NMR method of determining an amount of a component of a sample

摘要

A method of determining an amount of at least one component of a sample comprises positioning the sample in an NMR instrument having an interior magnetic field, applying at least one sequence of first π/2 and second π radio-frequency pulses to the sample using the NMR instrument, each respective second pulse being applied before the free induction signal from the first π/2 pulse has fully decayed, measuring the amplitude of each first signal produced by the application of each first radio-frequency pulse to determine an FID value, measuring the amplitude of each second signal produced by the application of each second radio-frequency pulse to determine a Spin Echo value and determining the amount of at least one component of the sample by subtracting the Spin Echo value from the FID value.