摘要
建立了一种微波消解样品,平台石墨炉原子吸收法测定活性污泥中Cu、Pb含量的方法,该方法的样品加标回收率Cu为95.6%～98.3%,Pb为92.3%～97.0%,相对标准偏差RSD(%):Cu为1.0%～2.0%,Pb为2 0%～2.9%,检验限Cu为0.0052ng/g,Pb为0.0073ng/g,该方法应用于活性污泥中Cu、Pb的分析,实验所需时间短,取样量少,空白值低,实验过程中样品损失少,准确度和灵敏度高,结果令人满意.
Copper and lead in activated sludges were determined successfully by platform graphite furnace atomic absorption spectrometry, digest sample by microwave-heating in a tightly closed PTEF vessel. Under the experiment condition, RSD of copper was in the range of 1.0%～2.0%, recoveries 95.6%～98.3%, and detection limit 0.005 2 ng/g. RSD of lead was in the range of 2.0%～2.9%,recoveries 92.3%～97%, and detection limit 0.007 3 ng/g. The feasibility of this method was proved by the satisfactory results obtained in the analyses of three sludge samples.
出处
《分析测试技术与仪器》
CAS
2004年第1期34-37,共4页
Analysis and Testing Technology and Instruments
