ABSTRACT More than a decade has passed since the definition of globular cluster (GC) changed, and now we know that they host multiple populations (MPs). But few GCs do not share behaviour Ruprecht 106 is one these clusters. We analysed 13 member red giant branch stars using spectra in wavelength range 6120–6405 Å obtained through GIRAFFE Spectrograph, mounted at UT2 telescope Paranal, as well w...