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Generación electroquímica de especie volátil de Pb sobre cátodos de Au/Hg como técnica de introducción de muestra en la determinación de Pb por espectroscopia de absorción atómica
| Content Provider | Semantic Scholar |
|---|---|
| Author | Morales, Ghislaine Fernández, Lenys Roméro, Hugo Lapo, Byron Alvarado, José Tomás |
| Copyright Year | 2015 |
| Abstract | We have used amalgamated Au cathodes for electrochemical generation of volatile lead hydride, PbH4. An electrochemical cell was coupled to an atomic absorption spectrometer, using the lead absorbance signal as a measure of production of volatile Pb hydride and univariate approach to optimize operational parameters. Cathode of Au/Hg showed better mechanical resistance and better tolerance to interfering ions than other traditional cathodes. Under optimized conditions, a 0.02 µg.L-1 (Sbl + 3?) detection limit for Pb (II) is reported in aqueous solutions. The accuracy of the method was determined by quantification of Pb in a river water material reference (SLRS-2/National Research Council Canada). |
| Starting Page | 49 |
| Ending Page | 54 |
| Page Count | 6 |
| File Format | PDF HTM / HTML |
| Volume Number | 10 |
| Alternate Webpage(s) | http://erevistas.saber.ula.ve/index.php/avancesenquimica/article/download/6289/6110 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
