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

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。     

纯硒中杂质元素的ICP-AES测定

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%.     

Equations of state for copper,silver, gold,aluminum, nickel,and lead

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.     

Solution absorption and luminescence studies of tetraphenylboron, -carbon, -silicon, -germanium, -tin, -lead, -phosphorus, -arsenic,and -antimony

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

$\text{φ}{}_4\text{Pb}\text{< φ}{}_4\text{Sn}\text{< φ}{}_4\text{Ge}\text{< φ}{}_4\text{Si}\text{< φ}{}_4\text{C}\text{? φ}{}_4\text{B}{}^{\mathrm{?}}\text{< φ}{}_4\text{Sb}{}^{\mathrm{+}}\text{< φ}{}_4\text{As}{}^{\mathrm{+}}\text{< φ}{}_4\text{P}{}^{\mathrm{+}}$

. 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 $\text{φ}{}_{\mathrm{f}}\text{φ}{}_{\mathrm{p}}$ (fluorescence to phosphorescence quantum yields) in the order

$\text{φ}{}_4\text{C}\text{> φ}{}_4\text{B}\text{> φ}{}_4\text{Si}\text{> φ}{}_4\text{P}{}^{\mathrm{+}}\text{> φ}{}_4\text{Ge}\text{> φ}{}_4\text{As}{}^{\mathrm{+}}\text{> φ}{}_4\text{Sn}$

In all cases nonexponential decay of phosphorescence is observed.     

ICP—AES法直接测定锡锭中的As,A1,Bi,Cd,Cu,Fe,Pb,Se,Sb,Zn

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％。     

Surface energies of the solid solutions between Ti, V, Cr, Zr, Nb, Mo, Hf, Ta, and W

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.     

Density-functional calculations of alpha, beta, gamma, delta, delta', and epsilon plutonium

Total energies for the six known polymorphs of plutonium metal have been calculated within spin and orbital polarized density-functional theory as a function of lattice constant. Theoretical equilibrium volumes and bulk moduli correspond well with experimental data and the calculated total energies are consistent with the known phase diagram of Pu. It is shown that a preference for the formation of magnetic moments, increasing through the alpha-->beta-->gamma phases, explains their position in the ambient pressure phase diagram and their anomalous variation of atomic density. A simple model is presented that establishes a relationship between atomic density, crystal symmetry, and magnetic moments which is universally valid for all Pu phases.     

电感耦合等离子体原子发射光谱法测定高纯铼酸铵中Ca、Cd、Mn、Fe、Mg、Al、Cu、Co、Mo、Pb、Sn和Ni

本文介绍了电感耦合等离子体发射光谱法（ICP－AES）测定高纯铼酸铵中12个杂质元素的方法。采用挥发健康基体，探讨了高铼酸铵基体的干扰及其消除办法。ICP－AES测定结果的准确度和精密度均能满足分析要求。     

原子吸收光谱法测定桃叶中K,Mg,Sr,Fe,Cu,Mn和Zn等元素

本文采用桃叶作标准样品，讨论了湿法消化法与炭化－灰化法两种样品处理方法对测定结果的影响及方法操作效果比较，并进一步讨论了温度对炭化－灰化法的影响情况。由此建立起该法的适宜条件。在此条件下，用原子吸收光谱法测定桃叶及冷杉树枯枝、叶中多种元素。其精密度和准确度均能满足测定要求。     

Measurement of X-ray production cross-sections of Ti,V, Cr,Mn, Fe,Co, Ni and Cu molecules

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.     

原子吸收光谱法检测肝癌、肝硬化、肝脓肿患者血清中Cu、Zn、Cr、Mn、Mg微量元素含量

应用原子吸收光谱法检测了肝癌、肝硬化、肝脓肿患者血清微量元素的含量,发现肝癌和肝硬化患者血清内Ｃｕ含量明显高于正常对照组和肝脓肿组（Ｐ〈０．００１,Ｃｒ、Ｍｎ含量明显低于正常对照组（ｐ〈０．００１）和肝脓肿组,肝脓肿患者血清内微量元素含量与正常对照组无显著性差异（ｐ〈０．０５）。结果表明：肝癌、肝硬化患者Ｃｕ、Ｍｎ、Ｃｒ存在代谢异常。     

稚鸡蛋中Ca、Cu、Fe、Zn、Mn、Se、Cr和Pb含量的测定

采用原子吸收光谱法,测定了稚鸡蛋中的钙、铜、铁、锌、锰、硒、铬和铅的含量,并对其结果进行了分析。各元素在实验范围内,线性关系良好,回收率在97.9%—102.2%之间。稚鸡蛋中Ca、Cu、Fe、Zn、Mn、Se含量分别为973.2、5.86、419.40、99.78、7.66、1.25μg·g~(-1),显著高于罗曼鸡蛋。测定结果显示稚鸡蛋中含有丰富的矿物元素,具有较高的营养和保健价值。     

Precision mass measurements of neutron-rich Y, Nb, Mo, Tc, Ru, Rh, and Pd isotopes

Direct mass measurements with typical uncertainties of 1-10keV have been performed for the first time for ten neutron-rich isotopes ^{102, 103}Y , ¹⁰⁸Nb , ¹¹¹Mo , ^{113, 114}Tc , ¹¹⁶Ru , ¹¹⁹Rh , and ^{121, 122}Pd . The obtained mass data compared with the 2003 atomic-mass evaluation shows systematic overestimation of binding energies far from stability. The relationship between two-neutron separation energies, nuclear structure and shape changes has been investigated by comparing the experimental data with a theoretical calculation based on the Hartree-Fock-Bogoliubov approximation using modern energy density functionals.     

Optical emission behaviors of C,Al, Ti,Fe, Cu,Mo, Ag,Ta, and W wire explosions in gaseous media

Electrical explosion of wires (EEW) is a promising method for nanopowders preparation and insensitive explosives ignition. Plasma radiation plays a key role in the ignition process while little attention has been paid on this phenomenon before. This letter introduces optical emission behaviors of electrical explosions for nine materials in air, Helium, and Argon with the SWE-2 platform. Experimental results indicated that the light intensity for non-refractory metals decayed rapidly after the discharge ended. In contrast, for refractory metals, the emission continued to increase and lasted for a long period after the discharge ceased. As for spectra, the emission consisted of line and continuous spectra. With the atomic number increased, the density of lines grew rapidly, leading to a “continuous” appearance.     

Cointegration of output, capital, labor, and energy

Cointegration analysis is applied to the linear combinations of the time series of (the logarithms of) output, capital, labor, and energy for Germany, Japan, and the USA since 1960. The computed cointegration vectors represent the output elasticities of the aggregate energy-dependent Cobb-Douglas function. The output elasticities give the economic weights of the production factors capital, labor, and energy. We find that they are for labor much smaller and for energy much larger than the cost shares of these factors. In standard economic theory output elasticities equal cost shares. Our heterodox findings support results obtained with LINEX production functions.     

Stopping powers of Al,Ti, Fe,Cu, Mo,Ag, Sn,Ta and Au for 7.2 MeV protons

Stopping powers of several metalic elements have been measured using a silicon detector. The present results are decisively lower than the data of Anderson et al.. The deviations are statistically significant. But Nara data agree well with the table of Barkas and Berger.     

无火焰原子吸收光度法连续测定化探样品中铜、铬、钴、镍、铅、镉

本文主要介绍了化探样品相态分析中无火焰原子吸收光度法测定化探样品中的铜、铬、钴、镍、铅、镉的分析方法。近年来，随着地质找矿工作的发展，地球化探人员对相态分析技术越来越感兴趣，在相态分析中，不同相态同一种元素的含量相差很大，给溶液的提取，制备及测定工作带来了很多不便，加之，大量的常量元素的存在尤其是钙、镁、锰、铁等元素极易产生干扰，在水溶态，离子态的分析液中铜、铬、钴、镍、铅、镉的含量又很低，给测试带来了很大难度，在相态的提取过程中，如果做平行、样品分析的话一个样品至少要制备八份溶液，工作量很大，因此，找到一个简单，快捷而又稳定可靠的测试方法是十分必要的，在测定中采用了磷酸为基体改进剂，它不仅可以消除基体的干扰，并可使各种元素测定的精密度得到很大改善。     

ICP-AES法直接测定锡锭中的As、Al、Bi、Cd、Cu、Fe、Pb、Se、Sb、Zn

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、Al、Bi、Cd、Cu、Fe、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,加标回收试验结果表明,回收率为92%-105%,RSD均小于1.5%.     

High resolutionMNN auger spectra of Ag,Cd, In,Sb, Te,and I

The strongest lines (M ₅ N _4,5 N _4,5 andM ₄ N _4,5 N _4,5) in theMNN Auger spectra of Ag, Cd, In, Sb, Te, and I have been investigated with high resolution by means of an electrostatic cylindrical spectrometer. The measured spectra have been found to have a fine structure corresponding to the splitting of the final states of the Auger transitionsM ₅ N _4,5 N _4,5 andM ₄ N _4,5 N _4,5. This has not been observed for these elements in spectra measured by the retarding field method. The line profiles are discussed.     

ICP-MS测定饮用水源中的钼、钴、铍、锑、镍、钡、钒、钛和铊等9种特定项目

采用电感耦合等离子体-质谱法（ICP-M S）测定水中的钼、钴、铍、锑、镍、钡、钒、钛、铊等9种元素。结果表明,各元素检出限0.005—0.07μg.L^-1,满足饮用水源分析要求;空白加标回收率94.2%—106.0%,相对标准偏差RSD〈4.0%,n=9）。样品加标回收率93.8%—110.0%,该方法高效、简便、线性范围宽,适用于饮用水源水质分析。