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Sensitive determination of cadmium in water samples by room temperature ionic liquid-based preconcentration and electrothermal atomic absorption spectrometry
A sensitive preconcentration methodology for Cd determination at trace levels in water samples was developed in this work. 1-Butyl-3-methylimidazolium hexafluorophosphate ([C 4MIM][PF 6]) room temperature ionic liquid (RTIL) was successfully used for Cd preconcentration, as cadmium-2–(5-bromo-2-pyri...
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| Published in: | Analytica chimica acta 2008-10, Vol.628 (1), p.41-48 |
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| cites | cdi_FETCH-LOGICAL-c455t-f5a8bbd36d25ab888f059e719638a7a07b6daac6aaa520c4a4ff7eed6122dbda3 |
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| container_start_page | 41 |
| container_title | Analytica chimica acta |
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| creator | Martinis, Estefanía M. Olsina, Roberto A. Altamirano, Jorgelina C. Wuilloud, Rodolfo G. |
| description | A sensitive preconcentration methodology for Cd determination at trace levels in water samples was developed in this work. 1-Butyl-3-methylimidazolium hexafluorophosphate ([C
4MIM][PF
6]) room temperature ionic liquid (RTIL) was successfully used for Cd preconcentration, as cadmium-2–(5-bromo-2-pyridylazo)-5-diethylaminophenol complex [Cd–5-Br-PADAP]. Subsequently, Cd was back-extracted from the RTIL phase with 500
μL of 0.5
mol
L
−1 nitric acid and determined by electrothermal atomic absorption spectrometry (ETAAS). A preconcentration factor of 40 was achieved with 20
mL of sample. The limit of detection (LOD) obtained under optimum conditions was 3
ng
L
−1 and the relative standard deviation (R.S.D.) for 10 replicates at 1
μg
L
−1 Cd
2+ concentration level was 3.5%, calculated at peak heights. The calibration graph was linear from concentration levels near the detection limits up to at least 5
μg
L
−1. A correlation coefficient of 0.9997 was achieved. Validation of the methodology was performed by standard addition method and analysis of certified reference material (CRM). The method was successfully applied to the determination of Cd in river and tap water samples. |
| doi_str_mv | 10.1016/j.aca.2008.09.001 |
| format | article |
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4MIM][PF
6]) room temperature ionic liquid (RTIL) was successfully used for Cd preconcentration, as cadmium-2–(5-bromo-2-pyridylazo)-5-diethylaminophenol complex [Cd–5-Br-PADAP]. Subsequently, Cd was back-extracted from the RTIL phase with 500
μL of 0.5
mol
L
−1 nitric acid and determined by electrothermal atomic absorption spectrometry (ETAAS). A preconcentration factor of 40 was achieved with 20
mL of sample. The limit of detection (LOD) obtained under optimum conditions was 3
ng
L
−1 and the relative standard deviation (R.S.D.) for 10 replicates at 1
μg
L
−1 Cd
2+ concentration level was 3.5%, calculated at peak heights. The calibration graph was linear from concentration levels near the detection limits up to at least 5
μg
L
−1. A correlation coefficient of 0.9997 was achieved. Validation of the methodology was performed by standard addition method and analysis of certified reference material (CRM). The method was successfully applied to the determination of Cd in river and tap water samples.</description><identifier>ISSN: 0003-2670</identifier><identifier>EISSN: 1873-4324</identifier><identifier>DOI: 10.1016/j.aca.2008.09.001</identifier><identifier>CODEN: ACACAM</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>1-Butyl-3-methylimidazolium hexafluorophosphate ; Analytical chemistry ; Cadmium ; Chemistry ; Exact sciences and technology ; Freshwater ; Preconcentration ; Room temperature ionic liquid ; Spectrometric and optical methods</subject><ispartof>Analytica chimica acta, 2008-10, Vol.628 (1), p.41-48</ispartof><rights>2008 Elsevier B.V.</rights><rights>2008 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c455t-f5a8bbd36d25ab888f059e719638a7a07b6daac6aaa520c4a4ff7eed6122dbda3</citedby><cites>FETCH-LOGICAL-c455t-f5a8bbd36d25ab888f059e719638a7a07b6daac6aaa520c4a4ff7eed6122dbda3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>315,786,790,27957,27958</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=20748138$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Martinis, Estefanía M.</creatorcontrib><creatorcontrib>Olsina, Roberto A.</creatorcontrib><creatorcontrib>Altamirano, Jorgelina C.</creatorcontrib><creatorcontrib>Wuilloud, Rodolfo G.</creatorcontrib><title>Sensitive determination of cadmium in water samples by room temperature ionic liquid-based preconcentration and electrothermal atomic absorption spectrometry</title><title>Analytica chimica acta</title><description>A sensitive preconcentration methodology for Cd determination at trace levels in water samples was developed in this work. 1-Butyl-3-methylimidazolium hexafluorophosphate ([C
4MIM][PF
6]) room temperature ionic liquid (RTIL) was successfully used for Cd preconcentration, as cadmium-2–(5-bromo-2-pyridylazo)-5-diethylaminophenol complex [Cd–5-Br-PADAP]. Subsequently, Cd was back-extracted from the RTIL phase with 500
μL of 0.5
mol
L
−1 nitric acid and determined by electrothermal atomic absorption spectrometry (ETAAS). A preconcentration factor of 40 was achieved with 20
mL of sample. The limit of detection (LOD) obtained under optimum conditions was 3
ng
L
−1 and the relative standard deviation (R.S.D.) for 10 replicates at 1
μg
L
−1 Cd
2+ concentration level was 3.5%, calculated at peak heights. The calibration graph was linear from concentration levels near the detection limits up to at least 5
μg
L
−1. A correlation coefficient of 0.9997 was achieved. Validation of the methodology was performed by standard addition method and analysis of certified reference material (CRM). The method was successfully applied to the determination of Cd in river and tap water samples.</description><subject>1-Butyl-3-methylimidazolium hexafluorophosphate</subject><subject>Analytical chemistry</subject><subject>Cadmium</subject><subject>Chemistry</subject><subject>Exact sciences and technology</subject><subject>Freshwater</subject><subject>Preconcentration</subject><subject>Room temperature ionic liquid</subject><subject>Spectrometric and optical methods</subject><issn>0003-2670</issn><issn>1873-4324</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><recordid>eNqFkcGO1DAQRCMEEsPCB3DzBW4JbcdJHHFCKxaQVuIAnK2O3REexXHWdhbNx_CveHZWHOHUavWraqmqql5zaDjw_t2xQYONAFANjA0Af1IduBraWrZCPq0OANDWoh_gefUipWNZBQd5qH5_ozW57O6JWcoUvVsxu7CyMDOD1rvdM7eyX1huLKHfFkpsOrEYgmeZ_EYR8x6JFY0zbHF3u7P1hIks2yKZsBpac7x44moZLWRyDPln-YULwxx80eGUQtweoLQ9AJ5yPL2sns24JHr1OK-qHzcfv19_rm-_fvpy_eG2NrLrcj13qKbJtr0VHU5KqRm6kQY-9q3CAWGYeotoekTsBBiJcp4HIttzIexksb2q3l58txjudkpZe5cMLQuuFPak266TIAT8F-SjVFJKVUB-AU0MKUWa9Radx3jSHPS5MX3UpTF9bkzDqEtjRfPm0RyTwWWOuBqX_goFDFLx9uz9_sJRieTeUdTJOCpBW1cSz9oG948vfwDa2LFr</recordid><startdate>20081017</startdate><enddate>20081017</enddate><creator>Martinis, Estefanía M.</creator><creator>Olsina, Roberto A.</creator><creator>Altamirano, Jorgelina C.</creator><creator>Wuilloud, Rodolfo G.</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QH</scope><scope>7TV</scope><scope>7U7</scope><scope>7UA</scope><scope>C1K</scope><scope>F1W</scope><scope>H97</scope><scope>L.G</scope><scope>7U5</scope><scope>8FD</scope><scope>L7M</scope></search><sort><creationdate>20081017</creationdate><title>Sensitive determination of cadmium in water samples by room temperature ionic liquid-based preconcentration and electrothermal atomic absorption spectrometry</title><author>Martinis, Estefanía M. ; Olsina, Roberto A. ; Altamirano, Jorgelina C. ; Wuilloud, Rodolfo G.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c455t-f5a8bbd36d25ab888f059e719638a7a07b6daac6aaa520c4a4ff7eed6122dbda3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2008</creationdate><topic>1-Butyl-3-methylimidazolium hexafluorophosphate</topic><topic>Analytical chemistry</topic><topic>Cadmium</topic><topic>Chemistry</topic><topic>Exact sciences and technology</topic><topic>Freshwater</topic><topic>Preconcentration</topic><topic>Room temperature ionic liquid</topic><topic>Spectrometric and optical methods</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Martinis, Estefanía M.</creatorcontrib><creatorcontrib>Olsina, Roberto A.</creatorcontrib><creatorcontrib>Altamirano, Jorgelina C.</creatorcontrib><creatorcontrib>Wuilloud, Rodolfo G.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Aqualine</collection><collection>Pollution Abstracts</collection><collection>Toxicology Abstracts</collection><collection>Water Resources Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 3: Aquatic Pollution & Environmental Quality</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Analytica chimica acta</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Martinis, Estefanía M.</au><au>Olsina, Roberto A.</au><au>Altamirano, Jorgelina C.</au><au>Wuilloud, Rodolfo G.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Sensitive determination of cadmium in water samples by room temperature ionic liquid-based preconcentration and electrothermal atomic absorption spectrometry</atitle><jtitle>Analytica chimica acta</jtitle><date>2008-10-17</date><risdate>2008</risdate><volume>628</volume><issue>1</issue><spage>41</spage><epage>48</epage><pages>41-48</pages><issn>0003-2670</issn><eissn>1873-4324</eissn><coden>ACACAM</coden><notes>ObjectType-Article-1</notes><notes>SourceType-Scholarly Journals-1</notes><notes>ObjectType-Feature-2</notes><notes>content type line 23</notes><notes>ObjectType-Article-2</notes><notes>ObjectType-Feature-1</notes><abstract>A sensitive preconcentration methodology for Cd determination at trace levels in water samples was developed in this work. 1-Butyl-3-methylimidazolium hexafluorophosphate ([C
4MIM][PF
6]) room temperature ionic liquid (RTIL) was successfully used for Cd preconcentration, as cadmium-2–(5-bromo-2-pyridylazo)-5-diethylaminophenol complex [Cd–5-Br-PADAP]. Subsequently, Cd was back-extracted from the RTIL phase with 500
μL of 0.5
mol
L
−1 nitric acid and determined by electrothermal atomic absorption spectrometry (ETAAS). A preconcentration factor of 40 was achieved with 20
mL of sample. The limit of detection (LOD) obtained under optimum conditions was 3
ng
L
−1 and the relative standard deviation (R.S.D.) for 10 replicates at 1
μg
L
−1 Cd
2+ concentration level was 3.5%, calculated at peak heights. The calibration graph was linear from concentration levels near the detection limits up to at least 5
μg
L
−1. A correlation coefficient of 0.9997 was achieved. Validation of the methodology was performed by standard addition method and analysis of certified reference material (CRM). The method was successfully applied to the determination of Cd in river and tap water samples.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.aca.2008.09.001</doi><tpages>8</tpages></addata></record> |
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| language | eng |
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| source | ScienceDirect Freedom Collection |
| subjects | 1-Butyl-3-methylimidazolium hexafluorophosphate Analytical chemistry Cadmium Chemistry Exact sciences and technology Freshwater Preconcentration Room temperature ionic liquid Spectrometric and optical methods |
| title | Sensitive determination of cadmium in water samples by room temperature ionic liquid-based preconcentration and electrothermal atomic absorption spectrometry |
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