Nicholson J K, Buckingham M J, Sadler P J
Biochem J. 1983 Jun 1;211(3):605-15. doi: 10.1042/bj2110605.
Spin echo Fourier transform proton n.m.r. spectra of whole blood contain resonances from both erythrocytes and plasma. A large number of well-resolved signals from mobile protons of low-molecular-weight metabolites in plasma and serum have been identified. Spectra from the plasmas of eight animal species and commercial, quality control sera are compared. CaEDTA2- and MgEDTA2- resonances can be used for the simultaneous determination of EDTA-chelatable calcium and magnesium concentrations in intact plasma and other biological fluids. Cholesterol is too immobile to contribute to the spectra of intact plasma, but is readily estimated by n.m.r. in both its free and esterified forms after extraction into methanol.
全血的自旋回波傅里叶变换质子核磁共振谱包含来自红细胞和血浆的共振信号。已经鉴定出血浆和血清中低分子量代谢物的可移动质子产生的大量分辨率良好的信号。比较了八种动物物种的血浆和商业质量控制血清的光谱。CaEDTA2-和MgEDTA2-共振可用于同时测定完整血浆和其他生物流体中可被EDTA螯合的钙和镁的浓度。胆固醇流动性太差,对完整血浆的光谱没有贡献,但在萃取到甲醇中后,通过核磁共振很容易以游离和酯化形式进行估算。