Department of Chemistry, Islamic Azad University, Tehran South Branch, Tehran, I.R. IRAN
A method for the preconcentration of trace mercury ion in environmental samples has been reported. Nowadays efforts are being focused on the development of microextraction techniques. In this study, we describe an efficient approach with good reproducibility, fast, simple, cheap and relatively environmentally friendly for preconcentration of mercury in ppb level in the real samples. This technique is compatible with many analytical instruments. In this work, the Samples preconcentration were measured by ICP-AES. As a result, the major advantage of this method was enrichment factor of 168, LOD less than 10 ppb and RSD% less than 4%. Highly sensitive Hg analysis was therefore required for determining the low levels of Hg in natural waters.