ELECTROCHEMICALLY MEASURING METHOD FOR POLYOLS

PURPOSE: To electrochemically measure polyols by using a predetermined quantity of boron from the first by using ferrocenyl boric acid derivative of the structure a boric acid group is bonded directly to a ferrocene ring. CONSTITUTION: Ferrocenyl boric acid derivative is represented, for example by a formula (where R , R are independently hydrogen atom 1-6C alkyl group, phenyl group, benzyl group, R , R are independently 1-6C alkyl group). In the formula, one of the R and R is hydrogen atom, the other is hydrogen atom or 1-6C alkyl group, phenyl group, and R and R are independently preferably 1-3C alkyl group. Sugar or the like and polyol or the like is electrochemically measured in solution in which electrolyte such as alkali metal, ammonium salt, acids is dissolved in solvent electrochemically in active at a measuring potential such as water. As analyzing method, a normal pulse voltammentry is particularly preferable.