RT Journal Article SR Electronic T1 An Alternative Method for Determining the Radiochemical Purity of 99mTc-Tetrofosmin JF Journal of Nuclear Medicine Technology JO J. Nucl. Med. Technol. FD Society of Nuclear Medicine SP 51 OP 54 DO 10.2967/jnmt.110.080788 VO 39 IS 1 A1 Kanak C. Amin A1 Sagar Patel A1 Aniruddha Doke A1 Gopal B. Saha YR 2011 UL http://tech.snmjournals.org/content/39/1/51.abstract AB The instant thin-layer chromatographic method of determining the radiochemical purity of 99mTc-tetrofosmin recommended by the manufacturer uses a mixture of acetone and dichloromethane (35:65 v/v) as the solvent and a silica gel (SG) strip as the solid phase. Currently, SG strips are not available commercially and an alternative solid phase is needed. The present study reports that silicic acid strips are an appropriate substitute for SG strips for the chromatographic method using the same solvent mixture but mixed in a reverse ratio (65:35 v/v). The 2 methods yielded similar values (within 1 SD) of radiochemical purity for 99mTc-tetrofosmin.