The use of mercaptoacetyltriglycine (MAG3) as a radiopharmaceutical is well known. The MAG3 is formerly called Technetium-99m (99mTc) mercaptoacetyltriglycine and it is the standard radiopharmaceuticals for renal scintilography . In this study we propose three methodologies based on the use of a new stationary phase (paper Hahnemuhle) and a mobile phase. The results showed that all the three conditions were very close, and for this reason can be interchangeable.Colegio de Farmacéuticos de la Provincia de Buenos Aires