In hydnde generation ammlc absorptKm spectrnuletry, chemcal Ilelfer~S among llydrlde-forrmng elemeats lead to systematic errors m the determmatlon of concentrations Using the system of Se, Sb and As as an example of snnultaneously occurring elements, it IS shown how to remove the systematic underest
Cross-interferences of hydride-forming elements in hydride-generation atomic absorption spectrometry
β Scribed by P. Barth; V. Krivan; R. Hausbeck
- Publisher
- Elsevier Science
- Year
- 1992
- Tongue
- English
- Weight
- 580 KB
- Volume
- 263
- Category
- Article
- ISSN
- 0003-2670
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β¦ Synopsis
A systematic study was made of mterferences of As(V), BI(III), Se(N), SMIIJ), Sn(IV) and Te(IV) m the determmatton of As(V), Sb(III), Se(N) and S&V) by hydride-generatlon atonuc absorption spectrometry The mterfenng elements were apphed m concentrations between 1 ng ml-' and 100 pg ml-' The effect of potassmm mdtde on the interferences by bismuth, selemum and tellunum on the antunony absorption slgnal and the Interferences of antunony, arsenic, bismuth, tellunum and tm on the selemum absorption slgnal by addltlon of oxygen and a mxture of oxygen and ozone were also mvestlgated A time versus absorption diagram wtth superlmposed recordings of the absorption signals of the elements antimony, arsemc, bismuth, selenmm, tellurmm and tm IS given
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