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| PROCESSING YOUR DATA | |||
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Operations on the NMR spectrum.
To access help with a specific NUTS operation, click here. |
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| Baseline correction | |||
| Even after your spectrum has been properly phased, you may notice some undulations in the baseline. These arise from residual imperfections in the original signal that have not yet been removed. They are most easily dealt with by simply fitting the baseline roll to a polynomial, which is then substracted from the spectrum. Good approximations to the appropriate polynomial are usually obtained by allowing the analysis software to calculate the best fit. It is particularly important to perform a baseline correction if you intend to measure the peak areas. | |||
| To perform baseline correction in NUTS, type bc. In this context, this command has a different meaning than it did previously. In the examples below, note that the spectral baseline is not evenly displaced from the red horizontal line across its width before correction. Position your mouse over the figure to view the corrected spectrum (click here for larger images): | |
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