Patent ID: 7943117
Filing Date: 2011-05-17
Classification: A61K

Abstract:
1. A method for testing radiochemical purity of Tc-99m-TRODAT-1, comprising steps of: (A) obtaining a Tc-99m-TRODAT-1 solution as a sample; and (B) processing an test through a high performance liquid chromatography (HPLC), said HPLC comprising steps of: wherein said eluent is obtained by mixing acetonitrile and 5 millimolars of 3,3-dimethylglutaric acid (DMGA) with a pH value of 7; wherein said eluent is delivered to said chromatography column in a speed between 0.5 milliliters per minute (ml/min) and 3 ml/min; wherein said chromatography column is a C-18 column; wherein said sample is injected into said chromatography column in an amount between 0.5 microliters (μl and 3 μl; and wherein said detector is a radio-detector; wherein the said chromatography results in a separation of two diastereomer peaks;