  Magnetochiral phenomena may be responsible for the selection of chiral states
of biomolecules in meteoric environments. For example, the Supernova Amino Acid
Processing (SNAAP) Model was proposed previously as a possible mode of
magnetochiral selection of amino acids by way of the weak interaction in strong
magnetic fields. In earlier work, this model was shown to produce an
enantiomeric excess (ee) as high as 0.014% for alanine. In this paper we
present the results of molecular quantum chemistry calculations from which
$ee$s are determined for the alpha-amino acids plus isovaline and norvaline,
which were found to have positive ees in meteorites. Calculations are performed
for both isolated and aqueous states. In some cases, the aqueous state was
found to produce larger $ee$s reaching values as high as a few percent under
plausible conditions.
