广东化工
廣東化工
엄동화공
GUANGDONG CHEMICAL INDUSTRY
2012年
6期
218-219,95
,共3页
浊点萃取%原子吸收光谱%铅
濁點萃取%原子吸收光譜%鉛
탁점췌취%원자흡수광보%연
cloud-point extraction%atomic absorption spectrometry%lead
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%。
基于5-Br-PADAP與鉛形成穩定的螯閤物能被TritonX-114濁點萃取的事實,建立瞭濁點萃取-原子吸收法測定水中微量的鉛的新方法。鉛的濃度在0~30μg/mL內呈線性,檢測限為1.7 ng/mL;相對標準偏差（n=11）為2.7%,加標迴收率為97.5%~102.5%。
기우5-Br-PADAP여연형성은정적오합물능피TritonX-114탁점췌취적사실,건립료탁점췌취-원자흡수법측정수중미량적연적신방법。연적농도재0~30μg/mL내정선성,검측한위1.7 ng/mL;상대표준편차（n=11）위2.7%,가표회수솔위97.5%~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 %.
