Original papers
Thermogravimetric Measurement of the Distribution Coefficients of Maltooligosaccharides upon a Cation-exchange Resin
1995 年 1 巻 1 号 p. 34-37
詳細
1995 年 1 巻 1 号 p. 34-37
Thermogravimetry under nitrogen atmosphere was applied to measure the distribution coefficients of maltooligosaccharides upon a cation-exchange resin. Thermal degradation of the solute occurred at about 200°C and its weight decreased gradually with increases in temperature, while that of the resin occurred above 350°C. The solute distributed in the resin also degraded at that temperature. Thus, it was demonstrated that thermogravimetry was applicable to measurement of the distribution coefficient. The coefficients determined by this method coincided well with those determined by the conventional method. Because the amount of solute distributed in the resin became large when the bulk concentration of solute was high, the thermogravimetric determination of the amount was more accurate. Thus, this technique was useful for the measurement of the coefficient at higher bulk concentrations of solute.
