聚合松香中锌含量的火焰原子吸收法直接测试研究

DIRECT DETERMINATION OF ZINC IN POLYMERIZED ROSIN BY FLAME ATOMIC ABSORPTION SPECTROMETRY

利用９５％乙醇作溶剂，采用火焰原子吸收法直接测定聚合松香中的锌含量，国内未见类似报道，此方法非常适合在林化企业中推广使用。

Using 95% ethanol as the solvent,we directly determined zinc in polymerized rosin by flame atomic absorption spectrometry.The recovery rate is from 100 to 103 percent.The relative standard deviation (RSD) of the determination is between 1 1—4 1%.The sensitivity is high and the characteristic concentration reaches 0 0077μg·mL -1 /1%.The method is quite significant in forestry chemical works with its simplicity and efficiency.