic><topic>Water sampling</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>MATSUOKA, Shiro</creatorcontrib><creatorcontrib>NAKATSU, Yu</creatorcontrib><creatorcontrib>TAKEHARA, Kô</creatorcontrib><creatorcontrib>SAPUTRO, Sulistyo</creatorcontrib><creatorcontrib>YOSHIMURA, Kazuhisa</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Aluminium Industry Abstracts</collection><collection>Biotechnology Research Abstracts</collection><collection>Ceramic Abstracts</collection><collection>Corrosion Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Copper Technical Reference Library</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Biotechnology and BioEngineering Abstracts</collection><jtitle>Analytical Sciences</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>MATSUOKA, Shiro</au><au>NAKATSU, Yu</au><au>TAKEHARA, Kô</au><au>SAPUTRO, Sulistyo</au><au>YOSHIMURA, Kazuhisa</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>On-line Electrochemical Oxidation of Cr(III) for the Determination of Total Cr by Flow Injection-Solid Phase Spectrophotometry</atitle><jtitle>Analytical Sciences</jtitle><addtitle>Anal Sci</addtitle><date>2006-12-01</date><risdate>2006</risdate><volume>22</volume><issue>12</issue><spage>1519</spage><epage>1524</epage><pages>1519-1524</pages><issn>0910-6340</issn><eissn>1348-2246</eissn><abstract>A novel on-line oxidation method of ultra-trace Cr(III) dissolved in natural water has been developed using a flow electrolysis cell. This method was successfully applied to the determination of the total Cr concentration by flow injection-solid phase spectrophotometry using diphenylcarbazide as a coloring agent. With the applied potential of 1.35 V (vs. Ag/AgCl) and the flow rate of 0.80 cm3 min-1, Cr(III) was quantitatively oxidized to Cr(VI) at room temperature. The total Cr concentration of sub-µg dm-3 in 3 - 4 samples could be determined within 1 h using an aqueous sample volume of 7.1 cm3. The analytical values of the total Cr concentration in natural water were in good agreement with those obtained by ICP-MS. The detection limit of the proposed method was 0.014 µg dm-3 (3σ, n = 7). This method could be applied to the specific determination of Cr(III) and Cr(VI) in river water samples.</abstract><cop>Japan</cop><pub>The Japan Society for Analytical Chemistry</pub><pmid>17159309</pmid><doi>10.2116/analsci.22.1519</doi><tpages>6</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Chromium Chromium - analysis Chromium - chemistry Electrochemistry Electrochemistry - methods Electrolysis Flow rates Injection Oxidation Oxidation-Reduction Rivers Spectrophotometry Water - analysis Water Pollutants - analysis Water sampling |
| title | On-line Electrochemical Oxidation of Cr(III) for the Determination of Total Cr by Flow Injection-Solid Phase Spectrophotometry |
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