Determination of selenium in freshwaters by cathodic stripping voltammetry after UV irradiation
An analytical method was developed for the determination of total dissolved selenium in fresh waters, using linear sweep cathodic stripping voltammetry (CSV) in combination with UV photolytic digestion. Both the CSV method, based on the electrodeposition and stripping of Cu 2Se, and the UV irradiati...
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| Veröffentlicht in: | Talanta (Oxford) 1995-06, Vol.42 (6), p.817-825 |
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| creator | Mattsson, Gunnar Nyholm, Leif Olin, Åke Örnemark, Ulf |
| description | An analytical method was developed for the determination of total dissolved selenium in fresh waters, using linear sweep cathodic stripping voltammetry (CSV) in combination with UV photolytic digestion. Both the CSV method, based on the electrodeposition and stripping of Cu
2Se, and the UV irradiation procedure were investigated in detail. In the presence of dissolved organic substances, as in freshwaters, Se(VI) is reduced to Se(IV) by UV irradiation in 0.1
M hydrochloric acid. Glucose can be used as the carbon source in samples low in natural dissolved organic carbon (DOC). The photolytic yields of Se(IV) were about 90% in both cases. Five freshwater samples were analysed for total selenium by CSV after UV photolysis, and by hydride generation atomic absorption spectrometry (HG-AAS) after oxidative digestion followed by reduction with hydrochloric acid. The results agreed well and the concentrations were in the range 70–190 ng/l., well above the detection limit of the CSV method at 2 ng/l. |
| doi_str_mv | 10.1016/0039-9140(95)01494-V |
| format | Article |
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2Se, and the UV irradiation procedure were investigated in detail. In the presence of dissolved organic substances, as in freshwaters, Se(VI) is reduced to Se(IV) by UV irradiation in 0.1
M hydrochloric acid. Glucose can be used as the carbon source in samples low in natural dissolved organic carbon (DOC). The photolytic yields of Se(IV) were about 90% in both cases. Five freshwater samples were analysed for total selenium by CSV after UV photolysis, and by hydride generation atomic absorption spectrometry (HG-AAS) after oxidative digestion followed by reduction with hydrochloric acid. The results agreed well and the concentrations were in the range 70–190 ng/l., well above the detection limit of the CSV method at 2 ng/l.</description><identifier>ISSN: 0039-9140</identifier><identifier>EISSN: 1873-3573</identifier><identifier>DOI: 10.1016/0039-9140(95)01494-V</identifier><identifier>PMID: 18966297</identifier><identifier>CODEN: TLNTA2</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Analytical chemistry ; Chemistry ; Electrochemical methods ; Exact sciences and technology</subject><ispartof>Talanta (Oxford), 1995-06, Vol.42 (6), p.817-825</ispartof><rights>1995</rights><rights>1995 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c303t-3deb8c0b8dbe499bada9d5b684dfad63186e2a1cc98d690fe5742f191e3c0f13</citedby><cites>FETCH-LOGICAL-c303t-3deb8c0b8dbe499bada9d5b684dfad63186e2a1cc98d690fe5742f191e3c0f13</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/0039-9140(95)01494-V$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=3571934$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/18966297$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Mattsson, Gunnar</creatorcontrib><creatorcontrib>Nyholm, Leif</creatorcontrib><creatorcontrib>Olin, Åke</creatorcontrib><creatorcontrib>Örnemark, Ulf</creatorcontrib><title>Determination of selenium in freshwaters by cathodic stripping voltammetry after UV irradiation</title><title>Talanta (Oxford)</title><addtitle>Talanta</addtitle><description>An analytical method was developed for the determination of total dissolved selenium in fresh waters, using linear sweep cathodic stripping voltammetry (CSV) in combination with UV photolytic digestion. Both the CSV method, based on the electrodeposition and stripping of Cu
2Se, and the UV irradiation procedure were investigated in detail. In the presence of dissolved organic substances, as in freshwaters, Se(VI) is reduced to Se(IV) by UV irradiation in 0.1
M hydrochloric acid. Glucose can be used as the carbon source in samples low in natural dissolved organic carbon (DOC). The photolytic yields of Se(IV) were about 90% in both cases. Five freshwater samples were analysed for total selenium by CSV after UV photolysis, and by hydride generation atomic absorption spectrometry (HG-AAS) after oxidative digestion followed by reduction with hydrochloric acid. The results agreed well and the concentrations were in the range 70–190 ng/l., well above the detection limit of the CSV method at 2 ng/l.</description><subject>Analytical chemistry</subject><subject>Chemistry</subject><subject>Electrochemical methods</subject><subject>Exact sciences and technology</subject><issn>0039-9140</issn><issn>1873-3573</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1995</creationdate><recordtype>article</recordtype><recordid>eNp9kctKQzEQhoMoWqtvIJKFoC6OJifnlo0g9QoFN7XbkJNMNHIuNUkrfXvTC3Xnajbf_PPzDUJnlNxQQotbQhhPOM3IFc-vCc14lkz30IBWJUtYXrJ9NNghR-jY-y9CSMoIO0RHtOJFkfJygMQDBHCt7WSwfYd7gz000Nl5i22HjQP_-SMj4XG9xEqGz15bhX1wdjaz3Qde9E2QbQvBLbE0EcTvU2ydk9quE0_QgZGNh9PtHKLJ0-Nk9JKM355fR_fjRMVGIWEa6kqRutI1ZJzXUkuu87qoMm2kLhitCkglVYpXuuDEQF5mqaGcAlPEUDZEl5vYmeu_5-CDaK1X0DSyg37uRclYlcaYNJLZhlSu996BETNnW-mWghKxEitW1sTKmuC5WIsV07h2vj0wr1vQf0tbkxG42ALSK9kYJztl_Y6LH6GcZRG722AQZSwsOOGVhU6Btg5UELq3_xf5BQwHlvM</recordid><startdate>199506</startdate><enddate>199506</enddate><creator>Mattsson, Gunnar</creator><creator>Nyholm, Leif</creator><creator>Olin, Åke</creator><creator>Örnemark, Ulf</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>199506</creationdate><title>Determination of selenium in freshwaters by cathodic stripping voltammetry after UV irradiation</title><author>Mattsson, Gunnar ; Nyholm, Leif ; Olin, Åke ; Örnemark, Ulf</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c303t-3deb8c0b8dbe499bada9d5b684dfad63186e2a1cc98d690fe5742f191e3c0f13</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1995</creationdate><topic>Analytical chemistry</topic><topic>Chemistry</topic><topic>Electrochemical methods</topic><topic>Exact sciences and technology</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Mattsson, Gunnar</creatorcontrib><creatorcontrib>Nyholm, Leif</creatorcontrib><creatorcontrib>Olin, Åke</creatorcontrib><creatorcontrib>Örnemark, Ulf</creatorcontrib><collection>Pascal-Francis</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Talanta (Oxford)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Mattsson, Gunnar</au><au>Nyholm, Leif</au><au>Olin, Åke</au><au>Örnemark, Ulf</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Determination of selenium in freshwaters by cathodic stripping voltammetry after UV irradiation</atitle><jtitle>Talanta (Oxford)</jtitle><addtitle>Talanta</addtitle><date>1995-06</date><risdate>1995</risdate><volume>42</volume><issue>6</issue><spage>817</spage><epage>825</epage><pages>817-825</pages><issn>0039-9140</issn><eissn>1873-3573</eissn><coden>TLNTA2</coden><abstract>An analytical method was developed for the determination of total dissolved selenium in fresh waters, using linear sweep cathodic stripping voltammetry (CSV) in combination with UV photolytic digestion. Both the CSV method, based on the electrodeposition and stripping of Cu
2Se, and the UV irradiation procedure were investigated in detail. In the presence of dissolved organic substances, as in freshwaters, Se(VI) is reduced to Se(IV) by UV irradiation in 0.1
M hydrochloric acid. Glucose can be used as the carbon source in samples low in natural dissolved organic carbon (DOC). The photolytic yields of Se(IV) were about 90% in both cases. Five freshwater samples were analysed for total selenium by CSV after UV photolysis, and by hydride generation atomic absorption spectrometry (HG-AAS) after oxidative digestion followed by reduction with hydrochloric acid. The results agreed well and the concentrations were in the range 70–190 ng/l., well above the detection limit of the CSV method at 2 ng/l.</abstract><cop>Amsterdam</cop><cop>Oxford</cop><pub>Elsevier B.V</pub><pmid>18966297</pmid><doi>10.1016/0039-9140(95)01494-V</doi><tpages>9</tpages></addata></record> |
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| subjects | Analytical chemistry Chemistry Electrochemical methods Exact sciences and technology |
| title | Determination of selenium in freshwaters by cathodic stripping voltammetry after UV irradiation |
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