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matrix ion
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  基质离子
     For the former the conclusions obtained by using the model of an equivalent ferromagnetic are still valid; i.e. nonmagnetic impurity ions and the impurity ions whose spins equal to that of the matrix ion on the same sublattice have no effect on the line width of uniform resonance.
     对一致共振,用等效铁磁模型得到的结论仍然成立:非磁性杂质离子和自旋等于同一次点阵上基质离子自旋的杂质离子,对一致共振线宽没有贡献。
短句来源
  “matrix ion”译为未确定词的双语例句
     Catalytic activity of strongly acidic PTFE matrix ion exchange fibers for synthesis of n-butyl acetate
     强酸性PTFE离子交换纤维催化合成乙酸正丁酯
短句来源
     The band edges of CuSCNwas pinned at the interface through using the electrolyte containing matrix ion SCN-and it did not shift with measuring frequency.
     通过在电解质溶液中加入半导体薄膜的本底离子SCN-,可以使CuSCN带边“钉扎”在表面,平带电位不再随测试频率变化;
短句来源
     Corresponding matrix, ion concentration and the shape of metallic granular in grain films with Cu as example, the influence for magnetic granular films Faraday rotation angle is discussed. The effective medium approximate calculation is consistent with experimental result.
     并应用导出的关系,以Cu金属颗粒为例,讨论了颗粒膜中金属颗粒含量及对应的基质、离子浓度、颗粒形状对法拉第转角的影响,结果表明,利用有效介质近似理论计算的结果与实验结果一致。
短句来源
     The influence of matrix,ion detection mode and concetration of sample was investigated in detail.
     在正、负离子检测模式下,考察了基质、离子化试剂、样品浓度对分析结果的影响。
短句来源
  相似匹配句对
     Profiles of Ion-matrix Sheath around Planar Dielectric
     平面介质靶周围离子体鞘的特征
短句来源
     SOME MAJORIZAT ION MAJORIZATION InEQUALITIES IN QUATERNION MATRIX
     四元数矩阵中的几个优化不等式
短句来源
     Subnormal Matrix
     次正规矩阵
短句来源
     CYCLIC MATRIX
     循环矩阵
短句来源
     ION BEEN OXIDATION
     离子束氧化
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  matrix ion
Different factors including carrier element amount, pH, sample volume and matrix ion effects for the precipitation were examined.
      
The construction and electroanalytical response characteristics of poly(vinyl chloride) matrix ion-selective sensors (ISSs) for drotaverine hydrochloride are described.
      
By analysing standard samples at conditions of different oxygen coverage, the relation between the sensitivity of boron and the oxygen content of the sample surface, as indexed by the SiO+/Si3+ matrix ion species ratio, was established.
      
The matrix ion species ratio method (MISR) was used to investigate the influence of the presence of oxygen on the determination of boron in silicon.
      
Determination of boron in silicon by SIMS with the matrix ion species ratio method
      
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In this work, it has been found for an ellipsoid of a ferrimagnetic with two equivalent sublattices of unlike ions that the frequency spectrum of spin waves consists of two branches and in each of them the dependence of frequency on the wave vector is similar to the spin wave spectrum of a ferromagnetic ellipsoid. Based on this spectrum and the scattering mechanism of spin waves due to the fluctuation of exchange interactions, calculations have been made for the line width of the uniform resonance and that of...

In this work, it has been found for an ellipsoid of a ferrimagnetic with two equivalent sublattices of unlike ions that the frequency spectrum of spin waves consists of two branches and in each of them the dependence of frequency on the wave vector is similar to the spin wave spectrum of a ferromagnetic ellipsoid. Based on this spectrum and the scattering mechanism of spin waves due to the fluctuation of exchange interactions, calculations have been made for the line width of the uniform resonance and that of the exchange resonance. For the former the conclusions obtained by using the model of an equivalent ferromagnetic are still valid; i.e. nonmagnetic impurity ions and the impurity ions whose spins equal to that of the matrix ion on the same sublattice have no effect on the line width of uniform resonance. However, the impurity ions of both these kinds should give rise to the line width of exchange resonance. There exists a large difference in the line width of uniform resonance estimated for various ferrites by making use of our simplified model of ferrimagnetism. Quite probably the fluctuation of the exchange interactions is the main cause of the line width of uniform resonance in a number of ferrites. The exchange resonance line width caused by this mechanism are estimated for ferrites generally of the order of several tens in the oersted.

本文得到了具有二个等价次点阵的椭球亚铁磁体的二支自旋波频谱,它们的频率对波矢的依赖关系与椭球铁磁体的相类似。基于此频谱和交换作用涨落引起的自旋波散射机制,计算了一致共振和交换共振的线宽。对一致共振,用等效铁磁模型得到的结论仍然成立:非磁性杂质离子和自旋等于同一次点阵上基质离子自旋的杂质离子,对一致共振线宽没有贡献。但这二类杂质离子对交换共振线宽有贡献。用我们的简化亚铁磁模型对各种铁氧体算得的一致共振线宽差别很大。对许多尖晶石型铁氧体,交换作用涨落可能是引起一致共振线宽的主要机制。对于铁氧体,由此机制引起的交换共振线宽其数量级为几十奥。

An acidic dye, alizarin S, PVC-matrix ion selective electrode was prepared by using its salts of large cation as a sensing element. The effects of various quaternary ammonium salts, quaternary phosphonium salts, basic dye, ferroin ion and various mediator solvents have been discussed in detail. Trioctylmethyl ammonium chloride and dibutyl phthalate are preferred. The optimum membrane content of sensing element is 0.12%. The response to alizarin S ion is linear with a Nernstian slope 57mV/decade...

An acidic dye, alizarin S, PVC-matrix ion selective electrode was prepared by using its salts of large cation as a sensing element. The effects of various quaternary ammonium salts, quaternary phosphonium salts, basic dye, ferroin ion and various mediator solvents have been discussed in detail. Trioctylmethyl ammonium chloride and dibutyl phthalate are preferred. The optimum membrane content of sensing element is 0.12%. The response to alizarin S ion is linear with a Nernstian slope 57mV/decade over the concentration range of 2×10~(-4)~5×10~(-7)M in the pH range of 2~4.2. The limit of detection is 2×10~(-7)M.The selectivity coefficients of various common anions were determined. ClO_4~-,CNS~- and I~- anions show remarkable interference. As alizarin S is a metallochromic indicator, the variations of potential in the presence of some metals were also tested.The electrode potential drift is less than 2 mV for the duration of eight hours period. The stability and reproducibility are satisfactory. The life time of the membrane is more than four months. This electrode can be used as an indicator electrode in the potentiometric titration with EDTA and ARS. It is necessary to titrate Sc at proper pH in order to avoid interference and to get good precision. There is no interference from alkali and alkaline earth metals and the amounts of La as much as 30 times the amounts of Sc and Y 10 times of Sc do not interfere at designated pH. It is a good practice to determine Sc potentiometrically with alizarin S as a titrant. The variation coefficient is 0.4%. The present method is suitable for the determination of Sm in Co-Sm alloys with good results.

本文报道了茜素S电极的研制和应用。比较了季铵盐、季鏻盐、碱性染料和邻二氮菲金属配合盐作为活性物质、各种介体溶剂以及活性物质在膜相中的含量对电极性能的影响。以三辛基甲基氯化铵制成的PVC膜型电极对茜素S在2×10~(-4)~5×10~(-7)M浓度范围内呈Nernstian响应,检测下限为2×10~(-7)M。测定了一些阴离子的选择系数,ClO_4~-,CNS~-,I~-以及能与茜素S配合的金属离子有明显干扰。报道了以茜素S电极为指示电极,用EDTA和茜素S为滴定剂滴定钪和稀土的情况。以茜素8电位滴定钪及钴-钐合金中的钐,都获得良好的结果。

The method of determination Pb,Cd in spirulina has been studied by AAS.The sample was pretreated into ashes and the complex salt were dissolved by nitric acid.The method of elimination background interference with matrix ions has been tested. The relative standard deviation of Pb is 10.7% and Cd is 9.9%, standard recoveries are between 92% to 110%.

采用干法灰化硝酸浸出盐分 ,火焰原子吸收法测定螺旋藻中 Pb和 Cd,试验了样品前处理方法和背景干扰消除方法。方法的相对标准偏差 Pb为 10 .7% ;Cd为 9.9%。回收率在 92 %— 110 %之间

 
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