Ghosh B K
Department of Psychiatry, Beth Israel Medical Center, New York City, New York 10003.
Physiol Chem Phys Med NMR. 1989;21(4):301-5.
Spin-lattice (T1-) relaxation times of fresh human blood plasma at 13.2 MHz and 29 degrees C ranged from 1263 milliseconds (msec) to 1709 msec. Spin-spin (T2-) relaxation times of those samples were between 446 msec and 753 msec. Proton magnetic resonance (p.m.r.) phantoms of such blood plasma were made with ferric chloride and corn starch in dilute hydrochloric acid, and also in dilute sulfuric acid. Their Fe3+ ion concentrations approximated 138 micrograms (micrograms) per deciliter (dl). Both T1 and T2 of any of these p.m.r. phantoms were within limits of those described above for fresh human blood plasma. Lowering of the concentration of the Fe3+ ion--in an experimental corn starch solution--was manifested in longer T1.
新鲜人体血浆在13.2兆赫及29摄氏度时的自旋晶格（T1 -）弛豫时间在1263毫秒（msec）至1709毫秒之间。这些样本的自旋 - 自旋（T2 -）弛豫时间在446毫秒至753毫秒之间。这种血浆的质子磁共振（p.m.r.）体模是用氯化铁和玉米淀粉在稀盐酸以及稀硫酸中制成的。它们的Fe3 +离子浓度约为每分升（dl）138微克（micrograms）。这些p.m.r.体模中任何一个的T1和T2都在上述新鲜人体血浆所描述的范围内。在实验性玉米淀粉溶液中，Fe3 +离子浓度的降低表现为T1延长。
