流动注射-化学发光法测定药物的应用进展

评述了近年来流动注射化学发光法在药物分析中的进展。在各种化学发光体系及发光试剂方面作了总结。     

天青Ⅰ催化光度法测定钌

基于在稀磷酸介质中,钌(Ⅲ)对高碘酸钾与天青Ⅰ的氧化褪色反应的催化作用,建立了微量钌的催化光度测定法。对此催化反应条件的优化试验及反应的动力学参数的测定,确定了反应介质的磷酸浓度0.48 mol.L-1,测定波长620 nm,反应的温度条件65~100℃,为操作方便,方法采用在沸水浴中加热7 min,测得表观活化能(Ea)为17.70 kJ.mol-1,反应速率常数(K)为3.7×10-4s-1,钌(Ⅲ)浓度在0~0.48 mg.L-1范围内,与lg(A0/A)值呈线性关系(相关系数为0.999 3),其检出限为0.040 mg.L-1,对0.24 mg.L-1钌(Ⅲ)进行11次测定,算得RSD为2.0%。此方法应用于三个含不同量钌的模拟试样分析,所得结果与已知值相符。     

Nonlinear Squeezed States and Multiplication Rule of Nonlinear Squeezing Operators Gained via Nonlinear Coherent State Representation and IWOP Technique

Using the nonlinear coherent state representation we derive nonlinear squeezed states and the multiplication rule of nonlinear squeezing operators. We find that the symplectic matrices multiplication rule in nonlinear coherent state projection operator representation maps into the multiplication rule of successive nonlinear squeezing operators.The technique of integral within an ordered product of operators plays an essential role in deriving the multiplication rule.     

On Mutual Transform Between Number-Difference State and Phase State Corresponding to Operational Phase Operator

In the mutual transform between the number-difference state and the phase state corresponding to the operational phase operator we find that there exists an end-point ambiguousness. This problem can be avoided by Lighthill‘s method.     

Teleportation of a Kind of Three-Mode Entangled States of Continuous Variables

A quantum teleportation scheme to teleport a kind of tripartite entangled states of continuous variables by using a quantum channel composed of three bipartite entangled states is proposed. The joint Bell measurement is feasible because the bipartite entangled states are complete and the squeezed state has a natural representation in the entangled state basis. The calculation is greatly simplified by using the Schmidt decomposition of the entangled states.     

Deriving Internal Energy by Virtue of Generalized Feynman-Hellmann Theorem for Mixed States

We show how to directly use the generalized Feynman-Hellmann theorem, which is suitable for mixed state ensemble average, to derive the internal energy of Hamiltonian systems. A concrete example, which is a two coupled harminic oscillators, is used for elucidating our approach.     

Excel在线性回归法测量不确定度评定中的应用

介绍了如何使用Excel电子表格进行线性回归法求得测量结果的不确定度评定,可方便地获得任一测量结果的扩展不确定度。     

高压下三种脂肪酸甲酯液相导热系数的实验研究

生物柴油是新型环境友好型替代能源,其主要成分为碳数分布在C6～C24的长链脂肪酸酯.利用瞬态单丝法导热系数测量系统在272～352K温度范围内、0.1～15 MPa压力范围内对三种生物柴油组成成分壬酸甲酯、庚酸甲酯和己酸甲酯的液相导热系数进行了实验测量,并将导热系数拟合成关于温度和压力的方程,壬酸甲酯、庚酸甲酯和己酸甲...     

一种Ga-P复合发光材料的制备和性质研究

以Na3P和GaCl3为原料,在常压条件下的有机溶剂中合成出一种荧光材料.XRD分析表明其结构与GaP纳米晶体完全不同.能谱分析证明该产物包含Ga、P、Cl元素,该组成式为GaPCl4.将该产物与桑色素复合,并与GaP/桑色素复合材料相比,发现前者在丙酮、乙醇和水溶液中的发光强度以及发光稳定性均明显优于后者.该实验产物与桑色素复合制成的复合材料在丙酮、酒精和水溶液中出现很强的光致发光,而且可以稳定存在三个月以上.     

Ag纳米颗粒对有机小分子太阳能电池性能的改善

在有机小分子太阳能电池CuPc/C60和TiOPc/C60的阳极ITO表面分别制备了一层Ag纳米颗粒,并采用MoO3作为阳极缓冲层,器件的性能均得到有效改善.Ag纳米颗粒的引入所形成的表面等离子激元共振可显著提高有机光活性层的吸收效率和光生激子的分解效率;而MoO3有效抑制了光生激子在有机/金属界面处发生的猝灭,提高了...