An excellent discussion of the work of Jaroslav Heyrovsky and the development of polarography is given by Zuman (1). Of critical importance in the invention of the polarographic technique was the fact that the electrochemical experiments were carried out using the dropping mercury electrode (DME). Mercury is unique among metal electrodes for several reasons. Because it is a liquid, its interfac...

A review is given of a relatively unknown area of the electronic structures of Rydberg radicals. The primary examples of such structures are H , NH4 and H30. The condensed phase existence of the latter 8wo has long been proposed. Mercury amalgams of organic ammonium radicals, R4N, have been reported. Theoretical studies are reported on some of these species. in liquid ammonia vis-a-vis NH4 + e ...

Experiments involving mercury resistance mer operon-lacZ fusions, point mutations in the mercuric ion reductase merA gene, and transcomplementation have revealed that in Hg2+-resistant cells, the inducer Hg2+ concentration is rate determining for activation of transcription. mer operon expression is activated by the presence of nanomolar concentrations of Hg2+ in liquid media only when the merc...

Due to hygienic risks of mercury residues in food and marine originated supplements, measuring total mercury and methyl mercury contents of canned tuna as a highly consumable marine food product is essential. In this study, 40 canned Tuna fish (from Persian Gulf) were collected in 2015 and then flame atomic absorption spectrometer (FAAS) and thermo gas chromatography mass spectrophotometry were...