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Electrometric investigations on formation of lanthanum molybdates as a function of pH
(Soc Brasileira Quimica, 2004-03-01)
The precise nature of the reaction between lanthanum nitrate and sodium molybdate at specific pH levels 7.6, 5.5 and 4.1 has been studied by means of electrometric techniques involving potentiometric and conductometric ...
Sintering of cobalt and strontium doped lanthanum chromite obtained by combustion synthesis
(2006-12-01)
Lanthanum chromite (LaCrO3) is one of the most adequate materials for use as interconnector in solid oxide fuel cell (SOFC) applications, due to its intrinsic properties, namely its good electrical conductivity and resistance ...
Sintering of cobalt and strontium doped lanthanum chromite obtained by combustion synthesis
(2006-12-01)
Lanthanum chromite (LaCrO3) is one of the most adequate materials for use as interconnector in solid oxide fuel cell (SOFC) applications, due to its intrinsic properties, namely its good electrical conductivity and resistance ...
Determination of Tellurium by Electrothermal Atomic Absorption Spectrometry with Preconcentration by Co-Precipitation with Lanthanum Hydroxide
(Atomic Spectroscopy Press Limited, 2005-12)
A procedure for the determination of traces of total tellurium is described which combines electrothermal atomic absorption spectrometry (ETAAS) with preconcentration of the analyte by coprecipitation. The samples, each ...
Structure and thermal decomposition of poly[[triaqua(mu(4)-oxydiacetato)lanthanum(III)] nitrate]
(2007)
In the title lanthanum complex, {[La(C4H4O5)(H2O)(3)] NO3}(n), the lanthanum cation is immersed in a nine-coordinate environment provided by a tridentate oxydiacetate (oda) ligand ( through two carboxylate and one ether O ...
Characterization of dense lead lanthanum titanate ceramics prepared from powders synthesized by the oxidant peroxo method
(Elsevier B.V. Sa, 2010-12-01)
Nanosized powders of lead lanthanum titanate (Pb(1-x)La(x)TiO(3)) were synthesized by means of the oxidant-peroxo method (OPM) Lanthanum was added from 5 to 30% in mol through the dissolution of lanthanum oxide in nitric ...
Characterization of dense lead lanthanum titanate ceramics prepared from powders synthesized by the oxidant peroxo method
(Elsevier B.V. Sa, 2010-12-01)
Nanosized powders of lead lanthanum titanate (Pb(1-x)La(x)TiO(3)) were synthesized by means of the oxidant-peroxo method (OPM) Lanthanum was added from 5 to 30% in mol through the dissolution of lanthanum oxide in nitric ...
Fat body, hemolymph and ovary routes for delivery of substances to ovary in Melipona quadrifasciata anthidioides: Differences among castes through the use of electron-opaque tracers
(2013-08-01)
The yolk protein precursor, vitellogenin (Vg), in bees is synthesized in the fat body trophocytes, delivered to the hemolymph and ultimately absorbed from there during the vitellogenic phase of oocytes in the active ovary. ...
Fat body, hemolymph and ovary routes for delivery of substances to ovary in Melipona quadrifasciata anthidioides: Differences among castes through the use of electron-opaque tracers
(2013-08-01)
The yolk protein precursor, vitellogenin (Vg), in bees is synthesized in the fat body trophocytes, delivered to the hemolymph and ultimately absorbed from there during the vitellogenic phase of oocytes in the active ovary. ...