黔西南州主产区茶叶中铅、铜、砷含量测定及评价

The Main Tea Producing Areas in Qianxi Prefecture and Evalu ation of Lead, Copper, Arsenic Content Determination

本文收集了贵州省黔西南州主产区茶叶样品25批次,对其进行铅、铜、砷含量测定分析。测定结果:铅的含量0.0~0.4 mg/kg,铜的含量7.6~44.8 mg/kg,砷的含量在0.0~0.3 mg/kg。所测重金属含量均远远低于国家标准,证明贵州主产区茶叶重金属(铅、铜、砷)质量状况安全良好。

This collection of Guizhou province Qianxi Prefecture tea producing areas of 25 batches of samples, the arsenic content of lead, copper, determination and analysis. The results showed that the content of lead was 0.0 - 0.4 mg/kg, the content of copper was 7.6 - 44.8 mg/Kg, and the content of arsenic was 0.0 - 0.3 mg/kg. The contents of heavy metals were much lower than the national standards, which proved that the quality of heavy metals （lead, copper and arsenic） in tea produced in the main producing areas of our country was in good condition.