Modification of a Reaction Vessel for the Determination of Total Mercury in Hair by Cold Vapor Atomic Absorption Spectrometry
A classical cold vapor atomic absorption spectrometric (CVAAS) method for the determination of total mercury in blood has been previously adapted for application to samples of human hair. The reaction vessel specified in the original adaptation was, however, large and difficult to use with small hai...
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| Veröffentlicht in: | Biological trace element research 2009-09, Vol.130 (3), p.210-217 |
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| creator | Pereira, Eduardo F. SouzaDe, Jurandir Rodrigues |
| description | A classical cold vapor atomic absorption spectrometric (CVAAS) method for the determination of total mercury in blood has been previously adapted for application to samples of human hair. The reaction vessel specified in the original adaptation was, however, large and difficult to use with small hair samples. In the present study, the reaction vessel has been modified and reduced in size and the protocols have been optimized in order to provide an analytical method that is more efficient, less time-consuming, and gives lower blank values than the original adaptation. The optimized method was validated by multiple, independent, replicated assays of certified reference hair samples, and the mean recovery obtained (98.7%) indicated an efficient performance of the digestion and detection processes. The method was applied to the assay of 144 hair samples derived from populations that had or had not been exposed to mercury from environmental sources. The results from all of the samples analyzed were consistent with those published previously for similar samples. |
| doi_str_mv | 10.1007/s12011-009-8332-y |
| format | Article |
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The results from all of the samples analyzed were consistent with those published previously for similar samples.</description><subject>Absorption</subject><subject>Analytic Sample Preparation Methods - instrumentation</subject><subject>Atomic absorption spectroscopy</subject><subject>Biochemistry</subject><subject>Biomedical and Life Sciences</subject><subject>Biotechnology</subject><subject>Blood</subject><subject>Brazil</subject><subject>Hair</subject><subject>Hair - chemistry</subject><subject>Humans</subject><subject>Life Sciences</subject><subject>Mercury</subject><subject>Mercury - analysis</subject><subject>Mercury - standards</subject><subject>Mercury Poisoning - diagnosis</subject><subject>Nutrition</subject><subject>Oncology</subject><subject>Reference Standards</subject><subject>Sensitivity and Specificity</subject><subject>Spectral analysis</subject><subject>Spectrometry</subject><subject>Spectrophotometry, Atomic - methods</subject><subject>Spectrum analysis</subject><subject>Studies</subject><subject>Volatilization</subject><issn>0163-4984</issn><issn>1559-0720</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNp1kMFu1DAQhi1ERZeWB-CCLO6BGdtZx8fVUihSK6R21atlOxNItYmD7T3kwLuTdlf0xGk0mu__R_oYe4_wCQH054wCECsAUzVSimp-xVZY16YCLeA1WwGuZaVMo87Z25wfAVALI9-wczQClTTrFftzG9u-64MrfRx57Ljjd-TC8_ZAOdOedzHx8ov4FyqUhn78h-5icXt-Sykc0sz7kV-7PnE_823ct_zBTUtwU-LQB77xOabpOXg_USgpDlTSfMnOOrfP9O40L9ju69Vue13d_Pj2fbu5qYIUWCpda-frAAgKWsDOr4MKGETbSu3r2qtA5NGrum20MaHxRlLXOd_COjgt5AX7eKydUvx9oFzsYzykcfloBTYKldBqgfAIhRRzTtTZKfWDS7NFsE-67VG3XXTbJ912XjIfTsUHP1D7kjj5XQBxBPJyGn9Sevn8_9a_mn6NBg</recordid><startdate>20090901</startdate><enddate>20090901</enddate><creator>Pereira, Eduardo F.</creator><creator>SouzaDe, Jurandir Rodrigues</creator><general>Humana Press Inc</general><general>Springer Nature B.V</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>3V.</scope><scope>7QH</scope><scope>7QP</scope><scope>7TN</scope><scope>7U7</scope><scope>7UA</scope><scope>7X7</scope><scope>7XB</scope><scope>88A</scope><scope>88E</scope><scope>88I</scope><scope>8AO</scope><scope>8FE</scope><scope>8FH</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BHPHI</scope><scope>BKSAR</scope><scope>C1K</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>F1W</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>H97</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>L.G</scope><scope>LK8</scope><scope>M0S</scope><scope>M1P</scope><scope>M2P</scope><scope>M7P</scope><scope>PCBAR</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>Q9U</scope></search><sort><creationdate>20090901</creationdate><title>Modification of a Reaction Vessel for the Determination of Total Mercury in Hair by Cold Vapor Atomic Absorption Spectrometry</title><author>Pereira, Eduardo F. ; SouzaDe, Jurandir Rodrigues</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c321t-757ab5c01040d01fb6c4c1c2dd37b55b4ceeb1b45d8799c8b93effabd06ca723</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2009</creationdate><topic>Absorption</topic><topic>Analytic Sample Preparation Methods - 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The reaction vessel specified in the original adaptation was, however, large and difficult to use with small hair samples. In the present study, the reaction vessel has been modified and reduced in size and the protocols have been optimized in order to provide an analytical method that is more efficient, less time-consuming, and gives lower blank values than the original adaptation. The optimized method was validated by multiple, independent, replicated assays of certified reference hair samples, and the mean recovery obtained (98.7%) indicated an efficient performance of the digestion and detection processes. The method was applied to the assay of 144 hair samples derived from populations that had or had not been exposed to mercury from environmental sources. The results from all of the samples analyzed were consistent with those published previously for similar samples.</abstract><cop>New York</cop><pub>Humana Press Inc</pub><pmid>19214396</pmid><doi>10.1007/s12011-009-8332-y</doi><tpages>8</tpages></addata></record> |
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| subjects | Absorption Analytic Sample Preparation Methods - instrumentation Atomic absorption spectroscopy Biochemistry Biomedical and Life Sciences Biotechnology Blood Brazil Hair Hair - chemistry Humans Life Sciences Mercury Mercury - analysis Mercury - standards Mercury Poisoning - diagnosis Nutrition Oncology Reference Standards Sensitivity and Specificity Spectral analysis Spectrometry Spectrophotometry, Atomic - methods Spectrum analysis Studies Volatilization |
| title | Modification of a Reaction Vessel for the Determination of Total Mercury in Hair by Cold Vapor Atomic Absorption Spectrometry |
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