Selective method for the determination of gold by anodic stripping voltammetry
Abstract A highly selective method for the deter- mination of gold by anodic stripping voltammetry is described. For preconcentration a glassy carbon electrode, activated by deposition of small amounts of gold before the measurement, is proposed. The Au3+ reduction process at such an electrode is effective starting with the potential +0.4 V vs. Ag/AgCl electrode. A linear dependence of the current of the gold stripping peak on the gold concentration was obtained in the range from 5×10−8 to 1×10−6 mol/l. The relative standard deviation for 2×10-7 mol/l HAuCl4 was 4.2% (n=5). The detection limit was 4×10-9 mol/l. The accuracy of the method was verified by the determination of gold in reference materials..
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
1996 |
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| Erschienen: |
1996 |
| Reproduktion: |
Springer Online Journal Archives 1860-2002 |
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| Enthalten in: |
Zur Gesamtaufnahme - volume:356 |
| Enthalten in: |
Fresenius' Zeitschrift für analytische Chemie - 356(1996) vom: Aug., Seite 480-483 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Korolczuk, Mieczysław [Sonstige Person] |
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| Links: |
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| Umfang: |
4 |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLEJ20182857X |
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|---|---|---|---|
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| 245 | 1 | 0 | |a Selective method for the determination of gold by anodic stripping voltammetry |
| 264 | 1 | |c 1996 | |
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| 336 | |a nicht spezifiziert |b zzz |2 rdacontent | ||
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| 520 | |a Abstract A highly selective method for the deter- mination of gold by anodic stripping voltammetry is described. For preconcentration a glassy carbon electrode, activated by deposition of small amounts of gold before the measurement, is proposed. The Au3+ reduction process at such an electrode is effective starting with the potential +0.4 V vs. Ag/AgCl electrode. A linear dependence of the current of the gold stripping peak on the gold concentration was obtained in the range from 5×10−8 to 1×10−6 mol/l. The relative standard deviation for 2×10-7 mol/l HAuCl4 was 4.2% (n=5). The detection limit was 4×10-9 mol/l. The accuracy of the method was verified by the determination of gold in reference materials. | ||
| 533 | |f Springer Online Journal Archives 1860-2002 | ||
| 700 | 1 | |a Korolczuk, Mieczysław |4 oth | |
| 773 | 0 | 8 | |i in |t Fresenius' Zeitschrift für analytische Chemie |d 1947 |g 356(1996) vom: Aug., Seite 480-483 |w (DE-627)NLEJ188989293 |w (DE-600)2235442-6 |x 1618-2650 |7 nnns |
| 773 | 1 | 8 | |g volume:356 |g year:1996 |g month:08 |g pages:480-483 |g extent:4 |
| 856 | 4 | 0 | |u http://dx.doi.org/10.1007/s0021663560480 |
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| 952 | |d 356 |j 1996 |c 8 |h 480-483 |g 4 | ||