摘要
基于5-Br-PADAP与铅形成稳定的螯合物能被TritonX-114浊点萃取的事实,建立了浊点萃取-原子吸收法测定水中微量的铅的新方法。铅的浓度在0~30μg/mL内呈线性,检测限为1.7 ng/mL;相对标准偏差（n=11）为2.7%,加标回收率为97.5%~102.5%。
A new atomic absorption spectrometry after cloud point extraction method for the determination of trace lead was developed.The method was based on the fact of cloud-point extracted chelate engendered by 5-Br-PADAP and lead.The linear range for the determination of Pb2＋ found was C（Pb（Ⅱ））=0~30 μg/mL and the detection limit found was L（Pb（Ⅱ））=1.7 ng/mL and RSD（n=11） found was 2.7 %.The values of recovery of Cd in natural water samples were ranged from 97.5 % to 102.5 %.
出处
《广东化工》
CAS
2012年第6期218-219,95,共3页
Guangdong Chemical Industry
关键词
浊点萃取
原子吸收光谱
铅
cloud-point extraction
atomic absorption spectrometry
lead
