摘要
本文提出了一个连续测定江河水中痕量Pb、Cu、Co的分析方法,我们以氯化三辛基甲胺为萃取剂,在HBr溶液中调整萃取条件富集、分离Pb、Cu、Co,然后用原子吸收定量。该法具有灵敏度高,快速,重现性好等优点,并成功的应用于松花江水中重金属的分析。铅铜钴的灵敏度分别为0.8、0.5、0.4ppb。
A method of continuous determination of trace metals, Pb, Cu and Co in water is reported.(C6H13)3N+CH3Cl- was used as an extractan in the HBr solution.By control of various conditions, Pb, Cu, Co was extar-cted from each other,then was quantitatively determned by AAS.This method was charaterized by high sensitivity,time saving and good reproductivity.Thismethod was well utilized for ditermination of some heavy metals in Songhua river.The sensitivity of Pb,Cu and Co was found to be 0.8, 0.5 and 0.4 ppb respectively.
出处
《黑龙江大学自然科学学报》
CAS
1989年第1期37-41,58,共6页
Journal of Natural Science of Heilongjiang University
关键词
溶剂
萃取
水
原子吸收光谱
铅
铜
solvent extraction, atomic absorption,lead,copper,cobalt
