Difficulties with the Determination of Mercury in Foodstuffs by Stripping Voltammetry
| Parent link: | Journal of Analytical Chemistry Vol. 59, iss. 5.— 2004.— [P. 468–473] |
|---|---|
| Awduron Eraill: | , , , |
| Crynodeb: | Title screen The main problems with the determination of mercury in foodstuffs by stripping voltammetry were analyzed. The conditions for obtaining the analytical signal from mercury(II) at a gold-graphite electrode and for reducing the effect of interfering substances were refined. A simplified procedure for the preparation of foodstuff samples by the chemical (HNO3 + H2O2) and photochemical oxidation of samples was proposed. The determination conditions were optimized by the fractional factorial design of the experiments. It was shown that a gas-discharge XeBr excilamp can be used as an alternative to a mercury quartz lamp in the sample preparation of foodstuffs. The conditions for reducing the blank experiment and its contribution to the results of determination were considered. Режим доступа: по договору с организацией-держателем ресурса |
| Iaith: | Saesneg |
| Cyhoeddwyd: |
2004
|
| Pynciau: | |
| Mynediad Ar-lein: | http://dx.doi.org/10.1023/B:JANC.0000026240.78768.80 |
| Fformat: | Electronig Pennod Llyfr |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=654849 |
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