Patent ID: 7396691
Filing Date: 2008-07-08
Classification: G01N,Y10T

Abstract:
1. A method for detecting and/or measuring the concentration of fluoride (F − ) or hydrogen fluoride (HF) in a sample, comprising contacting, in aqueous solution, said sample with a silylated organic compound in order to obtain a measurement solution, wherein said silylated organic compound being desilylated when it is in the presence of hydrofluoric acid or of fluoride, and wherein the silylated organic compound and the desilylated organic compound being able to be detected and/or measured separately from each other; and detecting and/or measuring, in said measurement solution, the appearance of the desilylated organic compound, or the disappearance of the silylated organic compound, which takes place if fluoride or hydrogen fluoride is present in the sample, wherein said silylated organic compound is: in which R 1 , R 2 and R 3 are independently selected from C 1 to C 6 alkyls and R 4 is an organic compound.