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Studies on double selenates. Part 12. Thermal decomposition of ammonium selenate and of double selenates of lanthanide, and yttrium, and ammonium
(Elsevier B.V., 1994-07-01)
Thermogravimetry (TG) up to 900°C, differential thermal analysis (DTA) up to 1100°C and gravimetric data up to 1200°C, have been used to study the thermal decomposition of ammonium selenate and of the double selenates of ...
Preparacao, caracterizacao e estudo do comportamento termico dos sele-natos duplos de calcio, berilio e amonio
(Editora Unesp, 1996-01-01)
The preparation and thermal decomposition ammonium selenate and calcium and beryllium selenates have been reported previously. However, there are not any information in the literature concerning the thermal decomposition ...
Preparacao, caracterizacao e estudo do comportamento termico dos sele-natos duplos de calcio, berilio e amonio
(Editora Unesp, 1996-01-01)
The preparation and thermal decomposition ammonium selenate and calcium and beryllium selenates have been reported previously. However, there are not any information in the literature concerning the thermal decomposition ...
Preparação, caracterização e estudo do comportamento térmico dos selenatos duplos de cálcio, de berílio e de amônio
(1996-12-01)
The preparation and thermal decomposition of ammonium selenate and calcium and beryllium selenates have been reported previously. However, there are not any information in the literature concerning the thermal decomposition ...
Tungsten permanent chemical modifier for fast estimation of Se contents in soil by graphite furnace atomic absorption spectrometry
(Amer Chemical Soc, 2003-07-02)
A tungsten carbide coating on the integrated platform of a transversely heated graphite atomizer was used as a modifier for the direct determination of Se in soil extracts by graphite furnace atomic absorption spectrometry. ...
Tungsten permanent chemical modifier for fast estimation of Se contents in soil by graphite furnace atomic absorption spectrometry
(Amer Chemical Soc, 2003-07-02)
A tungsten carbide coating on the integrated platform of a transversely heated graphite atomizer was used as a modifier for the direct determination of Se in soil extracts by graphite furnace atomic absorption spectrometry. ...