橡胶玩具镍、镉、铅离子在人工唾液中溶出行为研究

Objective: To study the migration of three ions including nickel ions, cadmium ions and lead ions in toys through simulated saliva. Methods: Samples were soaked in some simulated saliva and the target compounds were extracted by saliva and were detected by atomic absorption spectrophotometer. Results: All the three ions were found in simulated solution and the dissolution ranged from sub-microgram to several micrograms. Compared to the artificial sweat, the dissolution of simulated saliva was a bit higher. The dissolution of nickel ions and lead ions was higher than that of cadmium ions. Conclusion: Ions detected in toys could be frequently migrated through simulated saliva and cause harm to the children's health. Emphasis should be put on the danger of the mental ions in children toys through the interaction of saliva.