两种方法测定固体废物中铅的比较研究

分别采用石墨炉原子吸收法和火焰原子吸收法测定固体废物中的铅,结果表明,两种方法测定固体废物中的铅都具有良好的线性、精密度和准确度,无显著性差异。石墨炉原子吸收法的检出限更低,适用于较低浓度固体废物中铅的测定。火焰原子吸收法线性范围宽、分析速度快,在大批量固体样品分析中更具优势。

The lead in solid waste was determined by GFAAS and FAAS. The results show that both methods have good linearity, precision and accuracy, there is no obvious difference. The detection limit of GFAAS is lower, which is suitable for the determination of lead in lower concentration of solid waste. The FAAS has a wide range of linear range and fast analysis, which is more advantageous in the analysis of bulk solid samples.