Use of aqueous slurry sampling for the determination of lead in human hair samples by electrothermal atomic absorption spectrometry
A method for the determination of lead in human hair slurries by electrothermal atomic absorption spectrometry was optimized. Particle size reduction was achieved with a vibrational mill ball equipped with zirconia cups, 20 min being sufficient grinding time to achieve an adequate particle diameter...
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| Veröffentlicht in: | Talanta (Oxford) 1996-07, Vol.43 (7), p.1099-1107 |
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| container_title | Talanta (Oxford) |
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| creator | BERMEJOBARRERA, P MOREDAPINEIRO, A ROMEROBARBEITO, T MOREDAPINEIRO, J BERMEJOBARRERA, A |
| description | A method for the determination of lead in human hair slurries by electrothermal atomic absorption spectrometry was optimized. Particle size reduction was achieved with a vibrational mill ball equipped with zirconia cups, 20 min being sufficient grinding time to achieve an adequate particle diameter ( |
| doi_str_mv | 10.1016/0039-9140(96)01868-1 |
| format | Article |
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3)
2 at optimum concentrations of 20 and 25 mg l
−1 respectively was found to be satisfactory for stabilizing lead at 1100 °C. A limit of detection of 0.21 mg kg
−1 was obtained. The limit of detection can be reduced to 0.05 mg kg
−1 without loss of analytical performance by increasing four-fold the amount of hair sample. Accuracy was studied by analysis of a CRM 397 human hair reference material with a certified lead content of 33.0 ± 1.2 mg Pb kg
−1. The standard addition method was used for the determination of lead in hair samples from healthy people, the levels being between 2.3 and 35.5 mg kg
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3)
2 at optimum concentrations of 20 and 25 mg l
−1 respectively was found to be satisfactory for stabilizing lead at 1100 °C. A limit of detection of 0.21 mg kg
−1 was obtained. The limit of detection can be reduced to 0.05 mg kg
−1 without loss of analytical performance by increasing four-fold the amount of hair sample. Accuracy was studied by analysis of a CRM 397 human hair reference material with a certified lead content of 33.0 ± 1.2 mg Pb kg
−1. The standard addition method was used for the determination of lead in hair samples from healthy people, the levels being between 2.3 and 35.5 mg kg
−1.</description><subject>Analytical, structural and metabolic biochemistry</subject><subject>Atomic absorption spectrometry</subject><subject>Biological and medical sciences</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Hair</subject><subject>Inorganic compounds</subject><subject>Lead</subject><subject>Other biological molecules</subject><subject>Slurry sampling</subject><issn>0039-9140</issn><issn>1873-3573</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1996</creationdate><recordtype>article</recordtype><recordid>eNp9kMFuFSEUhomxsdfqGxjDwkRdjMIwMMzGxDRqmzRxY9eEC2csBoaRM2Ny131xmd6bunMDIXz_gf8j5BVnHzjj6iNjYmgG3rF3g3rPuFa64U_IjuteNEL24inZPSLn5DniL8ZYK5h4Rs65HpSSWu3I_S0CzSO1v1fIK1KMaykHijbNMUw_6ZgLXe6AeligpDDZJeRpC0SwnoaJ3q3J1tWGcgwB0v2BQgS3lFyTJdlI7ZJTcNTuMZf5YQLOD0CCpRxekLPRRoSXp_2C3H798uPyqrn5_u368vNN4zrZLQ0w5lytyaSS0snBdy13MCovfC-0Fnq7lWoYQbRatXvtvZVcjL3tWcd7IS7I2-PcueRaFxeTAjqI0U5bd1MR3epWDpXsjqQrGbHAaOYSki0Hw5nZ7JtNrdnUmqEeNvuG19jr0wPrPoH_FzrprsCbE2DR2TgWO7mAj5zgXacVq9inIwbVxp8AxaALMDnwoVRtxufw_4_8BUu8osE</recordid><startdate>19960701</startdate><enddate>19960701</enddate><creator>BERMEJOBARRERA, P</creator><creator>MOREDAPINEIRO, A</creator><creator>ROMEROBARBEITO, T</creator><creator>MOREDAPINEIRO, J</creator><creator>BERMEJOBARRERA, A</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>19960701</creationdate><title>Use of aqueous slurry sampling for the determination of lead in human hair samples by electrothermal atomic absorption spectrometry</title><author>BERMEJOBARRERA, P ; MOREDAPINEIRO, A ; ROMEROBARBEITO, T ; MOREDAPINEIRO, J ; BERMEJOBARRERA, A</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c454t-e00cc86805655c59d421cef6d3d738838cc86569fe32862b8dda513f7a7041733</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1996</creationdate><topic>Analytical, structural and metabolic biochemistry</topic><topic>Atomic absorption spectrometry</topic><topic>Biological and medical sciences</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Hair</topic><topic>Inorganic compounds</topic><topic>Lead</topic><topic>Other biological molecules</topic><topic>Slurry sampling</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>BERMEJOBARRERA, P</creatorcontrib><creatorcontrib>MOREDAPINEIRO, A</creatorcontrib><creatorcontrib>ROMEROBARBEITO, T</creatorcontrib><creatorcontrib>MOREDAPINEIRO, J</creatorcontrib><creatorcontrib>BERMEJOBARRERA, A</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>BERMEJOBARRERA, P</au><au>MOREDAPINEIRO, A</au><au>ROMEROBARBEITO, T</au><au>MOREDAPINEIRO, J</au><au>BERMEJOBARRERA, A</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Use of aqueous slurry sampling for the determination of lead in human hair samples by electrothermal atomic absorption spectrometry</atitle><jtitle>Talanta (Oxford)</jtitle><addtitle>Talanta</addtitle><date>1996-07-01</date><risdate>1996</risdate><volume>43</volume><issue>7</issue><spage>1099</spage><epage>1107</epage><pages>1099-1107</pages><issn>0039-9140</issn><eissn>1873-3573</eissn><coden>TLNTA2</coden><abstract>A method for the determination of lead in human hair slurries by electrothermal atomic absorption spectrometry was optimized. Particle size reduction was achieved with a vibrational mill ball equipped with zirconia cups, 20 min being sufficient grinding time to achieve an adequate particle diameter (<1 μm). The use of different thickening agents, namely glycerol, Triton X-100 and Viscalex HV30, was studied and glycerol was found to be the best. The use of Pd and Mg(NO
3)
2 at optimum concentrations of 20 and 25 mg l
−1 respectively was found to be satisfactory for stabilizing lead at 1100 °C. A limit of detection of 0.21 mg kg
−1 was obtained. The limit of detection can be reduced to 0.05 mg kg
−1 without loss of analytical performance by increasing four-fold the amount of hair sample. Accuracy was studied by analysis of a CRM 397 human hair reference material with a certified lead content of 33.0 ± 1.2 mg Pb kg
−1. The standard addition method was used for the determination of lead in hair samples from healthy people, the levels being between 2.3 and 35.5 mg kg
−1.</abstract><cop>Amsterdam</cop><cop>Oxford</cop><pub>Elsevier B.V</pub><pmid>18966586</pmid><doi>10.1016/0039-9140(96)01868-1</doi><tpages>9</tpages></addata></record> |
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| ispartof | Talanta (Oxford), 1996-07, Vol.43 (7), p.1099-1107 |
| issn | 0039-9140 1873-3573 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_733828259 |
| source | Elsevier ScienceDirect Journals Complete |
| subjects | Analytical, structural and metabolic biochemistry Atomic absorption spectrometry Biological and medical sciences Fundamental and applied biological sciences. Psychology Hair Inorganic compounds Lead Other biological molecules Slurry sampling |
| title | Use of aqueous slurry sampling for the determination of lead in human hair samples by electrothermal atomic absorption spectrometry |
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