Effect of Minerals Dissolved in Water on Half-width of NMR Spectrum

Author: Adachi Y//Aoki T//Yoshihuku Y//Yoshida K////
College of Business Administration and Information Science, Chubu University (Aichi, Japan)//Faculty of Engineering, Chubu University (Aichi, Japan//Kumamoto National College of Technology (Kumamoto, Japan)
Conference/Journal: J Intl Soc Life Info Science
Date published: 1999
Other: Volume ID: 17 , Issue ID: 1 , Pages: 118-120 , Word Count: 93

An EQR irradiation causes a half-width (Hw) change of 17O-NMR spectrum of a mineral water. But the difference of Hws before and after EQR irradiation depends on a kind of water. The Hw strongly depends on the pH value. Then pH change must be considered to study the effect of EQR irradiation on mineral waters. However, pH values of mineral waters placed in the laboratory under the same condition do not change so much, indicating that the half-width change by EQR irradiation is the result of the structural change of the mineral water.