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Abstract
However, it is important to take into account, first, that documented historical references about these events go back to the first half of the 19th century, so many cases existed before the invention of airplanes (1-3), and second, that a detailed search of scientific databases (Web of Science, GeoRef) regarding well-known aircraft icing processes revealed a lack of precedents that corroborate that ice formation on any part of aircraft can reach dimensions of approximately 1 m and weights of up to several hundred kilograms. Capillary electrophoresis analysis, combined with traditional wetchemical (molecular ultraviolet and visible-light spectrophotometry) of major anions (Cl^sup -^, SO^sub 4^^sup 2-^, HPO^sub 4^^sup 2-^, and HCO^sub 3^^sup -^) were performed by means of hydrostatic injection (10 cm for 30 s) at 25°C. Trace anions (F-, Br-, and NO^sub 3^^sub -^) were quantified effectively by electrokinetic injection (4 kV, 10 s) at 15°C. The results showed variability in their chemical composition patterns (13).