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dc.contributor.author郑凤英
dc.contributor.author李顺兴
dc.contributor.author韩爱琴
dc.contributor.author汪春燕
dc.contributor.author钱沙华
dc.date.accessioned2017-11-14T01:22:41Z
dc.date.available2017-11-14T01:22:41Z
dc.date.issued2006-08-20
dc.identifier.citation分析科学学报,2006,(04):34-38
dc.identifier.issn1006-6144
dc.identifier.otherFXKX200604007
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/140591
dc.description.abstract采用流动注射-氢化物发生-电热石英管原子吸收光谱法研究了超富集植物蜈蚣草对水中As(Ⅲ)的吸附行为。探讨了蜈蚣草的前处理方法、溶液pH值、吸附时间、吸附剂用量、As(Ⅲ)浓度和溶液体积等因素对蜈蚣草吸附As(Ⅲ)的吸附率的影响。结果表明,以50 mg经2 mol.L-1HCl洗脱处理后的蜈蚣草粉末为吸附剂,在pH为2.0、As(Ⅲ)浓度为20 ng.mL-1、溶液体积50 mL、吸附时间15 min条件下,蜈蚣草对As(Ⅲ)的吸附率可达86.1%,水中残余As(Ⅲ)仅为2.8 ng.mL-1。本法成本低廉、操作简便,可望直接用于地下水中As(Ⅲ)的去除。
dc.description.abstractThe adsorption performance on As(Ⅲ) in water with Pteris vittata(hyperaccumulating plant) was studied.The concentration of As(Ⅲ) in water was determined by flow injection-hydride generation-atomic adsorption spectrometry(FI-HG-AAS).The influence factors,including the pre-treatment of Pteris vittata,pH value,concentration of adsorbate,sample volume,adsorption time and amount of adsorbent were studied.The adsorption ratio of 20 ng/mL As(Ⅲ) with Pteris vittata(L) which was pre-treated by 2 mol/L HCl was 86.1% and the residual concentration of As(Ⅲ) was reduced to 2.8 ng/mL under the optimum conditions.The method was economical,manipulated simple and convenient,which could be used to remove As(Ⅲ) of groundwater directly,and met the standards of drinking water made by EU,EPA and WHO.
dc.description.sponsorship国家自然科学基金(No.40506020)
dc.language.isozh_CN
dc.subject超富集植物
dc.subject蜈蚣草
dc.subject
dc.subject吸附行为
dc.subjectArsenic
dc.subjectPteris vittata
dc.subjectHyperaccumulating plant
dc.subjectAdsorption performance
dc.subjectWater treatment
dc.title超富集植物蜈蚣草对水中As(Ⅲ)吸附行为的研究
dc.title.alternativeAdsorption Performance of Arsenic(Ⅲ) in Water on Hyperaccumulating Plant-Pteris vittata
dc.typeArticle


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