Nanocrystalline undoped and 5% Mn doped ZnO powders are synthesized by sol-gel route using constituent nitrate and citrate precursors. The physico-chemical characterizations of powders calcined at various temperatures (400-1100 ̊C), are performed using techniques (XRD and SQUID) to study structural, nano/microstructural, and magnetic properties. XRD patterns clearly revealed the evolution of ma...

Chemical analytical data have been obtained for kraisslite and mcgoverdite. Kraisslite contains both trivalent and pentavalent arsenic in the weight ratio of 3 :4. Specimens from different parageneses have relatively invariant chemical compositions, which suggests some degree of ordering of Mg, Mn, andZn. The average of five analyses yields MgO 2.6, MnO 52.0, ZnO 8.6, FerO, 2.0, AsrO, 6.69, Alr...

Three experiments were conducted to evaluate the effect of feeding pharmacological concentrations of zinc (Zn), from organic and inorganic sources, on growth performance, plasma and tissue Zn accumulation, and Zn excretion of nursery pigs. Blood from all pigs was collected for plasma Zn determination on d 14 in Exp. 1, d 7 and 28 in Exp. 2, and d 15 in Exp. 3. In Exp. 1, 2, and 3, 90, 100, and ...