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水溶性聚苯胺/SmBacuMO_(5+δ)(M=cu,Zn)材料的制备与氨敏性能研究

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电子元件与材料 2012年第4期31卷 18-21页

作者：王立丽刘瑞泉新疆大学化学化工学院新疆乌鲁木齐830046

采用化学氧化法制备了水溶性聚苯胺(PANI),溶胶–凝胶法制备了SmBacuMO5+δ(M=cu,Zn;SBCM)粉体,用微粒填充法制备了PANI/SBCM复合材料。利用傅里叶变换红外光谱法(FT-IR)、XRD、TEM对产物进行了分析表征,研究了PANI/SBCM元件的氨敏性能... 详细信息

采用化学氧化法制备了水溶性聚苯胺(PANI),溶胶–凝胶法制备了SmBacuMO5+δ(M=cu,Zn;SBCM)粉体,用微粒填充法制备了PANI/SBCM复合材料。利用傅里叶变换红外光谱法(FT-IR)、XRD、TEM对产物进行了分析表征,研究了PANI/SBCM元件的氨敏性能。结果表明,PANI/SBCM元件在室温下对NH3具有良好的灵敏性,同条件下PANI/SmBacucuO5+δ(SBCC)元件的氨敏性能优于PANI/SmBacuZnO5+δ(SBCZ)元件。室温条件下,PANI/SBCC元件对体积分数为100×10–6的NH3的最大灵敏度为7.29,具有高的灵敏度和选择性,且性能稳定。

关键词：气体传感器水溶性聚苯胺/SmBacuMO5+δ(M = cu, Zn) 室温氨敏

Effects of methamidophos and glyphosate on copper sorption-desorption behavior in soils

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Science China(Life Sciences) 2005年第Z1期48卷 67-75页

作者： YU Ying, ZHOU Qixing & HE Zhenli Key Laboratory of Terrestrial Ecological Process, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China College of Natural Resources and Environmental Sciences, Zhejiang University, Hangzhou 310029, China Key Laboratory of Terrestrial Ecological Process Institute of Applied Ecology Chinese Academy of Sciences Shenyang 110016 China College of Natural Resources and Environmental Sciences Zhejiang University Hangzhou 310029 China

A batch-equilibration technique was employed to study the impact of two organophosphorus pesticides methamidophos (MDP) and glyphosate (GPS) on copper (cu2+) sorptiondesorption for phaeozem and burozem collected from Northeastern China. The addition of the two pesticides decreased cu2+ sorption, increased cu2+ desorption and prolonged the equilibrium time of cu2+ sorption-desorption. But GPS appeared to exert a stronger influence on cu2+ sorption-desorption due to its stronger complexion with cu2+. When MDP was added, cu2+ sorption-desorption was linearly correlated with MDP treatment concentrations. But in the presence of GPS, cu2+ sorption first underwent a rapid decrease period, and then slowly tended towards a steady period. The reverse pattern could be found for cu2+ desorption in the presence of *** pesticides and with the existence of MDP, cu2+ sorption-desorption kinetics was well conformed to two-constant equation and Elovich equation. But that was not the case for cu2+ desorption kinetics in the presence of GPS although its sorption could be also described by these two equations.

关键词： cu, sorption, desorption, methamidophos, glyphosate, phaeozem, burozem.

微波消解–ICP–OES法测定难分解不锈钢和中低合金钢中7种元素

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化学分析计量 2015年第2期24卷 36-39页

作者：钟月香李天宝叶林李达光苏淑坛李昊菁易碧华江门出入境检验检疫局广东江门529000

以微波消解–ICP–OES法测定难分解不锈钢和中低合金钢中Cr，Ni，Mn，V，Ti，cu，Mo的含量。样品经6 mL稀王水和0.5 mL HF微波消解处理后，用带有耐HF进样系统的ICP–OES仪测定试样中多种元素。在优化仪器分析参数和消除基体及共存元素... 详细信息

以微波消解–ICP–OES法测定难分解不锈钢和中低合金钢中Cr，Ni，Mn，V，Ti，cu，Mo的含量。样品经6 mL稀王水和0.5 mL HF微波消解处理后，用带有耐HF进样系统的ICP–OES仪测定试样中多种元素。在优化仪器分析参数和消除基体及共存元素的干扰后，各待测元素的检出限为0.0009%～0.0099%，校准工作曲线的线性相关系数均大于0.999，相对标准偏差为0.27%～1.50%（n=6）。该方法适用于难分解不锈钢和中低合金钢中7种元素含量的日常检测。

关键词：微波消解 ICP-OES法难分解不锈钢中低合金钢 Cr, Ni, Mn, V, Ti, cu, Mo