Calculation, delay coil

The calculation of the delay coils required for the determination of phosphate may serve as an example. 

We measured the spin-lattice relaxation time Ti by using the standard tt-t-tt/2 sequences. As an example of inversion recovery kinetics, results for (MA-St)n in the coil form at otj = 0.87 and 35 C is shown in Figure 7, where the delay time between 180° and 90° pulses is shown. At a glance, it is understood that both the Tj-values of the side chain and backbone protons do not coincide with each other. The Tj can simply be calculated by the null-method.34 However, it is prefered to calculate it by use of the following general formulae of inversion recovery kinetics under an assumption of single exponential decay function ... 

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