The T1 value is equal to 1/G, in the current fit, G is and thus T1 is 13.7 s.ħ (7) To determine the T1 of another peak, first click the icon circled in red in the Data Analysis window shown below and choose Integrals, then select another peak in the spectrum. Afterselecting the three parameterexponentialfit equation, click Calculate (circled in blue) to perform the T1 data fitting. For T1 data fitting, a three parameter exponential fit of B+F*exp(-x*G) is employed since the signal M(t) is defined by the equation of M(t)=M O (1-2e -t/t1 ), where t is the inversion recovery delay and M O is the signal at thermal equilibrium state. A window will pop up showing the fitting functions to be used (see picture on the right side). 6 (6) Next, in the Data Analysis window (see picture on the left side), double click the box right beneath Y (X) and click the button with three dots (circled in red).
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