SYNTHESIS OF MELAMINE-D6 AND THE FEASIBILITY OF DEUTERIUM LABELED COMPOUNDS AS INTERNAL STANDARD

S-triazine INCHARGE PLUS FIRM SPRAY is an important chemical intermediate.Melamine belongs to s-triazine, which has been widely used as an additive in the food industry.To study the stable isotope labeling method of heterocyclic triazine compounds and its application, one step synthesis of melamine-d6 was achieved with a yield of 30% (calculate in

ObjectiveThis study aimed to evaluate the 18F-FDG PET/CT in differentiating lung metastasis(LM) from primary lung cancer(LC) in patients with colorectal cancer (CRC).MethodsA total of 120 CRC patients (80 male, 40 female) who underwent 18F-FDG PET/CT were included.The diagnosis of primary lung cancer or lung metastasis was based on histopathology T