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ICP-AES法同时测定鞋材中重金属含量 总被引:3,自引:2,他引:1
采用碳化裂解-HNO3-HClO4消解法处理鞋材样品,用ICP-AES法在同一份制备液中同时测定鞋材中Pb,Cd,Cr,Ni,Cu,Zn,Co,Fe等多种重金属元素含量.对分析谱线的选择,基体和共存元素的干扰情况等进行了研究,方法安全、简便、快速、准确.回收率在92.0%~102.0%之间,相对标准偏差在1.0%~4.6%之间. 相似文献
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ICP-AES测定室内装饰装修用水性墙面涂料中可溶性重金属Pb,Cd,Cr 总被引:6,自引:0,他引:6
通过样品中共存元素干扰和酸度效应的研究 ,采用干扰系数法和标准加入法分别校正了光谱重叠干扰和非光谱干扰 ,建立了ICP AES测定水性墙面涂料中可溶性重金属铅、镉和铬的方法。该方法准确 ,检出限低 ,适用于水性墙面涂料的检验工作 相似文献
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采用电感耦合等离子体发射原子发射光谱法(ICP-AES)测定了电解镍中锰、磷、钴、铁、铜、镁、铝、锌、镉、硅和锡等11种元素的含量,对仪器各项参数进行优化,采用基体匹配办法克服基体干扰,通过选择合适的分析谱线和背景校正消除共存元素间干扰。方法应用于实际样品分析,11种元素的回收率为92.0%—107.0%,相对标准偏差0.3%—5.1%,测定结果与标准方法的测定值相符。 相似文献
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介绍了用 X射线荧光光谱测定催化裂化平衡催化剂上污染重金属 Fe、Ni、V、Cu、Sb和 Ca含量的分析方法。考查了影响 Fe、Ni等元素测定的各种因素 ,提出以新鲜催化剂为配制标样的载体 ,较好地克服了元素间互相干扰的影响 ,减少基体效应 ,取得了 Fe、Ni等元素含量的准确结果。实验结果表明 ,XRF光谱法测定催化剂上污染重金属元素的含量是一种快速、准确、简便的分析方法 相似文献
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本文提出了一种全新的以酸直接提取煤中的矿物元素、ICP-AES测定其含量的方法.考察了最佳酸配比、酸用量、最佳提取时间、仪器最佳操作参数以及元素间的干扰等诸多因素.与其灰分含量相比,煤中矿物质的提取率在95%以上,各元素加标回收率为96%~104%,九次测定相对标准偏差小于4%.方法准确、快速、适合于不同煤样中矿物元素的分析测定. 相似文献
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ICP-AES法测定金属硅中的Al、B、Ba、Ca、Cr、Cu、 Fe、Mg、Mn、Ni、Sr、Ti、V和Zn杂质元素 总被引:13,自引:0,他引:13
本文提供了一种测定金属硅中B,Fe,Al,Ca,Mn等14个杂质元素的ICP-AES方法,在样品处理过程中,加入适量体积的甘露醇能够抑制B的挥发。用本方法测定了一个国家地球化学标准样(GSR-4),结果令人满意。 相似文献
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The lowest absorption band of the tetraphenyl compounds resembles that of the lowest absorption band of benzene with the following difference. In benzene the electronic origin is strictly forbidden, and all intensity is associated with a symmetric progression built on one mode of asymmetric vibration. In the tetraphenyl compounds the intensity associated with the asymmetric vibration is relatively unaffected; however, there is increasing intensity associated with the electronic origin and a symmetric progression built on it along the series . For the cations it is the electronic origin and the progression built on it that are the primary source of intensity. This effect is attributed to an inductive perturbation. A similar effect is observed in the fluorescence spectrum. In phosphorescence, the relative enhancement of the electronic origin and the progression built on it is far less marked. The phosphorescence emission of φ4Pb and φ4Sb+ are red shifted from the others by ~0.5 eV, an effect attributed to formation of a triplet excimer. Increasing spin-orbit coupling in the triplet due to a heavy atom effect can be seen in the decreasing phosphorescence lifetime (range 4 sec to 4 msec) and decreasing ratio of (fluorescence to phosphorescence quantum yields) in the order In all cases nonexponential decay of phosphorescence is observed. 相似文献
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纯硒中杂质元素的ICP-AES测定 总被引:1,自引:0,他引:1
电感耦合等离子体-原子发射光谱同时测定纯硒中的碲、铅、铋、锑、铜、铁、镍、铝、锡、砷和硼12种元素的含量,优化出各元素的分析波长和分析条件;用基体匹配补偿基体效应,方法简单,快速可靠,样品回收率为94%-107%. 相似文献
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Ö. Söğüt E. Baydaş E. Büyükkasap A. Küçükönder Y. Şahin 《The European Physical Journal D - Atomic, Molecular, Optical and Plasma Physics》2003,22(1):13-16
K shell X-ray production cross-sections in the Ti, V, Cr, Mn, Fe, Co, Ni, and Cu in the molecules were studied at 59.5 keV
excitation energy by using a Si(Li) detector ( FWHM = 155 eV at 5.96 keV). The present results are compared with other theoretical values. 相似文献
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Semiempirical equations of state are obtained for copper, silver, gold, lead, nickel, and aluminum, which permit a study of the mechanical properties of the crystalline lattices of these metals when subjected to a complex system of stresses over the entire elastic deformation region, and lead to an evaluation of the mechanical destruction parameters of these lattices. As an example, the case of omnidirectional tension is examined.Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 1, pp. 66–70, January, 1973. 相似文献
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ICP—AES法直接测定锡锭中的As,A1,Bi,Cd,Cu,Fe,Pb,Se,Sb,Zn 总被引:4,自引:0,他引:4
以电荷耦合器件为检测器的全谱直读等离子体光谱仪直接测定锡锭中As、A1、Bi、Cd、Cu、Fed、Pb、Se、Sb、Zn十种杂质元素的含量。该方法简便、快速且具有比化学法更低的检出限,加标回收试验结果不明,回收率为92%-105%,RSD均小于1.5%。 相似文献
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Hugo O. Mosca 《Surface science》2007,601(15):3224-3232
The surface energy for different surface orientations of the solid solutions as a function of concentration formed by Ti, V, Cr, Zr, Nb, Mo, Hf, Ta, and W is computed and analyzed using the BFS method for alloys. Similarities and differences among the different binary alloys are examined in terms of strain and chemical effects. 相似文献