生物制剂胸腺肽和转移因子中Zn,Cu,Fe,Mn,Co,Ni的含量分析

胸腺肽和转移因子是临床上常用的两种生物制剂 ,该制剂具有增强机体免疫功能的作用 ,用以治疗免疫缺陷或免疫功能低下、病毒或真菌引起的传染病等。为了探讨微量元素含量与相关疾病之间的关系 ,配合临床上合理使用该种制剂 ,提供生产该类制剂所需此方面的参考数据 ,作者采用原子吸收方法直接检测胸腺肽和转移因子两种生物制剂中Zn ,Cu ,Fe ,Mn ,Co ,Ni六种微量元素的含量。并通过统计学的方法 ,对检测出的各元素含量进行了相关比较。比较结果 :Zn ,Co含量 ,胸腺肽低于转移因子 ;Cu ,Fe,Mn ,Ni含量 ,胸腺肽高于转移因子。两种制剂间 ,Zn ,Cu ,Mn ,Co差异非常显著 (P <0 0 1) ,Fe ,Ni差异显著 (P <0 0 5 )。此结论为临床合理使用生物制剂增强免疫功能 ,在增加或减少制剂中某种微量元素含量方面 ,提供了有用的参考数据。     

РАДИАЦИОННЫЙ ЗАХВАТ НЕЙТРОНА ЯДРАМИ Sc,Fe, Cu,Mo, Cd и La

, . 20–1000 keV Sc, Fe, Cu, Mo, Cd La.

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The radiative capture of a neutron on Sc, Fe, Cu, Mo, Cd and La nuclei

The energies and intensities of the transitions of a compound nucleus, produced by the capture of a neutron, were measured by means of a single-crystal scintillation spectrometer. The region of energies 20–1000 keV was measured on Sc, Fe, Cu, Mo, Cd and L a nuclei.

     

6.8MeV质子对Cr,Co,Ni,Cu,Zn的弹性散射

本实验测量了6.8MeV质子对Cr,Co,Ni,Cu和Zn的弹性散射角分布。在其微分截面σ_e(θ)与库仑散射微分截面σ_R(θ)之比对θ的作图中显示:这几种元素A相近,也有大体相似的角分布曲线;其极大极小位置可以用kR′sinθ_m/2=常数表之,显示出核的粗糙结构的特征。但在大角度处,这几种质量数A相近的核,其(σ_e(θ))/(σ_R(θ))值却有显著的差异,而且偶z核的(σ_e(     

类氧离子CoⅩⅩ,NiⅩⅪ,CuⅩⅩⅡ和ZnⅩⅩⅢ精细结构能级…

本文用相对论多组态Ｄｉｒａｃ－Ｆｏｃｋ广义平均能级（ＭＣＤＦ－ＥＡＬ）模型计算了可能成为激光工作物质的类氧离子ＣｏⅩⅩ，ＮｉⅩⅪ，ＣｕⅩⅩⅡ和ＺｎⅩⅩⅢ的４８个精细结构能级和９３个３ｓ－３ｐ跃迁波长。３ｐ组态能级和３ｓ－３ｐ跃迁波长是本文首次预言的。     

Pb的类Fe,Co,Ni,Cu,Zn离子（Pb^52＋—Pb^56＋）能级和跃迁的…

采用相对论多组态平均能级模型，计算了Ｐｂ的类Ｆｅ，Ｃｏ，Ｎｉ，Ｃｕ，Ｚｎ离子（Ｐｂ＾５２＋－Ｐｂ＾５６＋）的精细结构能级，跃迁波长，自发辐射跃迁儿率，受激辐射跃迁几率和振子强度。     

Hume-Rothery electron concentration rule across a whole solid solution range in a series of gamma-brasses in Cu–Zn,Cu–Cd,Cu–Al,Cu–Ga,Ni–Zn and Co–Zn alloy systems

The aim of the present work is to examine if the Hume-Rothery stabilisation mechanism holds across whole solid solution ranges in a series of gamma-brasses with especial attention to the role of vacancies introduced into the large unit cell. The concentration dependence of the number of atoms in the unit cell, N, for gamma-brasses in the Cu–Zn, Cu–Cd, Cu–Al, Cu–Ga, Ni–Zn and Co–Zn alloy systems was determined by measuring the density and lattice constants at room temperature. The number of itinerant electrons in the unit cell, e/uc, is evaluated by taking a product of N and the number of itinerant electrons per atom, e/a, for the transition metal element deduced earlier from the full-potential linearised augmented plane wave (FLAPW)-Fourier analysis. The results are discussed within the rigid-band model using as a host the density of states (DOS) derived earlier from the FLAPW band calculations for the stoichiometric gamma-brasses Cu₅Zn₈, Cu₉Al₄ and TM₂Zn₁₁ (TM = Co and Ni). A solid solution range of gamma-brasses in Cu–Zn, Cu–Cd, Cu–Al, Cu–Ga and Ni–Zn alloy systems is found to fall inside the existing pseudogap at the Fermi level. This is taken as confirmation of the validity of the Hume-Rothery stability mechanism for a whole solute concentration range of these gamma-brasses. An exception to this behaviour was found in the Co–Zn gamma-brasses, where orbital hybridisation effects are claimed to play a crucial role in stabilisation.     

速效救心丸中Ca,Mg,Fe,Cu,Zn的测定及Ca/Mg,Cu/Zn比值分析

本文采用火焰原子吸收分光光度法测定了速效救心丸中Ca ,Mg ,Fe,Cu ,Zn五种金属元素的含量 ,并对速效救心丸中Ca/Mg ,Cu/Zn含量比值进行了分析研究。结果表明 ,速效救心丸中含有丰富的Ca,Mg ,Fe ,Cu ,Zn元素 ,元素含量Ca>Fe >Mg >Zn >Cu ,它为探讨速效救心丸中Ca ,Mg ,Fe ,Cu ,Zn与治疗冠心病之间的关系提供了有用的数据。     

Fe,Co,Ni掺杂GaSb的电子结构和光学性质

运用第一性原理LDA+U方法 (考虑了交换关联项的Hubbard U修正的局域密度近似方法)研究了过渡族金属X (X=Fe, Co, Ni)掺杂GaSb的电子结构和光学性质.研究结果表明:X掺杂均能提升GaSb半导体材料对红外光区光子的吸收幅度,并能有效提高GaSb材料的光催化性能;过渡金属X在GaSb材料中主要以X替代Ga缺陷(X@Ga)的形式存在, X的电荷布居和键布居表明, X的掺入容易引起体系的晶格畸变,由此产生的电偶极矩有利于光生电子-空穴对的分离,从而提高材料的光催化性能; X掺杂引入的杂质能级位于0点费米能级附近,因而掺杂体系复介电函数虚部在光子能量为0时就会有响应,同时掺杂体系的静介电常数也得到了很大的提升; X的掺杂对GaSb体系的光学性能都有很大的改善,但Ni掺入对改善GaSb材料的光催化特性最有利;最佳Ni原子的掺杂摩尔浓度为10.94%,均匀掺杂可以避免光生电子-空穴复合中心的形成,此时光学吸收范围和吸收峰值都达到最大,对材料的光催化性能最有利.     

Measurement of K X-ray intensity ratios in Ca, Ti, V, Cr, Mn, Fe, Co, Ni, Cu and Zn employing carbon and nitrogen projectiles – VTT method

A method is suggested to effect the self absorption correction in a different way to estimate the K X-ray intensity ratios particularly when heavy ions are used as projectiles. Employing this method, the K_β/K_α intensity ratios are measured in some 3d shell elements by using Carbon and Nitrogen ions as exciting agents. The K_β/K_α intensity ratios thus obtained in the present work are compared with the intensity ratios due to some previous authors and also with Scofield theoretical values. Received 14 August 2000 and Received in final form 3 January 2001     

Anisotropic low-field giant magnetoresistance in [NiFeCo/Cu] multilayers

[NiFeCo(3 nm)/Cu(2 nm)] multilayers having in-plane uniaxial magnetic anisotropy were prepared by using a carousel type sputtering apparatus. The MR (magnetoresistance) ratio was about 8% and the MR curve along the easy axis showed a sharp split hysteresis with a very small transient field, ΔH ∼ 3 Oe, though the switching is irreversible. The experimental results are discussed by using magnetic phase diagrams calculated by Dieny et al. (1990) and Folkerts (1991).     

ICP-AES同时测定铝合金中Fe,Si,Cu,Mg,Mn,Ni,Zn,Ti,Cr,Sr等杂质元素

本文通过基体干扰和操作条件的试验研究，分别用基体匹配法和干扰系数法校正基体干扰和待测元素间的干扰，建立了以氢氧化钠溶样，ICP－AES同时测定铝合金中铁、锰、铜、锌、镁、钛、硅、镍、铬、锶等杂质元素的方法。方法快速、简便、可靠，回收率93％－102％，适用于进出口铝合金的快速检验。     

合成反铁磁Ni81Fe19/Co90Fe10/Ru/Co90Fe10/Ni81Fe19的研究

采用直流磁控溅射方法制备了一系列的合成反铁磁及以其为自由层的自旋阀.研究发现,在Ni81,Fe19与Ru层之间插入适当厚度的Co90Fe10层后,可有效地提高合成反铁磁两磁性层间的反铁磁耦合强度,得到具有饱和场日.更高、饱和磁化强度M.更低、热稳定性更好的合成反铁磁.另外,以这种合成反铁磁作自旋阀的自由层时,可有效提高自旋阀的稳定性.     

Magnetic Thermocouples Made of Co–Fe and Ni–Fe Permalloys

Technical Physics - Magnetized and unmagnetized Co–Fe and Ni–Fe alloys fabricated on a two-high casting installation in the form of thin flexible amorphous films are promising materials...     

ICP—AES法测定儿童血液中的Zn,Ca,Fe,Cu和Mg

本文研究了全血中锌，钙，铁，铜，镁微量元素的电感耦合等离子体发射光谱法的测定，方法简便，具有良好的精密度和准确度，相对标准偏差分别为Ｚｎ１．６％，Ｃａ１．４％，Ｆｅ１．１％，Ｃｕ２．１％，Ｍｇ１．１％回收率在９５％－１０５％之间。     

火焰原子吸收光谱法直接测定红细胞中Cu,Zn,Fe的含量

本文采用沈阳分析仪器厂产４０２型原子吸收分光光度计，在标准溶液中加入ＮａＣｌ溶液作为基体改进剂，用火焰原子吸收光谱法直接测定红细胞中Ｃｕ、Ｚｎ、Ｆｅ的含量，不仅消除基体干扰，而且提高了测定Ｃｕ和Ｚｎ的灵敏度，Ｃｕ、Ｚｎ、Ｆｅ的平均回收率为１０１％、１０３％及９９％；相对标准偏差分别为４．６％、２．２％及９．６％。     

Zr-M(M=Fe,Co,Ni,Cu)型金属玻璃的电子-电子相互作用和超导涨落效应

本文系统地研究了顺磁性金属玻璃 Zr_xCo_(100-x)(x=78,72,66.8)和 Zr_(66.7)M_(33.3)(M=Fe,Ni,Cu)的低温电导率与温度的关系σ(T)发现,在很宽的温区内,σ(T)与弱局域化理论相符.随着温度的降低,σ(T)∝T~(1/2),此规律来源于电子-电子相互作用效应,在超导临界温度Tc 附近,σ(T)∝ε~(-1/2);这是 Aslamusou-Larkin 项(AL 项)对超导涨落效应的贡献.