Context : The study of chemical abundance patterns in globular clusters is of key importance to constrain the different candidates for intra-cluster pollution of light elements .

Aims : We aim at deriving accurate abundances for a large range of elements in the globular cluster 47 Tucanae ( NGC 104 ) to add new constraints to the pollution scenarios for this particular cluster , expanding the range of previously derived element abundances .

Methods : Using tailored 1D LTE atmospheric models together with a combination of equivalent width measurements , LTE , and NLTE synthesis we derive stellar parameters and element abundances from high-resolution , high signal-to-noise spectra of 13 red giant stars near the tip of the RGB .

Results : We derive abundances of a total 27 elements ( O , Na , Mg , Al , Si , Ca , Sc , Ti , V , Cr , Mn , Fe , Co , Ni , Cu , Zn , Y , Zr , Mo , Ru , Ba , La , Ce , Pr , Nd , Eu , Dy ) .
Departures from LTE were taken into account for Na , Al and Ba .
We find a mean [ Fe/H ] = -0.78 \pm 0.07 and [ \alpha / { Fe } ] = 0.34 \pm 0.03 in good agreement with previous studies .
The remaining elements show good agreement with the literature , but the inclusion of NLTE for Al has a significant impact on the behaviour of this key element .

Conclusions : We confirm the presence of an Na-O anti-correlation in 47 Tucanae found by several other works .
Our NLTE analysis of Al shifts the [ Al/Fe ] to lower values , indicating that this may be overestimated in earlier works .
No evidence for an intrinsic variation is found in any of the remaining elements .