(1)
Saber Tehrani, M.; B. Ghasemi, J.; Taghi Baharifard, M. Simultaneous Spectrophotometric Determination of Zinc, Cadmium and Lead by Xylenol Orange Using the Partial Least Squares Method After Their Preconcentration by 5,10,15,20-Tetrakis(4-Carboxylphenyl)porphyrin on Amberlite IRA-402 Resin. ajc 2012, 24, 3078-3086.