Department of Applied Chemistry, Faculty of Engineering, Osaka Institute of Technology, 5-16-1 Omiya, Asahi, Osaka, 535-8585, Japan.
Analyst. 2011 Mar 7;136(5):897-900. doi: 10.1039/c0an00687d. Epub 2011 Jan 6.
A novel method for evaluation of ion-selective electrode membranes was reported with the proton spin-spin relaxation time T(2) by pulsed NMR. The proton spin-spin relaxation time T(2) measurements provided valuable information about properties of the whole membrane matrix. The softer potentiometric liquid membrane possessed a large fraction F(L) providing relatively longer T(2) value. Pulsed NMR method can quantify the degree of the plasticization of ion-selective electrode membranes.
一种新的评价离子选择性电极膜的方法是通过脉冲 NMR 测量质子自旋-自旋弛豫时间 T(2)。质子自旋-自旋弛豫时间 T(2)测量提供了关于整个膜基质性质的有价值的信息。较软的电位测定液膜具有较大的分数 F(L)，提供相对较长的 T(2)值。脉冲 NMR 方法可以定量离子选择性电极膜的增塑程度。
