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Unformatted text preview: additional Hz is contributed by magnet inhomogeniety, what is the T 2 * ? If we multiplied the FID from the last case by an exponential with decay constant of 1s before Fourier transformation, what is the T * 2 ? 4) You are going to acquire a 13 C spectrum of a compound with a 5 sec T 1 and 0.3 sec T 2 * for most carbons. You anticipate resonances over a 200 ppm region at 50 MHz. What values for the following acquisition and processing parameters would you choose in order to optimize signal to noise with minimal sacrifice in spectral resolution and dispersion: a) acquisition time b) number of time domain points c) pulse angle d) delay between acquisitions e) line broadening...
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- Fall '11