Boulanger Y, Vinay P
Institut de Génie Biomédical, Université de Montréal, Québec, Canada.
Magn Reson Med. 1990 Nov;16(2):246-51. doi: 10.1002/mrm.1910160206.
The NMR visibility of 39K and 35Cl has been investigated in erythrocytes and in dog renal tubules. In erythrocytes, the 39K NMR visibility was determined by comparing the signal intensities before and after hemolysis with water and by comparing the NMR and flame photometry results. Both procedures showed a NMR visibility of 100% for intracellular potassium. The visibility of intracellular chloride in erythrocytes was estimated at 40% by monitoring the intensity of the 35Cl signal as a function of the hematocrit value. In the case of kidney proximal tubules, the 39K visibility appeared to be very low but could not be accurately determined due to the low sensitivity of the nucleus. The 35Cl signals for intracellular chloride in renal tubules were too broad to be detected.
对红细胞和犬肾小管中³⁹K和³⁵Cl的核磁共振（NMR）可见性进行了研究。在红细胞中，通过比较溶血前后与水的信号强度以及比较NMR和火焰光度法的结果来确定³⁹K的NMR可见性。两种方法均显示细胞内钾的NMR可见性为100%。通过监测³⁵Cl信号强度随血细胞比容值的变化，估计红细胞内氯化物的可见性为40%。在肾近端小管的情况下，³⁹K的可见性似乎非常低，但由于原子核的低灵敏度而无法准确测定。肾小管中细胞内氯化物的³⁵Cl信号太宽而无法检测到。
