Headspace single-drop microextraction coupled to microvolume UV–vis spectrophotometry for iodine determination

Headspace single-drop microextraction has been combined with microvolume UV–vis spectrophotometry for iodine determination. Matrix separation and preconcentration of iodide following in situ volatile iodine generation and extraction into a microdrop of N,N′-dimethylformamide is performed. An exhaustive characterization of the microextraction system and the experimental variables affecting iodine generation from iodide was carried out. The...