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| D401螯合树脂柱分离富集ICP—OES法测定水中的痕量Cu^2＋、Pb^2＋、Cd^2＋ | |
| 引用本文： | 乔小宇,李洪,李华昌,于力,刘英.D401螯合树脂柱分离富集ICP—OES法测定水中的痕量Cu^2＋、Pb^2＋、Cd^2＋[J].合成材料老化与应用,2013,42(2):18-20,39. |
| 作者姓名： | 乔小宇 李洪 李华昌 于力 刘英 |
| 作者单位： | 1. 桂林理工大学化学与生物工程学院,广西桂林541004;北京矿冶研究总院测试研究所,北京102600 2. 中国合格评定国家认可委员会,北京,100062 3. 北京矿冶研究总院测试研究所,北京,102600 |
| 摘 要： | 提出了采用自制的D401螯合树脂柱分离富集一电感耦合等离子体原子发射光谱（ICP—OES）法测定水中痕量Cu^2＋、Pb^2＋、Cd^2＋的分析方法。探讨并确定了分离富集和仪器的最佳条件。试验表明，在优化的试验条件下Cu^2＋、Pb^2＋、Cd^2＋可被D401螯合树脂柱定量吸附，可采用25mLl．5mol／L的HNO，溶液完全洗脱，动态饱和吸附容量分别为101．9、205．3、176．7mg／g，方法测定Cu^2＋、Pb^2＋、Cd^2＋的检出限（3σ）分别为0．00041、0．00083、0．000361xg／mL，相对标准偏差（RSD，n=7）分别为2．3％、2．8％、3．1％，加标回收率在93．0％～104．0％之间，测定结果与电感耦合等离子体质谱法基本一致。 |
| 关 键 词： | D401螯合树脂 分离富集 电感耦合等离子体原子发射光谱法 |
ICP-OES Determination of Trace Amounts of Cu2+ , Pb2+ and Cd2+ in Water after Separation and Enrichment by D401 Chelating Resin Column |
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| QIAO Xiao-yu , LI Hong , LI Hua-chang , YU Li , LIU Ying.ICP-OES Determination of Trace Amounts of Cu2+ , Pb2+ and Cd2+ in Water after Separation and Enrichment by D401 Chelating Resin Column[J].Synthetic Materials Aging and Application,2013,42(2):18-20,39. | |
| Authors: | QIAO Xiao-yu LI Hong LI Hua-chang YU Li LIU Ying |
| Affiliation: | 1,2(1 College of Chemistry and Biology Engineering,Guilin University of Technology,Guilin 541004,Guangxi,China; 2 Sub-Institute of Analytical Chemistry,Beijing General Research Institute of Mining and Metallurgy,Beijing 102600,China;3 China National Accreditation Service for Conformity Assessment,Beijing 100062,China) |
| Abstract: | A new analytical method was proposed to determine trace amounts of Cu^2 ＋ , Pb^2 ＋ and Cd^2 ＋ in water by inductively coupled plasma emission spectrometry （ ICP -OES） after separation and enrichment by D401 chelating resin column. The optimum condition of separation, enrichment and the instrument have been discussed and determined. Test shows that, Cu^2 ＋ , Pb^2 ＋ and Cd^2 ＋ can be quantitative adsorbed by D401 chelating resin column under the optimum conditions, and be completely desorbed by 25 mL of 5 moL/L HNO3. The dynamic saturation adsorption capacity were 101.9,205.3 and 176.7 mg/g, the detection limits （3cr） were 0. 00041,0. 00083,0. 00036μg/ mL, the relative standard deviation （ RSD, n = 7） were 2.3% ,2.8% ,3.1% , the recoveries were between 93.0% and 104.0%. The results obtained by this method were consistent with those obtained by ICP-MS. |
| Keywords: | D401 chelating resin separation-preconcentration ICP-OES |
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