Tatjana S. Papina

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The depression of the signals for Ag, Bi, Cd, Sn, and Tl trace determination by ETA-AAS, which occurs in the presence of hydrobromic acid (with or without indium present), has been investigated by use of a new combined atomization equipment, molecular absorption measurements and thermodynamic calculations. The results show that all these elements form(More)
Etching procedures for separation of thin layers of InAs (up to 1.4 mum thick) have been developed and optimized. A solid-state microtome has been used for cutting layers thicker than 1mum. AAS/ETA methods for determination of traces of Ag, Au, Bi, Cd, Sn, and Tl have been developed. The matrix interferences of nitric add, hydrobromic acid, and As(3+) or(More)
Some results of a 2-year study of mercury pollution of the Katun river (Siberia) are summarised. Measurements of water flow, sediment transport and mercury concentrations were made and used to calculate the amount of mercury transported by the river. The distribution of transport between water phase and suspended material is calculated. It is concluded that(More)
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