火焰原子吸收光谱法测定食盐中痕量铅

Determination of Trace Lead in Salt by FAAS

对巯基棉富集 Pb( )的条件作了研究 ,经过巯基棉分离富集后 ,用火焰原子吸收光谱法测定了食盐中的痕量铅 ,实验回收率 97.3%— 97.5 % ,RSD<5 %。方法简便 。

The enriching and separating conditions of lead were studied. The trace lead in salt was determined by FAAS after enriching and separating with sulfhydryl cotton.The recovery is in the range of 97.3%-97.5% and the RSD is less than 5%. The proposed method is simple and convenient.