Determination of Iodide and Idoxuridine at a Glutaraldehyde-Cross-Linked Poly-L-Lysine Modified Glassy Carbon Electrode

The detection limit (about 0.017 mu g mL(-1)) for voltammetric determination of iodide (peak at +0.87 V vs. Ag/AgCl at pH 2) at a glutaraldehyde-cross-linked poly-L-lysine modified glassy carbon electrode involving oxidation to iodine was found to be several orders of magnitude lower than that for the voltammetric determination on a bare glassy carbon electrode. This method was applied successfully to the determination of iodide in two medicinal formulations. Idoxuridine was determined indirectly at the same electrode by accumulating it first at -0.8 V vs. Ag/AgCl. At this potential the C-I bond in the adsorbed idoxuridine is reduced giving iodide, which is then determined at the modified electrode. The method was successfully applied to the determination of idoxuridine in a urine sample

Konsep-konsep probabilitas dalam perencanaan dan perancangan rekayasa

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Personality, internet addiction, and other technological addictions: an update of the research literature

There has been a significant shift from the view that addictions are disorders involving compulsivedrug usage to a view that non-substance related behaviors may now be considered addictions. Thereis evidence to suggest that people are showing signs of addiction to non-substance-related behaviors.Research into technological addictions, such as internet addiction, smartphone addiction and socialnetworking addiction has exponentially increased over the last decade. Understanding how technologicaladdictions relate to personality and key individual differences is important. This chapter providesrenewed empirical and conceptual insights into technological addictions and how they may be relatedto different personality types and key individual differences. The complex nature of personality andtechnological addictions is discussed together with areas for future research