Inorganic Chemicals Commons^™

Applications Of Weak Ion Association Between Symmetrical Tetraalkylammonium Ions And Inorganic Anions, Julius Mbuna

Journal of Humanities and Social Sciences

Interactions between tetraalkylammonium ions and inorganic anions can be used to develop methods of separation for inorganic anions by any separation technique. From the ion association and thermodynamic data, capillary electrophoretic (CE) technique can be easily designed to effect separation of inorganic anions samples. Using CE mode such as capillary zone electrophoresis (CZE) to investigate weak ion association between inorganic anions and the pairing cations also furnishes data to evaluate association theories like Bjerrum’s theory. Findings show that the increase in association constant Kass as the dielectric constant decreased is not exponential as maintained by the Bjerrum’s theory. The increase …

Arsenic Contamination In Groundwater In Vietnam: An Overview And Analysis Of The Historical, Cultural, Economic, And Political Parameters In The Success Of Various Mitigation Options, Thuy M. Ly

Pomona Senior Theses

Although arsenic is naturally present in the environment, 99% of human exposure to arsenic is through ingestion. Throughout history, arsenic is known as “the king of poisons”; it is mutagenic, carcinogenic, and teratogenic. Even in smaller concentrations, it accumulates in the body and takes decades before any physical symptoms of arsenic poisoning shows. According to the World Health Organization (WHO), the safe concentration of arsenic in drinking water is 10 µg/L. However, this limit is often times ignored until it is decades too late and people begin showing symptoms of having been poisoned.

This is the current situation for Vietnam, …