The levels of selected heavy metals in popular cigarette brands sold and/or produced in Saudi Arabia were determined by graphite furnace-atomic absorption spectrometry (GFAAS). Average concentrations of Cadmium and Lead in different cigarette brands were 1.81 and 2.46 μg g⁻¹ (dry weight), respectively. The results obtained in this study estimate the average quantity of Cd inhaled from smoking o...

Five carbons with different graphitization degrees, which were heat-treated at temperatures of 1273 to 3273K, were prepared. These carbons were bonded to nickel in a vacuum, using an RF-induction furnace, with joining temperatures of 1073 to 1273K. On the basis of the results of these experiments, the effects of the graphitization degree on the solid-state bonding of carbon to nickel were exami...

In the present study, trace elements including Na, Mg, K, Ca, Mn, Fe, Cu, Zn, Cd and Pb in Althaea rosea seeds were determined by flame and graphite furnace atomic absorption spectrometry. This method coupled with microwave-assisted acid digestion, based on a mixture of nitric acid and hydrogen peroxide. In order to get a better insight into the elemental patterns, the chemometric techniques of...