Determination of mercury traces by differential-pulse stripping voltammetry after sorption of mercury vapour on a gold-plated electrode
Trace mercury is reduced with tin(II) to mercury metal, which is volatilised by bubbling air through the solution. A certain fraction of this mercury is sorbed on a rotating gold disk electrode and stripped in a thiocyanate solution. The detection limit is about 30 ng Hg(II) in solution; the relativ...
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| Veröffentlicht in: | Analytica chimica acta 1987, Vol.199, p.167-171 |
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| container_end_page | 171 |
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| container_issue | |
| container_start_page | 167 |
| container_title | Analytica chimica acta |
| container_volume | 199 |
| creator | Scholz, Fritz Nitschke, Lutz Henrion, Günter |
| description | Trace mercury is reduced with tin(II) to mercury metal, which is volatilised by bubbling air through the solution. A certain fraction of this mercury is sorbed on a rotating gold disk electrode and stripped in a thiocyanate solution. The detection limit is about 30 ng Hg(II) in solution; the relative standard deviation is 6% for 100 ng Hg(II) (
n = 7). The detection limit for mercury in air is 1.7 ng l
−1 with a preconcentration time of 10 min. |
| doi_str_mv | 10.1016/S0003-2670(00)82809-3 |
| format | Article |
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n = 7). The detection limit for mercury in air is 1.7 ng l
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| ispartof | Analytica chimica acta, 1987, Vol.199, p.167-171 |
| issn | 0003-2670 1873-4324 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_13777990 |
| source | ScienceDirect Freedom Collection (Elsevier) |
| subjects | Analytical chemistry Chemistry Electrochemical methods Exact sciences and technology |
| title | Determination of mercury traces by differential-pulse stripping voltammetry after sorption of mercury vapour on a gold-plated electrode |
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