南昌市卡片类玩具和文具中铅含量的调查

Investigation on the Content of Lead in Card Toys and Stationeries for Children of Nanchang City

目的 了解南昌市市场上儿童文具和卡片类玩具中铅的含量。方法 抽检市售铅笔样品 2 4份、2种品牌蜡笔样品2 0份、卡片贴纸 16份 ,用火焰原子分光光度计测定铅含量 ,对结果进行统计分析。结果 儿童铅笔中的铅含量为(12 9.90± 5 2 .5 3 )mg/kg ,蜡笔中的铅含量为 (5 5 .15± 2 1.2 3 )mg/kg ,玩具卡片贴纸中铅含量为 (75 .2 9± 2 4.65 )mg/kg ,经过统计分析发现 2种蜡笔铅含量差异有显著性 ,铅笔、蜡笔和卡片类玩具之间差异亦均有显著性。结论 60份儿童文具和玩具铅含量大都符合国家标准 ,仅有 1份铅笔样品超过国家标准。为保护儿童身体健康 ,国家应完善管理措施 ,尽可能降低其中铅含量。

To learn the contents of lead in card toys and stationeries for children of Nanchang City. Atomic absorption spectrometry was used to determine the randomly selected 24 samples of pencils, 20 samples of crayons of two kinds and 16 samples of cards. The result was statistically analyzed. The contents of lead in children's pencils, crayons and cards were (129.90±52.53)mg/kg, (55.15±21.23)mg/kg and (75.29±24.65) mg/kg respectively. The statistic analysis showed that the contents of lead in 2 kinds of crayons possessed significant difference. Significant difference also exists among pencils, crayons and cards. [Conclusion] All the 60 samples except for 1 accord with the national standard for lead content in stationeries and toys for children. Effective measures should be taken to decrease the content of lead in children's stuff in order to protect children's health,