Studies on Boric Acid and Borates. (I) : The Effect of Boric acid and of Borates on the PoIarographic Wave of Fructose

It is konwn that fructose gives a well-defined wave in 0.02M-lithium chloride or hydroxide solution and boric acid or borate reacts with polyalcohols such as mannitol or glycerol to form the complex.In this report, an effect of boric acid and of borate on the polarographic wave of fructose was studied.The fructose wave is depressed markedly by the addition of boric acid or borate.The mole ratio of boron to fructose in this complex are determined to be approximately 1 to 1 by amperometric titration.