April 2013

Comparison of World Trade Center dust with zinc acetate and lead oxide combinations to determine damage to human lung cells

The exposures of the World Trade Center (WTC) dust of the September 11, 2001 tragedy are linked to increased respiratory problems and emergence of World Trade Center Cough. Zinc (Zn) and Lead (Pb) are among the many heavy metals found in WTC dust. Synergistic effects among several chemicals might be contributing to respiratory illness. The individual toxicity, and combination treatments of Pb and Zn at a particular...

Author(s): Niharika Pattnaik and Ann Marie DiLorenzo

April 2013

A spectrophotometric method for quantification of sulphite ions in environmental samples

This study described an alternative method developed for the quantification of sulphite ions in environmental samples. The method was based on results of an investigation of the reaction of excess pentacyanidonitrosylferrate(II) popularly known as nitroprusside (NP) and the sulphite anion. NP-SO32- reaction product by use of zinc-ethylenediamine complex cation(s) was stabilized. The NP-SO32-  reaction...

Author(s): Peter Musagala, Henry Ssekaalo, Jolocam Mbabazi and Muhammad Ntale