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组合液膜对土壤淋洗液中砷(As)的提取效果
裴亮; 廖晓勇; 马栋
2018
Source Publication环境化学
ISSN0254-6108
Volume037Issue:009Pages:2002
Abstract针对土壤淋洗液中重金属传统萃取及液膜提取方法效率低的问题,提出组合液膜来提高提取率.本研究采用双二-乙基已基磷酸(D2EDTPA)和磷酸三丁酯(TBP)互为协同提取剂的组合液膜提取技术对土壤淋洗液中砷(As)进行提取,考察了系统温度、组合池膜溶液提取剂与膜溶剂体积比(M1/M2)、组合相有机相与水相体积比(O/A)、组合相提取剂比例(VD2EDTPA/VTBP)对As3+和As5+提取率的影响.研究结果表明,组合提取剂与As形成络合物在液膜系统中传输,最佳提取条件为:系统温度在28—30℃左右、M1/M2为4∶1、O/A为2∶1、VD2EDTPA/VTBP为4∶3.As3+和As5+起始浓度为5.45×10-4mol·L-1和1.12×10-4mol·L-1时,90 min最佳提取条件下提取率可达93.1%和82.7%.
Language英语
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/80047
Collection中国科学院地理科学与资源研究所
Affiliation中国科学院地理科学与资源研究所
First Author Affilication中国科学院地理科学与资源研究所
Recommended Citation
GB/T 7714
裴亮,廖晓勇,马栋. 组合液膜对土壤淋洗液中砷(As)的提取效果[J]. 环境化学,2018,037(009):2002.
APA 裴亮,廖晓勇,&马栋.(2018).组合液膜对土壤淋洗液中砷(As)的提取效果.环境化学,037(009),2002.
MLA 裴亮,et al."组合液膜对土壤淋洗液中砷(As)的提取效果".环境化学 037.009(2018):2002.
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