光谱测定的

The synthesis of 4,5,7-trichloroquinoline makes use of ethyl orthoformate, cyanoacetic ester and 3,5-dichloroaniline as the raw materials. The synthesis is completed by four steps: condensation, cyclization, hydrolyzation and chlorination. Several conditions concerned in the process are studied, the whole yield of 4,5,7-trichloroquinoline is about 53%, and the purity of it is about 96%. All the products are testified by IR, NMR and HPLC.

介绍了以3，5-二氯苯胺、原甲酸三乙酯和氰乙酸乙酯为原料，经过缩合、成环、水解和氯代4步反应制备4，5，7-三氯喹啉的方法，对相关的试验条件进行了考察，通过红外光谱、核磁共振谱和液相色谱对4，5，7-三氯喹啉的结构和纯度进行表征和测定，试验结果为4，5，7-三氯喹啉的纯度大于96%，总收率达到53%。

The influence of the structure and property of Jinzhou coker heavy gatch on formation of needle coke was investigated by using elemental analysis, liquid chromatogram, FT-IR spectroscopy and molecular weight determination.

本文利用元素分析、液相色谱、傅立叶变换红外光谱、分子量测定等分析手段，研究了锦州焦化重蜡油的组成结构和性质对生产针状焦的影响，并通过与典型针状焦生产原料——锦州催化裂化油浆的比较，指出了锦州焦化重蜡油用作针状焦原料的不足。

In this paper, the glyoxal structure both in reagent and in bulking solution were detected by infrared spectro and mass spectra, the result shows that there is no aldehyde group but only hydrate existing in both solutions. Besides, the mechanism of the ac-tion between glyoxal and waterlogged wood is discussed and some problems like how to prevent the bulk-ing solution from acidification are also mentioned.

此外，还运用红外光谱和质谱法测定了试剂乙二醛和加固液的结构，详细讨论了乙二酯在试剂和加固液中官能团的存在形式和聚合状态的细微变化，指出在二种溶液中并不存在醛基，乙二醛仅以水合物的形式存在并讨论了乙二醛与饱水古木的作用机理，提出用醇溶液能有效控制乙二醛使用中易返酸等问题。

The charge transfer salts with second order nonlinear optical properties have been synthesized based on hexamethylenamine and the heteropoly acids,H 3PMo 12 O 40 ·nH 2O,H 4SiMo 12 O 40 ·nH 2O and H 4GeMo 12 O 40 ·nH 2O and characterized by elemental analysis,IR spectra and UV spectra.

本文研究了一系列不同富硫有机配体的配合物以及富硫有机分子修饰的硫化物；合成了两个系列的7个富硫配合物和2个电荷转移盐，运用元素分析、红外、紫外-可见光谱对配合物进行了表征，并且通过单晶四圆X-衍射测定了C_5H_6S_5CuI(1)、(C_5H_6S_5)2PdI_2(6)、C_(10H_(10)S_8[(C_4H_4S_4)AuCl_2](8)、C_(10H_(10)S_8Hg_2Cl_6(9)四个化合物的晶体结构。

Ten variously substituted benzoyl peroxides were synthesized for Raman spectrometric identification both in solution (CCl 2FCClF 2) and solid state. Different to infrared spectra, Raman spectra have been proved to be a useful characterization of the highly symmetric peroxy bond in diacyl peroxides. The ν OO value ranged from 850 to 899 cm -1 varies regularly with the substituent on the phenyl ring.

合成了全氟和其它对位、间位取代的共10种过氧化苯甲酰，测定了它们的固体和溶液(溶剂为F113， CCl2FCClF2)的激光拉曼光谱，首次发现这类化合物中高度对称的过氧键有较强的特征谱带，即νOO在850至899 cm-1之间，并随取代基不同而呈现规律变化。

We also studied the spectra of the dye and determined the fluorescence quantum yields in different solvents. Also discussed its photostability and sensitivity to different pH.

研究了染料在不同溶剂中的吸收光谱和荧光光谱，测定了染料在不同溶剂中的荧光量子产率，并对染料的光稳定性及对pH值的敏感性进行了探讨。

The monthly variations in Sr/Ca ratio of the Porites coral from Eastern Hainan Island have been studied using the ICP-AES technique.On the basis of the correlation analysis between Sr/Ca values and SST values measured from the Meteorological Station,a thermometer has been set up as a formula of SST=170-16,n=133,r=0.80,p=0.01,which is similar to the formula of SST=169-16.7 for Xisha waters.

文章采用全谱直读等离子体原子发射光谱的方法测定了1986~1996年海南岛东部海域滨珊瑚的Sr/Ca比值，建立了该海域月分辨率的Sr/Ca海水表面温度计方程：SST=170-16，n=133，r=0.80，p=0.01，此与韦刚健等在西沙海域建立的温度计方程：SST=169-16.7一致，这表明南海中、北部海域也出现有相似的微量元素温度计。

In this paper, I studied the present methods for analyzing the optical parameters of thin film purposively to solve the problem of semiconductor thin film. Among so many methods, I pick up the reflection method to combine with the genetic algorithm, which is entitled the modern optimizing algorithm. And a new method of simultaneous determination the multi-parameters of semiconductor thin film has been presented.

本文针对半导体薄膜光学参数的测定问题，对目前分析薄膜光学参数的方法进行了较为详细、系统的研究，从众多方法中选取反射光谱法与现代优化算法——遗传算法相结合，提出一种可以同时确定半导体薄膜多个光学参数的新方法。

objectiveto determine the contents of the heavy metals in 5 traditional chinese medicines in 4 raw material bases of guizhou province and to provide more basis for the control of chinese herbal medicines.methodsatomic absorption spectrographic method was adopted.

目的测定贵州省4个药材基地的5种中药材重金属的含量，为中药材的质量控制提供更多的依据。方法原子吸收光谱法和原子荧光光谱法。

Moreover, the matrix effect was investigated. The results showed that samples could be completely decomposed by melting in lithium tetraborate and lithium carbonate mixed flux at about 1000℃. The introduction of lots of lithium and matrix magnesium in solution affected the determination, which could be corrected by matrix matching. Calcium, iron and aluminium with high content had no spectral interference with other elements with low content.

结果表明，样品用四硼酸锂和碳酸锂混合熔剂在1000℃左右的温度下熔融，可以完全分解试样；引进试液中大量锂和基体铁时测定有影响，用基体匹配的方法克服，含量较高的钙、铁和铝对含量低的其他元素没有光谱干扰。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。