顺磁性掺杂琼脂糖凝胶中的弛豫时间与温度和离子浓度的函数关系。
Relaxation times in paramagnetically doped agarose gels as a function of temperature and ion concentration.
作者信息
Howe F A
机构信息
Department of Medical Electronics and Physics, St. Bartholomew's Hospital Medical College, London, England.
出版信息
Magn Reson Imaging. 1988 May-Jun;6(3):263-70. doi: 10.1016/0730-725x(88)90400-6.
PMID:3398732
Abstract
Tissue equivalent gels of NMR phantoms have been investigated at 3.4 MHz. The proton T1 and T2 relaxation times have been measured in Ni++ and Cu++ doped agarose gels as a function of temperature and ion concentration. Ni-agarose gels have the lower T1 temperature dependence, but gels containing both Cu++ and Ni++ can be produced for which T1 has virtually no temperature dependence.
摘要
已在3.4兆赫频率下对核磁共振体模的组织等效凝胶进行了研究。在掺有Ni++和Cu++的琼脂糖凝胶中测量了质子T1和T2弛豫时间，作为温度和离子浓度的函数。镍琼脂糖凝胶的T1对温度的依赖性较低，但可以制备出同时含有Cu++和Ni++的凝胶，其T1几乎与温度无关。
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