In DOSY experiments using the BPPLED pulse sequence,
the signal intensity is generally given as:
I(q) = I0exp Dq2 [– (Δ–δ/3–τ/2)]
Johnson, C. S. Prog. Nucl. Magn. Reson. Spectrosc. 1999, 34,203.
Wu, D.; Johnson, C. S. J. Magn. Reson. A 1995, 115, 260.