Heavy metal accumulation in the food chain is an issue of global concern because it eventually leads to toxic effects on humans through the water we drink, contaminated soils, crops, and animals. Reports of toxicant levels in environmental media (air, water, and soil) and biota in Ghana were sought in SCOPUS, PubMed, MEDLINE, and EMBASE. Of 1004 bibliographic records identified, 54 studies were...

High energy heavy ion collisions at the Relativistic Heavy Ion Collider (RHIC) produce a novel medium characterized by an initial energy density over an order of magnitude above the expected phase transformation value and that then evolves as a nearly inviscid liquid. Probing the medium with auto-generated particles is a key methodology to quantitatively determine the medium properties. Pairs o...

Wastewater treatment is gaining importance because of increasing awareness about health effects of water pollutants and stringent norms of regulatory bodies. Removal of heavy metals from industrial effluent can be carried out by various methods like ion exchange, adsorption, activated sludge process, electro coagulation, membrane separation processes, precipitation, coagulation etc. Arsenic is ...

The ability to separate isotopes by high-resolution ion mobility spectrometry techniques is considered as a direct means for determining mass at ambient pressures. Calculations of peak shapes from the transport equation show that it should be possible to separate isotopes for low-mass ions (<200) by utilizing heavy collision gases and high-resolution ion mobility analyzers. The mass accuracy as...

Microfabricated capillary array electrophoresis (microCAE) microchannel plates are the next generation of bioanalytical separation devices. To fully exploit the capabilities of microCAE devices, supporting technology such as robotic sample loading, gel loading, microplate washing, and data analysis must be developed. Here, we describe a device for loading gel into radial capillary array electro...

The separation of wave-modes for isotropic elastic wavefields is typically done using Helmholtz decomposition. However, Helmholtz decomposition using conventional divergence and curl operators in anisotropic media only partially separates the elastic wave-modes. The separation of anisotropic wavefields requires operators which depend on local material parameters. Wavefield separation operators ...

Separation of solids from liquid swine manure and subsequent thermochemical conversion (TCC) of the solids fraction into oil is one way of reducing the waste strength and odor emission. Such processing also provides a potential means of producing renewable energy from animal wastes. Gravity settling and mechanical separation techniques, by means of a centrifuge and belt press, were used to remo...

A rapid, sensitive, and reproducible pre-column derivatisation procedure has been established for the simultaneous determination of 20 amino acids by high-performance liquid chromatography using fluorescence detection. The amino acids were derivatized using o-phthalaldehyde and 9-fluorenylmethyl-chloroformate reagents. The optimal conditions for simultaneous separation and detection of both pri...

The extraction and separation of lanthanides have been investigated using CHON-type extractants, which are composed of only C, H, O, and N atoms. N,N-Dioctyldiglycol amic acid (DODGAA) showed high extraction and separation performances for heavier lanthanides compared with typical CHON-type extractants. On the other hand, N,N,N',N'-tetrakis(2-pyridylmethyl)ethylenediamine (TPEN) provided an unp...