الفهرس 
Aim of the workOnly 14 pages are availabe for public view
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Abstract
Preparation of two groups of synthetic melanin nanoparticles characterization of synthetic melanin nanoparticles and study of their ability to remove some heavy metals from aqueous samples. These synthetic nanoparticles can be used to remove a variety of Metal ions and a study of the mechanisms of heavy metal uptake by melanin derived from biological sources. Determination of lead ions in aqueous solutions using nitrogen vacuum diamond nanoparticles as a fluorescent sensor. Chemical oxygen demand (COD) measurements were determined using the rapid cyclic voltage scanning technique and compared to conventional methods for measuring the COD of glucose and fructose.