Separation of Magnesium Isotopes by Chemical Exchange with Manganese (IV) Oxide.

Abstract

Separation of magnesium isotopes was investigated by chemical ion exchange with manganese (IV) oxide using an elution chromatographic technique. The capacity of manganese (IV) oxide ion exchanger was 0.5 meq/g. The heavier isotopes of magnesium were concentrated in the manganese oxide phase, while the lighter isotopes were enriched in the solution phase. The glass ion exchange column used in our experiment was 35 cm long with inner diameter of 0.2 cm, and 1.0 M CH 3 COONH 4 solution was used as an eluent. The single stage separation factor was determined according to the method of Glueckauf from the elution curve and isotopic assays.

A Comprehensive Review of Glucose Biosensors Based on Nanostructured Metal-Oxides

“…As an example of the permselective membrane, MnO 2 a strong oxidant has been tested to get rid of interference signals in glucose sensing by Choi et al [ 130 ]. The IEP of MnO 2 is quite low (4–5) at pH ranging from 2.8 to 4.5 but at higher pH, MnO 2 showed favorable environment for the immobilization of biomolecules [ 131 , 132 ].…”

pH effect on phosphate sorption by crystalline MnO2

“…Thus, the trace metal and phosphate concentration in the aqueous system is at least partially dependent on the abundance of manganese oxides. It is also known to have the properties of uptake of metal cations and has been used successfully for the removal of alkali, alkaline earths and transition metal cations [12][13][14][15]. However, there are only a few reports in the literature [16] about the sorption of phosphate anions by the manganese dioxide although it is also known to play a major role in phosphate fixation in soils [17].…”

Heat transfer enhancement with actuation of magnetic nanoparticles suspended in a base fluid

“…Nanofluids have been usually used for the deposition of nanoparticles on pool surfaces to promote heat transfer by creating roughness and active nucleate sites. [18][19][20][21][22][23][24] Different from the state of art, nanofluids containing magnetic nanoparticles are utilized in this study to remove heat from excessive heat generating surfaces. Magnetic nanoparticles are actuated and utilized as heat transporters so that the system can be operated more effectively.…”