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目的 为了常握碘盐掺拌后在自然条件下存放时间与保存方法碘的变化情况。方法 采用搅拌1/2万的碘盐分别用玻璃瓶盛装,1个加盖而另1个不加盖,并分别于每30d检测碘含量一次,共观察120d,检测5次。结果碘盐存放时间越长,碘含量消失愈多,加盖加未盖碘盐第1d碘含量均为70.2mg/kg,存放120d,其碘含量分别为57.9mg/kg和37.3mg/kg,碘消失率为17.52%和46.8%。结论 存放相同时间,不加盖碘盐的碘盐的碘含量消失比加盖碘盐高。
Purpose In order to keep iodine salt mixed with natural conditions, storage time and preservation of iodine changes. Methods Iodine salt with stirring of 1/2 000 were respectively contained in glass bottles, one was capped and the other was uncapped. The iodine content was measured once every 30 days for 120 days and detected 5 times. Results The longer the storage time of iodized salt, the more the iodine content disappeared. The iodine contents were 70.2mg / kg and 70dmg / kg for 1 d, respectively, and the contents of iodine were 57.9mg / kg and 37.3mg / kg respectively, Iodine disappearance rates were 17.52% and 46.8%. Conclusion At the same time, the iodine content of iodized salt without capped salt disappeared higher than that with iodized salt.