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GYROMAGNETIC RESONANCE METHOD AND APPARATUS FOR OBTAINING SPIN-SPIN COUPLING CONSTANTS
GYROMAGNETIC RESONANCE METHOD AND APPARATUS FOR OBTAINING SPIN-SPIN COUPLING CONSTANTS
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机译：获得自旋-自旋耦合常数的陀螺共振方法和装置
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摘要
Spin-spin coupling constants are obtained by exciting and detecting a decaying train of time displaced spin echo resonances of a plurality of spin-spin coupled groups of gyromagnetic resonators, such as a group of chemically shifted homonuclear atomic nuclei, within a sample under analysis. The envelope of the peak amplitude of the train of spin echo resonances decays and is modulated in accordance with the spin-spin coupling constants. The modulated envelope is Fourier analyzed to separate the individual Fourier frequency components, each component corresponding to one-half the sums and differences of the different spin-spin coupling constants, whereby a spectrum of spin-spin coupling constants is obtained which is free of magnetic field inhomogeneity effects and chemical shifts.
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