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. 2012 Feb 2;117:1–60. doi: 10.6028/jres.117.001

Table 5.

Approximate dipole moments

Material Dipole Moment (D)
H2O 1.85
CO 0.12
NaCl 9.00
Typical protein 500
Peptide 3.7
Amino acid 20
Polypeptide 1000