Investigation of Relaxation Times of Alcohol-Water Mixtures by Time Domain NMR Technique

Authors : Cengiz OKAY

Pages : 300-305

Doi:10.35414/akufemubid.1152842

View : 11 | Download : 8

Publication Date : 2023-05-03

Article Type : Research Paper

Abstract :Nuclear magnetic resonance insert ignore into journalissuearticles values(NMR); is important technique to probe the molecular dynamics of alcoholwater mixtures by measuring their spin-lattice insert ignore into journalissuearticles values(T1); and the spin-spin relaxation time insert ignore into journalissuearticles values(T2);. In this work, we used two different proton NMR devices to measure relaxation times: Bruker Minispec mq-20 timedomain NMR and 42MHz Magritek Spinsolve high-resolution NMR. T1 and T2 of the ethanol-water and methanol-water mixtures measured for changing concentrations from pure water to pure alcohol.The results obtained by both devices are similar with each other. The minimal values of bothrelaxation parameters are observed at volume fractions of ethanol-water and methanol-water mixtures 43% and 44%, respectively
Keywords : NMR, Spin spin durulma süresi, Spin örgü durulma süresi, Alkol su karışımları