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基于SPE-GC-MS/MS检测技术,通过迁移模拟实验,对木制儿童用品中10种氯酚类及菊酯类木材防腐剂经模拟唾液及汗液的迁移行为进行了研究。木材防腐剂由木材内部向溶液中迁移时,主要是表面3 mm厚度层中的物质迁移出来。当阳性样品中物质初始含量相同时,各物质在模拟汗液中的迁移量明显高于在模拟唾液中的迁移量。氯酚类物质的迁移率远大于菊酯类物质,由此推测样品中木材防腐剂的迁移率与其在水中的溶解性有关。
Based on the SPE-GC-MS / MS detection technique, migration behaviors of 10 kinds of chlorophenols and pyrethrum-based wood preservatives in wood children’s products simulated by simulated saliva and sweat were studied through migration simulation experiments. Wood preservatives migrate from the interior of the wood to the solution, mainly in the 3 mm thickness of the surface. When the initial contents of the positive samples are the same, the migration amount of each substance in the simulated sweat is obviously higher than that in the simulated saliva. The migration rate of chlorophenols is much higher than that of pyrethroids, which suggests that the mobility of wood preservative in the samples is related to its solubility in water.