*** It technically represents the amount the frequency of whatever is being analyzed is shifted from the signal from TMS (which is used for calibration and whose peak is considered 0).
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*** It technically represents the amount the frequency of whatever is being analyzed is shifted from the signal from TMS (which is used for calibration and whose single peak is considered 0).
*** Also, 0 starts from the right side. Higher frequencies are to the left 0 on the X-Axis (Historical Quirks)
*** Also, 0 starts from the right side. Higher frequencies are to the left 0 on the X-Axis (Historical Quirks)
*** Technically, we are measuring how many Hertz higher something is than where the signal for TMS is.
*** Technically, we are measuring how many Hertz higher something is than where the signal for TMS is.
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*** In practice, we never use Hz because the amount of shift would depend on the strength of the NMR we have. Since it would be nice to sensibly compare data across different instruments, the amount of Hertz shift is divided by the frequency of the instrument. We call this value PPM.
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*** In practice, we never refer to this in Hz because the amount of shift would depend on the strength of the NMR we have. Since it would be nice to sensibly compare data across different instruments, the amount of Hertz shift is divided by the frequency of the instrument. We call this value PPM.