| 磁性纳米粒子富集-电感耦合等离子体发射光谱法测定食具中铬、镍、镉、铅、砷的迁移量 |
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| 引用本文： | 庞晋山,邓爱华,陈进,毛凌波,朱杰.磁性纳米粒子富集-电感耦合等离子体发射光谱法测定食具中铬、镍、镉、铅、砷的迁移量[J].分析化学,2011(9):1363-1367. |
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| 作者姓名： | 庞晋山 邓爱华 陈进 毛凌波 朱杰 |
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| 作者单位： | 新会出入境检验检疫局;西安科技大学材料学院;广东工业大学材料与能源学院; |
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| 摘 要： | 采用氩电弧等离子体法制备磁性碳包铁纳米粒子,考察了其对水溶液中Cr,Ni,Cd,Pb和As的富集能力,建立电感耦合等离子体原子发射光谱同时测定食具中Cr,Ni,Cd,Pb和As迁移量的分析方法。研究了纳米粒子表面经H2O2处理后,pH值、吸附时间、吸附剂用量等因素对各元素富集效率的影响。结果表明,H2O2表面处理可有效提高纳米粒子对待检元素的吸附率。在pH 8.0～9.5范围内,选用30 mg碳包铁纳米粒子定量富集,振荡3 min后,Cr,Ni,Cd,Pb和As均可被磁性碳包铁纳米粒子定量富集,酸性溶液(pH 1～2)可洗脱吸附离子。采用本方法测定了实际样品,各元素回收率在87%～106%之间。
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| 关 键 词： | 碳包铁纳米粒子 重金属迁移量 磁性分离富集 |
Determination of Migration Quantity of Cr,Ni,Cd,Pb and As in Food Containers by Magnetic Carbon-coated Iron Nanoparitcles Separation/Enrichment-Inductively Coupled Plasma Atomic Emission Spectrometry |
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| PANG Jin-Shan,DENG Ai-Hua,CHEN Jin,MAO Ling-Bo,ZHU Jie.Determination of Migration Quantity of Cr,Ni,Cd,Pb and As in Food Containers by Magnetic Carbon-coated Iron Nanoparitcles Separation/Enrichment-Inductively Coupled Plasma Atomic Emission Spectrometry[J].Chinese Journal of Analytical Chemistry,2011(9):1363-1367. |
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| Authors: | PANG Jin-Shan DENG Ai-Hua CHEN Jin MAO Ling-Bo ZHU Jie |
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| Institution: | PANG Jin-Shan1,DENG Ai-Hua1,CHEN Jin2,MAO Ling-Bo3,ZHU Jie1 1 2 3 |
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| Abstract: | The adsorption behavior of Cr,Ni,Cd,Pb and As on magnetic carbon-coated iron nanoparticles which was synthesized by carbon arc discharge technology was investigated.A method for the simultaneous determination of Cr,Ni,Cd,Pb and As migration quantity in food containers by ICP-AES was established.The conditions for chemical treatment of carbon-coated iron by H2O2,pH values for solution,time of adsorption,amounts of adsorbent,the co-existent ions were considered.The results showed that adsorption property of c... |
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| Keywords: | Carbon-coated iron nanoparticle Heavy metal migration quantity Magnetic separation and concentration |
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