发射光谱

The influence of power (5-18 W) and discharge pressure (5-15 Torr) on emission intensity of element and stability of intensity ratios in middle-low alloy steel using radio frequency glow discharge optical emission spectrometry were investigated, and the reasons of the influence were analyzed.

考察了射频辉光放电发射光谱法中功率(5~18W)和放电气压(5~15Torr)对元素谱线发射强度及相对强度稳定性的影响，并分析了引起影响的原因。

The results show that these quantum dots have good optical properties, such as narrow spectral line widths and continuous absorption profiles, which provide a powerful foundation for further applications.

实验结果表明，所制备的量子点具有良好的光学性能，其激发光谱宽且连续，发射光谱窄而对称，为本论文后续的拓展与应用研究提供了保证。

With the increase in pH value, fluorescence intensity of SSA increases.

SSA浓度较高时，荧光激发光谱发生变化，但发射光谱不变。

ZnO green phosphors with hexagonal wurtzite were prepared by thermal oxidization of zinc sulfide and zinc chloride.

摘 要：在氯化锌存在下，通过硫化锌的热氧化制备具有六方纤维锌矿结构的氧化锌绿色荧光粉；研究煅烧温度对荧光粉的激发光谱和发射光谱的影响并测定了荧光粉中硫、氯元素含量。

A method for determination of boron in ferroboron by inductively coupled plasma emission spectrometry has been developed.

通过最佳微波消解条件、分析谱线和内标元素的选择，基体及共存元素间光谱干扰的研究，检测限的测定以及样品分析，建立了微波消解-电感耦合等离子体原子发射光谱法测定硼铁中硼的分析方法。

The effects of calcining temperature on structural variations of the phosphors were investigated.

通过测定样品的激发光谱和发射光谱，研究了焙烧温度对荧光粉结构的影响。

Photoluminescence properties of ZnSe/silica gel-glasses were investigated by an advanced spectrum system. Excitated by laser of two different wavelength, the electron transition occurred in two different relaxation approaches. Interband radiation spectra and the surface defect radiation spectra of ZnSe nanoparticles were obtained. The correlation between the wavelength of eradiated light and the incident light verifies that the electronic-hole structures change with the size of the nanoparticle.

利用先进的稳态光谱测试系统研究了ZnSe/SiO〓凝胶玻璃纳米复合材料的光致发光特性，凝胶玻璃基纳米复合材料样品中观察到不同波长激发光激发样品，导致激发态电子经两种不同的弛豫途径的辐射跃迁发光，即ZnSe纳米粒子的带间发射光谱和ZnSe纳米粒子的表面缺陷态发光，辐射光的波长与入射光的波长是连续相关的，证实了凝胶玻璃中ZnSe纳米粒子存在随尺寸变化分立的能级结构。

A method for the determination of silicon and phosphorus in antimony oxide by inductively coupled plasma emission spectrometry ICP-AES was reported. he sample dissolution methods, election of spectral lines, interference of coexistent elements and the working parameters of the instrument were studied.

通过对氧化锑试样分解方法、硅磷分析线选择、共存元素光谱干扰和仪器最佳分析条件等方面的研究，建立了电感耦合等离子体原子发射光谱法测定氧化锑中硅和磷的方法。

It is one of the most important method in chemical research. The course matches Instrument Analysis course. We set up 16 experiments: atomic absorption spectrum, atomic emission spectrum, atomic fluorescent, ultraviolet-visible absorption spectrum, infra-red absorption spectrum, and molecular fluorescent which are for photometric analysis; vottammetric analysis , coulometry analysis ,volt-ampere analysis and polarogarphy for electroanalytical chemistry; Gas chromatography and liquid chromatography for chromatographic analysis.

本实验内容与仪器分析理论课内容相配套，针对光化学分析开设了原子吸收光谱、原子发射光谱、原子荧光、紫外-可见吸收光谱、红外吸收光谱、分子荧光光谱等实验；针对电化学分析开设了电位分析法、库仑分析法、伏安和极谱分析法等实验；针对色谱分析开设了气相色谱和液相色谱分析等实验，共开设了16个实验。

The results show that the ore-controlling strata or source beds related to gold deposits all show high background values of gold; the gold and other associated ore-forming elem...

微量金数据除部分样品运用化学比色法外，主要采用化学浓集-发射光谱测定方法。实验结果表明，化学-光谱法测定微量金相对平均误差为18％；相对平均偏差重复性和再

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。