The recent advances in nanotechnology and nanoscience have introduced nanoscale materials with emergent physical and chemical properties to transform the world.

A total of 234 cans of enamel decorative paints were purchased in retail establishments in the following nine countries: Argentina, Azerbaijan, Chile, Cote d’Ivoire, Ethiopia, Ghana, Kyrgyzstan, Tunisia, and Uruguay. An additional 10 cans of anti-corrosive enamel paints were purchased in Côte d'Ivoire. All the paints – the 234 samples of decorative paints and the 10 samples of anti-corrosive paints – were tested for their total lead content, and dry weight.

Carbon dioxide is altering the chemistry of the surface oceans and causing them to become more acidic. From scientists and marine resource managers, to policy and decision-makers, there is growing concern that the process called ocean acidification could have significant consequences on marine organisms which may alter species composition, disrupt marine food webs and ecosystems and potentially damage fishing, tourism and other human activities connected to the seas.

Gas-liquid chromatography (GLC) 1s commonly used for the identification and quantitative determination of a number of mycotoxine in foodstuffs and fodder.