Levels of activity of glucose-6-phosphate- , 6-phosphogluconate- , and isocitric- dehydrogenase were measured in the
soluble and particulate fractions of heart, brain and liver at
several ages throughout the development of the chick embryo.
Compared to isocitric dehydrogenase, levels of glucosesphosphate-
, and 6-phosphogluconate- dehydrogenase are generally
low. This suggests...
We report the use of MIL-120 as a water-stable and cost-effective metal-organic framework (MOF) for selectively capturing CO₂ from wet flue gas. Synthesized using inexpensive and environmentally benign reagents in water, MIL-120 possesses one-dimensional pores decorated with hydroxyl-bridged Al(III) ions and benzene rings with an interstitial spacing of 4.78 Å....
Quaternary Ammonium Compounds, Qams, are an important class of
chemicals which present interesting challenges to analysts. This thesis
reports results of investigations on uses of ion-pairing techniques for
separations and detection of Qams. Special apparatus for post-column
solvent extraction of liquid chromatographic eluates was developed as
part of this work....
The electrochemistry of the lithium-potassium-sodium
carbonate-borate melt was explored by voltammetry and chrono-amperometry. In support of this, a controlled-potential polarograph
and associated hardware was constructed.
Several different types
of reference electrodes were tried before choosing a porcelain membrane electrode containing a silver wire immersed in a silver sulfate
melt.
The...
Neptunium, with its rich redox chemistry, has a special position in the chemistry of actinides. With a decades-long history of development of aqueous separation methods for used nuclear fuel (UNF), management of neptunium remains an unresolved issue because of its not clearly defined redox speciation. Neptunium is present in two,...
We report on the effects of spin fluctuations, magnetic ordering, and external magnetic field on the
dielectric constant of the ferromagnet SeCuO₃, and the antiferromagnet TeCuO₃. A model based on the
coupling between uniform polarization and the q-dependent spin-spin correlation function is presented
to explain the different behaviors for these...
This research emphasized fundamental physical and electrochemical
studies of systems based on the room temperature fused salt, triethyl-ammonium
dichlorocuprate(I). Such systems, which must be maintained
under a protective atmosphere, were also used in some preliminary
battery studies.
Spectra of dark green solutions of copper (II) chloride in
triethylammonium dichlorocuprate(I) obey...
The electrochemistry of cadmium at a Reticulated Vitreous
Carbon (RVC) electrode has been studied to determine the suitability of
RVC as a working electrode for the electrochemical preconcentration of
cadmium in the corrosive environment of zirconium dissolved in
hydrofluoric acid.
The electrochemistry in this investigation deals with deposition
of solid...
A new pulse method for measuring differential double layer
capacitances has been developed in this work. The technique is based
on the determination of the cell time constant which, for an ideally
polarized test electrode-solution interface, is composed of the double
layer capacitance and solution resistance. By applying small step...
Transition metal oxides exhibit potential in various application fields due to the special d-electrons. Solid state chemistry focuses on discovering the structure-property relationships. The work in this thesis mainly discusses compounds with hexagonal or brownmillerite-type structure and their practical properties.
Hexagonal YIn[subscript 1-x]Fe[subscript x]O₃ (x = 0-0.3, 0.7-1.0) phases have...