Such a film, on a silicon substratum, was dissolved in HF (1:10) (1ml), and the soln. was treated with Al2(SO4)3 (1g), H2O(to give 90ml), aq.NH3(to produce pH5) and more H2O (to 100ml). Silicon in 10ml of the resulting soln. was determined via formation of molybdosilicic acid and its reduction to molybdenum blue, with measurement at 825nm; Beer's law was obeyed for 5 to 20ug of Si
Origin
Unknown
Journal Title
Zh Analit Khim 30 9 1975 1838-1839
Sector
Primary Papers
Class
PP 1272