Inexpensive and versatile method for trace Sn(II) and Sn(IV) ions in food samples by CPE/FAAS

► The proposed method provides sensitivity for FAAS that comparable the mentioned methods in literature. ► Furthermore, the linear calibration range of the presented method is fairly wider when compared to those of literature. ► The obtained enrichment factor is better than all methods in literature. ► Detection limit of the proposed method is the best compared with literature.