  Abundances of 22 chemical elements, including the key elements and isotopes
such as 12C/13C, N and O, are investigated in the spectrum of 33 Psc, a
single-lined RS CVn-type binary of low magnetic activity. The high resolution
spectra were observed on the Nordic Optical Telescope and analyzed with the
MARCS model atmospheres. The following main parameters have been determined:
T_eff = 4750 K, log g = 2.8, [Fe/H] = -0.09, [C/Fe] = -0.04, [N/Fe] = 0.23,
[O/Fe] = 0.05, C/N = 2.14, 12C/13C = 30, which show the first-dredge-up mixing
signatures and no extra-mixing.
