Use of Sol−Gels as Solid Matrixes for Trace Analysis by UV Laser Ablation and Laser-Enhanced Ionization Detection
Zirconium and silicon sol−gels were investigated as solid materials for trace elemental analysis of pelletized solid samples by laser ablation and laser-enhanced ionization. The highly homogeneous dispersion of an internal standard spiked in the solid material obtained with the sol−gel formation pro...
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| Veröffentlicht in: | Analytical chemistry (Washington) 2005-01, Vol.77 (2), p.706-710 |
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| container_title | Analytical chemistry (Washington) |
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| creator | Viger, Mathieu L Gravel, Jean-François Y Brouard, Danny Beauchemin, Diane Boudreau, Denis |
| description | Zirconium and silicon sol−gels were investigated as solid materials for trace elemental analysis of pelletized solid samples by laser ablation and laser-enhanced ionization. The highly homogeneous dispersion of an internal standard spiked in the solid material obtained with the sol−gel formation process leads to a significant improvement in signal repeatability and to an increase in the precision of measurements through better correction of variations in the laser ablation rate. Signal repeatability values of 5−8% RSD were obtained for Pb in NIST 1632c Bituminous Coal sample pellets prepared using both sol−gels, as compared to 9−21% for graphite-based sample pellets. Furthermore, the zirconium sol−gel was shown to offer better resilience to signal bias due to preferential ablation and a more accurate correction of ablation rate using the internal standardization method. |
| doi_str_mv | 10.1021/ac048884i |
| format | Article |
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The highly homogeneous dispersion of an internal standard spiked in the solid material obtained with the sol−gel formation process leads to a significant improvement in signal repeatability and to an increase in the precision of measurements through better correction of variations in the laser ablation rate. Signal repeatability values of 5−8% RSD were obtained for Pb in NIST 1632c Bituminous Coal sample pellets prepared using both sol−gels, as compared to 9−21% for graphite-based sample pellets. 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Furthermore, the zirconium sol−gel was shown to offer better resilience to signal bias due to preferential ablation and a more accurate correction of ablation rate using the internal standardization method.</description><subject>Analytical chemistry</subject><subject>Chemistry</subject><subject>Comparative analysis</subject><subject>Exact sciences and technology</subject><subject>General, instrumentation</subject><subject>Lasers</subject><subject>Scientific imaging</subject><subject>Solids</subject><subject>Trace elements</subject><issn>0003-2700</issn><issn>1520-6882</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2005</creationdate><recordtype>article</recordtype><recordid>eNpl0c2O0zAQAGALgdhSOPACyEICiUNgnDi2e6yWZXehiJW25Wo5zlh4SZPFk0pbnoAzj8iTkCjVVoKTf-bTaH4Yey7grYBcvHMepDFGxgdsJsocMmVM_pDNAKDIcg1wwp4Q3QAIAUI9ZieiVHIBWs0YbQh5F_h11_z59fscG-KOxles-WfXp3iHxEOX-Do5j3zZumZPkXi155uvfOUIE19Wjetj13LX1tNXdtZ-c63Hml92bfw5Rd9jj368PWWPgmsInx3OOdt8OFufXmSrL-eXp8tV5iSYPisxFKaAUoEKUmFtvBZ1VVcYKg1-IVQulc6D8rXLjdIoqyD0QpZ5iYWqvSrm7PWU9zZ1P3ZIvd1G8tg0rsVuR1bpQuVCmwG-_AfedLs0tEp2jC9ADXTO3kzIp44oYbC3KW5d2lsBdlyDvV_DYF8cEu6qLdZHeZj7AF4dgCPvmpCGaUU6OiWlVBIGl00uUo9393GXvo_V69Kur65tsb7KPxVwYT8e8zpPxyb-L_AvBTKp9Q</recordid><startdate>20050115</startdate><enddate>20050115</enddate><creator>Viger, Mathieu L</creator><creator>Gravel, Jean-François Y</creator><creator>Brouard, Danny</creator><creator>Beauchemin, Diane</creator><creator>Boudreau, Denis</creator><general>American Chemical Society</general><scope>BSCLL</scope><scope>IQODW</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QF</scope><scope>7QO</scope><scope>7QQ</scope><scope>7SC</scope><scope>7SE</scope><scope>7SP</scope><scope>7SR</scope><scope>7TA</scope><scope>7TB</scope><scope>7TM</scope><scope>7U5</scope><scope>7U7</scope><scope>7U9</scope><scope>8BQ</scope><scope>8FD</scope><scope>C1K</scope><scope>F28</scope><scope>FR3</scope><scope>H8D</scope><scope>H8G</scope><scope>H94</scope><scope>JG9</scope><scope>JQ2</scope><scope>KR7</scope><scope>L7M</scope><scope>L~C</scope><scope>L~D</scope><scope>P64</scope><scope>7X8</scope></search><sort><creationdate>20050115</creationdate><title>Use of Sol−Gels as Solid Matrixes for Trace Analysis by UV Laser Ablation and Laser-Enhanced Ionization Detection</title><author>Viger, Mathieu L ; 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Chem</addtitle><date>2005-01-15</date><risdate>2005</risdate><volume>77</volume><issue>2</issue><spage>706</spage><epage>710</epage><pages>706-710</pages><issn>0003-2700</issn><eissn>1520-6882</eissn><coden>ANCHAM</coden><abstract>Zirconium and silicon sol−gels were investigated as solid materials for trace elemental analysis of pelletized solid samples by laser ablation and laser-enhanced ionization. The highly homogeneous dispersion of an internal standard spiked in the solid material obtained with the sol−gel formation process leads to a significant improvement in signal repeatability and to an increase in the precision of measurements through better correction of variations in the laser ablation rate. Signal repeatability values of 5−8% RSD were obtained for Pb in NIST 1632c Bituminous Coal sample pellets prepared using both sol−gels, as compared to 9−21% for graphite-based sample pellets. Furthermore, the zirconium sol−gel was shown to offer better resilience to signal bias due to preferential ablation and a more accurate correction of ablation rate using the internal standardization method.</abstract><cop>Washington, DC</cop><pub>American Chemical Society</pub><pmid>15649076</pmid><doi>10.1021/ac048884i</doi><tpages>5</tpages></addata></record> |
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| subjects | Analytical chemistry Chemistry Comparative analysis Exact sciences and technology General, instrumentation Lasers Scientific imaging Solids Trace elements |
| title | Use of Sol−Gels as Solid Matrixes for Trace Analysis by UV Laser Ablation and Laser-Enhanced Ionization Detection |
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