摘要
文章采用浊点萃取-电感耦合等离子体质谱法测定高矿化度水中的稀土元素,高矿化度水中的稀土元素与8-羟基喹啉生成疏水性络合物,经水浴加热,稀土元素络合物被萃取到TritonX-114表面活性剂相。对影响浊点萃取效率的主要因素进行分析,发现检出限为0.002~0.005μg/L,实际水样的加标回收率为93.3%~107.1%,测定结果的相对标准偏差(RSD)为2.12%~3.53%。
This study determined the contents of rare earth elements in highly mineralized water using inductively coupled plasma mass spectrometry with cloud point extraction.Hydrophobic complex,generated from the rare earth elements in high salinity water and 8-hydroxyquinoline,was extracted into tritonx-114 surfactant phase by water bath heating.Analysis of the main factors affecting the extraction efficiency of turbidity point shows that the detection limits are 0.002~0.005μg/L,the recovery of actual water samples ranges from 93.3%~107.1%and the measured relative RSD values are 2.12%~3.53%.
作者
蔡述伟
程青
李华玲
黄海波
CAI Shu-wei;CHENG Qing;LI Hua-ling;HUANG Hai-bo(Nanjing Center,China Geological Survey,Nanjing 210016,China)
出处
《华东地质》
2019年第4期317-320,共4页
East China Geology
基金
国家自然科学基金“南通地区浅层地下水中稀土元素分布特征及其示踪意义(编号:41302209)”项目资助
关键词
稀土元素
电感耦合等离子体质谱法
浊点萃取
高矿化度水
rare earth elements
inductively coupled plasma mass spectrometry
cloud point extraction
high salinity water
