July 2016

Determination of bisphenol A in exposed bottled water samples to direct sun light using multi walled carbon nanotubes as solid phase extraction sorbent

Polycarbonate plastics (PC) containing bisphenol A (BPA) are used for the production of bottles   for storage drinking water. Trace amounts of BPA have been detected in ten different brands of bottled water samples from Khartoum supermarkets. Residues of BPA in bottled water were pre-concentrated using solid-phase extraction and determined by high performance liquid chromatography with fluorescence detector....

Author(s): Leena Omer, Hassn Ahmed and Abdalla Elbashir

July 2016

Heavy metals and metalloid accumulation in livers and kidneys of wild rats around gold-mining communities in Tarkwa, Ghana

Previous studies revealed high levels of metals in soils, drinking water, foodstuffs and food animals in several communities in Tarkwa, Ghana. Therefore wild rats were trapped from 16 communities in Tarkwa to estimate the environmental pollution state of metals; determine differences in sex in metal accumulation; and assess the potential risks involved. Concentrations of arsenic (As), cadmium (Cd), cobalt (Co), chromium...

Author(s): Nesta Bortey-Sam, Shouta M. M. Nakayama, Yoshinori Ikenaka, Osei Akoto, Elvis Baidoo, Hazuki Mizukawa and Mayumi Ishizuka

July 2016

Study on the effectiveness of five cleaning solutions in removing chlorpyrifos residues in cauliflower (Brassica oleracea)

Nowadays, contents of pesticide residues in vegetables had become one of the hot topics closely related to human health. In order to investigate the effectiveness of several cleaning solutions in removing pesticide residues in vegetables, a polluted cauliflower was washed using five types of cleaning solutions which were soda-salt solution, vinegar solution, tamarind juice solution, filtered flour solution, and tap...

Author(s): M. F. M. Nowowi, M. A. M. Ishak, K. Ismail and S. R. Zakaria