摘要
用火焰原子吸收光谱法对污泥中Cu,Zn,Ca,Cr,Mg,K,Cd和Pb8种微量元素进行分析测定。结果显示,用硝酸一高氯酸(1:4)混酸作消化液处理样品,消解较完全;污泥中含有较丰富的Ca、Mg、K、Zn和Cu,但也检出了有毒金属Cr、Cd和Ph。方法的检出限均小于0.098μg/mL,RSD≤1.12%,加标回收率为91.2%~98.2%。测定结果为控制、处理和资源化污泥提供了理论依据。
The contents of the copper, zinc, calcium, chromium, magnesium, potassium, cadmium and plum- bum in activated sludge were detected by Flame Atomic Absorption Spectrophotometry. The result was that: nitric acid and perchloric acid(1:4) clear up sample; the detection limit of method was less than 0. 098μg·mL-1 , the re- lative standard deviation (RSD) of the eight contents was less than 1. 12%, and the percentage of recovery was 91.2%~98.2%. It can be used to control, dispose and comprehensively utilize activated sludge.
出处
《三峡环境与生态》
2008年第1期22-23,34,共3页
Environment and Ecology in the Three Gorges
基金
重庆市科技攻关项目(CSTC
2005AB7030-3)
关键词
原子吸收光谱法
活性污泥
金属元素
atomic absorption spectrometry
activated sludge
metallic element