Development of a new sequential injection in-line cloud point extraction system for flame atomic absorption spectrometric determination of manganese in food samples
A preconcentration method for manganese determination by sequential injection cloud point extraction with subsequent detection by flame atomic absorption spectrometry (FAAS) has been developed. The enrichment of Mn was performed after a preliminary on-line cloud point extraction and entrapment of ma...
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| Veröffentlicht in: | Talanta (Oxford) 2008-10, Vol.77 (1), p.388-393 |
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| creator | Lemos, Valfredo Azevedo Baliza, Patrícia Xavier de Carvalho, Anaildes Lago Oliveira, Rafael Vasconcelos Teixeira, Leonardo Sena Gomes Bezerra, Marcos Almeida |
| description | A preconcentration method for manganese determination by sequential injection cloud point extraction with subsequent detection by flame atomic absorption spectrometry (FAAS) has been developed. The enrichment of Mn was performed after a preliminary on-line cloud point extraction and entrapment of manganese-containing surfactant aggregated within a minicolumn packed with cotton. The laboratory-made reagent 4-(5′-bromo-2′-thiazolylazo)orcinol (Br-TAO) and the surfactant Triton X-114 were used for cloud point extraction. The manganese ions were eluted with sulphuric acid solution and directly introduced into the FAAS. Chemical and flow variables affecting the preconcentration were studied. Using a sample volume of 2.80
mL the limit of detection and enrichment factor were calculated to be 0.5
μg
L
−1 and 14, respectively. The sample frequency is 48
h
−1, considering a total run cycle of 75
s. The accuracy of the proposed method has been demonstrated by the analysis of the certified reference biological materials rice flour and tomato leaves. The method has been applied to determination of manganese in food samples. |
| doi_str_mv | 10.1016/j.talanta.2008.06.046 |
| format | Article |
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mL the limit of detection and enrichment factor were calculated to be 0.5
μg
L
−1 and 14, respectively. The sample frequency is 48
h
−1, considering a total run cycle of 75
s. The accuracy of the proposed method has been demonstrated by the analysis of the certified reference biological materials rice flour and tomato leaves. The method has been applied to determination of manganese in food samples.</description><identifier>ISSN: 0039-9140</identifier><identifier>EISSN: 1873-3573</identifier><identifier>DOI: 10.1016/j.talanta.2008.06.046</identifier><identifier>PMID: 18804650</identifier><identifier>CODEN: TLNTA2</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Analytical chemistry ; Br-TAO ; Chemistry ; Cloud point extraction ; Exact sciences and technology ; Food Analysis - instrumentation ; Food Analysis - methods ; Hydrogen-Ion Concentration ; Ions - chemistry ; Manganese ; Manganese - analysis ; Molecular Structure ; Preconcentration ; Sequential injection ; Spectrometric and optical methods ; Spectrophotometry, Atomic - instrumentation ; Spectrophotometry, Atomic - methods</subject><ispartof>Talanta (Oxford), 2008-10, Vol.77 (1), p.388-393</ispartof><rights>2008 Elsevier B.V.</rights><rights>2008 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c393t-e4f644a676eb9cdae8e954af32da50c5847d0fe1525e119a1c9682201c50ca4f3</citedby><cites>FETCH-LOGICAL-c393t-e4f644a676eb9cdae8e954af32da50c5847d0fe1525e119a1c9682201c50ca4f3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0039914008005067$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65534</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=20759135$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/18804650$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Lemos, Valfredo Azevedo</creatorcontrib><creatorcontrib>Baliza, Patrícia Xavier</creatorcontrib><creatorcontrib>de Carvalho, Anaildes Lago</creatorcontrib><creatorcontrib>Oliveira, Rafael Vasconcelos</creatorcontrib><creatorcontrib>Teixeira, Leonardo Sena Gomes</creatorcontrib><creatorcontrib>Bezerra, Marcos Almeida</creatorcontrib><title>Development of a new sequential injection in-line cloud point extraction system for flame atomic absorption spectrometric determination of manganese in food samples</title><title>Talanta (Oxford)</title><addtitle>Talanta</addtitle><description>A preconcentration method for manganese determination by sequential injection cloud point extraction with subsequent detection by flame atomic absorption spectrometry (FAAS) has been developed. The enrichment of Mn was performed after a preliminary on-line cloud point extraction and entrapment of manganese-containing surfactant aggregated within a minicolumn packed with cotton. The laboratory-made reagent 4-(5′-bromo-2′-thiazolylazo)orcinol (Br-TAO) and the surfactant Triton X-114 were used for cloud point extraction. The manganese ions were eluted with sulphuric acid solution and directly introduced into the FAAS. Chemical and flow variables affecting the preconcentration were studied. Using a sample volume of 2.80
mL the limit of detection and enrichment factor were calculated to be 0.5
μg
L
−1 and 14, respectively. The sample frequency is 48
h
−1, considering a total run cycle of 75
s. The accuracy of the proposed method has been demonstrated by the analysis of the certified reference biological materials rice flour and tomato leaves. The method has been applied to determination of manganese in food samples.</description><subject>Analytical chemistry</subject><subject>Br-TAO</subject><subject>Chemistry</subject><subject>Cloud point extraction</subject><subject>Exact sciences and technology</subject><subject>Food Analysis - instrumentation</subject><subject>Food Analysis - methods</subject><subject>Hydrogen-Ion Concentration</subject><subject>Ions - chemistry</subject><subject>Manganese</subject><subject>Manganese - analysis</subject><subject>Molecular Structure</subject><subject>Preconcentration</subject><subject>Sequential injection</subject><subject>Spectrometric and optical methods</subject><subject>Spectrophotometry, Atomic - instrumentation</subject><subject>Spectrophotometry, Atomic - methods</subject><issn>0039-9140</issn><issn>1873-3573</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkcuO1TAQRCMEYi4DnwDyBnYJ7TjOY4XQ8JRGYgNrq6_TQb7yI9i-w8z_8KF4SARLVrZcp7usqqp6zqHhwPvXpyajRZ-xaQHGBvoGuv5BdeDjIGohB_GwOgCIqZ54BxfVk5ROANAKEI-rCz6OhZZwqH69oxuyYXXkMwsLQ-bpJ0v041weDFpm_Il0NsGXW22NJ6ZtOM9sDaZM0G2OuMnpLmVybAmRLRYdMczBGc3wmEJcN2Qtq2JwlGMRZsoUnfH4RyveDv139JSoWJU9YWYJ3WopPa0eLWgTPdvPy-rbh_dfrz7V118-fr56e11rMYlcU7f0XYf90NNx0jPSSJPscBHtjBK0HLthhoW4bCVxPiHXUz-2LXBdVOwWcVm92vauMZQAUlbOJE225EzhnFQ_yQlkNxRQbqCOIaVIi1qjcRjvFAd1X486qb0edV-Pgl6VwMvci93gfHQ0_5va-yjAyx3ApNEuEb026S_XwiAnLmTh3mwclThuDEWVtCGvaTaxZKzmYP7zld_QtLW5</recordid><startdate>20081019</startdate><enddate>20081019</enddate><creator>Lemos, Valfredo Azevedo</creator><creator>Baliza, Patrícia Xavier</creator><creator>de Carvalho, Anaildes Lago</creator><creator>Oliveira, Rafael Vasconcelos</creator><creator>Teixeira, Leonardo Sena Gomes</creator><creator>Bezerra, Marcos Almeida</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><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>7X8</scope></search><sort><creationdate>20081019</creationdate><title>Development of a new sequential injection in-line cloud point extraction system for flame atomic absorption spectrometric determination of manganese in food samples</title><author>Lemos, Valfredo Azevedo ; Baliza, Patrícia Xavier ; de Carvalho, Anaildes Lago ; Oliveira, Rafael Vasconcelos ; Teixeira, Leonardo Sena Gomes ; Bezerra, Marcos Almeida</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c393t-e4f644a676eb9cdae8e954af32da50c5847d0fe1525e119a1c9682201c50ca4f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2008</creationdate><topic>Analytical chemistry</topic><topic>Br-TAO</topic><topic>Chemistry</topic><topic>Cloud point extraction</topic><topic>Exact sciences and technology</topic><topic>Food Analysis - instrumentation</topic><topic>Food Analysis - methods</topic><topic>Hydrogen-Ion Concentration</topic><topic>Ions - chemistry</topic><topic>Manganese</topic><topic>Manganese - analysis</topic><topic>Molecular Structure</topic><topic>Preconcentration</topic><topic>Sequential injection</topic><topic>Spectrometric and optical methods</topic><topic>Spectrophotometry, Atomic - instrumentation</topic><topic>Spectrophotometry, Atomic - methods</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Lemos, Valfredo Azevedo</creatorcontrib><creatorcontrib>Baliza, Patrícia Xavier</creatorcontrib><creatorcontrib>de Carvalho, Anaildes Lago</creatorcontrib><creatorcontrib>Oliveira, Rafael Vasconcelos</creatorcontrib><creatorcontrib>Teixeira, Leonardo Sena Gomes</creatorcontrib><creatorcontrib>Bezerra, Marcos Almeida</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</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>Lemos, Valfredo Azevedo</au><au>Baliza, Patrícia Xavier</au><au>de Carvalho, Anaildes Lago</au><au>Oliveira, Rafael Vasconcelos</au><au>Teixeira, Leonardo Sena Gomes</au><au>Bezerra, Marcos Almeida</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Development of a new sequential injection in-line cloud point extraction system for flame atomic absorption spectrometric determination of manganese in food samples</atitle><jtitle>Talanta (Oxford)</jtitle><addtitle>Talanta</addtitle><date>2008-10-19</date><risdate>2008</risdate><volume>77</volume><issue>1</issue><spage>388</spage><epage>393</epage><pages>388-393</pages><issn>0039-9140</issn><eissn>1873-3573</eissn><coden>TLNTA2</coden><abstract>A preconcentration method for manganese determination by sequential injection cloud point extraction with subsequent detection by flame atomic absorption spectrometry (FAAS) has been developed. The enrichment of Mn was performed after a preliminary on-line cloud point extraction and entrapment of manganese-containing surfactant aggregated within a minicolumn packed with cotton. The laboratory-made reagent 4-(5′-bromo-2′-thiazolylazo)orcinol (Br-TAO) and the surfactant Triton X-114 were used for cloud point extraction. The manganese ions were eluted with sulphuric acid solution and directly introduced into the FAAS. Chemical and flow variables affecting the preconcentration were studied. Using a sample volume of 2.80
mL the limit of detection and enrichment factor were calculated to be 0.5
μg
L
−1 and 14, respectively. The sample frequency is 48
h
−1, considering a total run cycle of 75
s. The accuracy of the proposed method has been demonstrated by the analysis of the certified reference biological materials rice flour and tomato leaves. The method has been applied to determination of manganese in food samples.</abstract><cop>Amsterdam</cop><cop>Oxford</cop><pub>Elsevier B.V</pub><pmid>18804650</pmid><doi>10.1016/j.talanta.2008.06.046</doi><tpages>6</tpages></addata></record> |
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| ispartof | Talanta (Oxford), 2008-10, Vol.77 (1), p.388-393 |
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| subjects | Analytical chemistry Br-TAO Chemistry Cloud point extraction Exact sciences and technology Food Analysis - instrumentation Food Analysis - methods Hydrogen-Ion Concentration Ions - chemistry Manganese Manganese - analysis Molecular Structure Preconcentration Sequential injection Spectrometric and optical methods Spectrophotometry, Atomic - instrumentation Spectrophotometry, Atomic - methods |
| title | Development of a new sequential injection in-line cloud point extraction system for flame atomic absorption spectrometric determination of manganese in food samples |
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