Measuring [Fe/H] abundances from synthetic spectrum for white dwarf and red dwarf at cataclysmic variable system (SU UMA type system)

[AlexSok]

Hi! I'm with my science team now processing synthetic spectrum of two main components in cataclysmic variable system (white dwarf, red dwarf), and for cemekl xspec model we need to measure abundances. How we can do this with only synthetic spectra?