异色的

And it was found that the effect of strengthening laser energy is similar to that of prolonging the excitation time,and the photochromism process of MR strongly depends on steric hindrance around azobenzene molecule.

偶氮材料的光致变色效应是由偶氮生色团通过光物理化学过程发生顺反异构引起的，所以近年来有大量研究集中在偶氮生色团的顺反异构过程的研究上[10～13]。

The analysis of oxidation products of cumene and m-diisopropylbenzene was performed on the high performance liquid chromato graphy.

首先建立了高效液相色谱分析异丙苯与间二异丙苯氧化产物的方法。

The establishment and relaxation processes of the transient gratings, which are formed by two recording 514nm beams with different polarization directions, SS, PP, SP and ±45℃, are investigated. Using the weak absorption of the chromophores at 632. 8nm and the positive dichroism of the chromophores molecules, a kind of bi-photonic transient gratings, owing to the periodic distribution of Trans and Cis isomers, is established first time in azo-dye doped polymeric bulk sample.

实验考察了两束514nm的写入光在不同偏振情况下（SS，PP，SP和±45），在样品中形成的瞬态栅的建立和弛豫情况；利用偶氮生色团在632.8nm波段的微弱吸收和生色团分子的正二向色性，首次在块状偶氮聚合物材料中形成一种基于生色团反式和顺式异构体密度分布的双色光瞬态栅；利用瞬态栅的快速建立和弛豫，考察了其在衍射型全光开关方面的潜在应用。

Respectively use chelex 100 resinate,boiling extraction,proteinase K digest/isopropanol precipitation,proteinase K digest/phenol/chloroformextra ction,alkaline lysis,guanidine thiocyanate lysis,guanidine hydrochloride lysis,spin column method to extract Mycobacterium tuberculosis DNA for multiplepolymerase chain eraction.

选择3份含结核分枝杆菌分别为4.325×103、6.857×104、5.356×105 Copies/ml的痰液，分别用Chelex 100树脂法、煮沸法、蛋白酶K消化异丙醇沉淀法、蛋白酶K消化酚/氯仿抽提法、碱裂解法、异硫氰酸胍裂解法、盐酸胍裂解法、离心柱法抽提结核分枝杆菌DNA作多重聚合酶链反应，显色法芯片检测结核分枝杆菌RFP和INH耐药基因。

Object: A specific and sensitive liquid chromatography tandem mass spectrometry method was developed for the multiresidue determination of sulfisomidine, sulfapyridine, sulfamerazine, sulfamethoxazole, sulfisoxazole, sulfadiazine, sulfamethizole, sulfachlorpyridazine, sulfamethoxypyridazine, sulfadimethoxine, sulfamonomethoxine, sulfathiazole, sulfadoxine, sulfaquinoxaline, sulfanilamide, sulfaguanidine, sulfamoxole, sulfameter, sulfadimidine, sulfacetamide, sulfaphenazole, sulfanitran, sulfabenzamide and a potentiator, trimethoprim, in meat.

目的：建立猪肉中磺胺及其增效剂多残留检测的液相色谱-串联质谱法，包括磺胺二甲异嘧啶、磺胺吡啶、磺胺甲基嘧啶、磺胺甲基异噁唑、磺胺二甲异噁唑、磺胺嘧啶、磺胺甲噻二唑、磺胺氯哒嗪、磺胺甲氧哒嗪、磺胺间二甲氧嘧啶、磺胺-6-甲氧嘧啶、磺胺噻唑、磺胺邻二甲氧嘧啶、磺胺喹噁啉、磺胺、磺胺脒、磺胺噁唑、磺胺甲氧嘧啶、磺胺二甲嘧啶、磺胺醋酰、磺胺苯吡唑、磺胺硝苯、磺胺苯酰和甲氧苄氨嘧啶。

A series of study methods which can not research in this field begin to exert important affection. On the basis of the previous research, the following major innovative work was carried out in this dissertation.(1) Several methods including fluorescence spectra, CD and FT-IR specta methods were used to study the interaction of isoquinoline alkaloid、isoflavones and Rhein with serum albumin, and the results from every method was in good agreement;(2) The binding constants、the numbers of binding site、the binding region and the interaction force involving in the interaction of drugs and serum albumin were confirmed by Scatchard equation and Vant Hoff equation.

基于研究生物大分子与小分子相互作用具有极其重要的意义，本博士论文在前人工作的基础上，主要进行了以下几方面的创新性研究：(1)利用荧光光谱法、圆二色谱法、红外光谱法以及分子模拟等多种方法相结合研究了异喹啉类生物碱，异黄酮类化合物以及大黄酸与人血清白蛋白的相互作用，获得了准确一致的信息；(2)根据Scatchard方程和Vant Hoff方程详细研究计算了异喹啉类生物碱以及大黄酸与蛋白质结合机理包括结合常数、结合位点数、结合区域、结合力。

RESULTS:Six flavonoids 6-C-glycopyranosyl-8-C-glycopyranosyl apigenin(1),6-C-arabinosyl-8-C-glycopyranosyl apigenin(2),6-C-glycopyranosyl-8-C-arabinosyl apigenin(3),6-C-glycopyranosyl-8-C-xyloeyl apigenin(4),6-C-glycopyranosyl luteolin(5),luteolin(6),one chromone isobiflorin(7),and one lignanoid-isolariciresinol(8),were isolated from the n-BuOH fraction of this plant,respectively.

结果：从毛鸡骨草地上部分的正丁醇部位分离并鉴定了8个化合物，黄酮类化合物：芹菜素-6-C-葡萄糖-8-C-葡萄糖苷（1），芹菜素-6-C-阿拉伯糖-8-C-葡萄糖苷（2），芹菜素-6-C-葡萄糖-8-C-阿拉伯糖苷（3），芹菜素-6-C-葡萄糖-8-C-木糖苷（4），木犀草素-6-C-葡萄糖苷（5），木犀草素（6）；色原酮类化合物：异双花母草素（7）；木脂素类化合物：-异落叶松树脂醇（8）。

Methods: In alkaline condition, reaction between amino acids and phenylisothiocyanate formed a derivant of phenylisothiocyanate-amino acid. For RP-HPLC, the Diamonsil C18 column 250 mm×4.6 mm,5 μm） and binary gradient elution were used. The mobile phase A was 0.1 mol/L sodium acetate solution-acetonitrile (93∶7） and the mobile phase B was acetonitrile-water（80∶20）. The detecting wavelength was 254 nm.

在碱性条件下，氨基酸与异硫氰酸苯酯反应，生成异硫氰酸苯–氨基酸的衍生物，采用 Diamonsil C18色谱柱（250 mm×4.6 mm，5 μm），用二元梯度洗脱方式，流动相A为0.1 mol/L乙酸钠–乙腈（93∶7），流动相B为乙腈–水（80∶20），检测波长254 nm。

This paper introduces tests of constituents and isomeric compound contents of PXE、PEPE and M/DBT produced by several chemical plant by way of gas chromatography and gas chromatography-mass spectrograph combination , and also gibes some comments on present status and quality control of the insulation oil.

本文介绍了采用气相色谱分析及气质联用分析方法对各厂家生产的PXE、PEPE、M/DBT的组份及其同分异构体的含量进行测定的情况，对绝缘油品质的现状及质量的控制提出了一些见解。关键词：绝缘油；气相色谱；组分分析；同分异构体

Low-boiling phenols in low-temperature coal tar are important chemical raw materials. For the identification and determination of the individual phenol boiling below 210℃ in the low temperature coal tar, the methods of gas chromatography, liquid-liquid chromatography followed by ultra-violet analysis and fractional distillation followed by infrared analysis were evaluated and compared.

随着煤炼油工业的发展，煤焦油中的酚类，特别是低級酚，作为化工原料的利用很重要，我們应用(1)气液色譜法，(2)液液色譜与紫外光譜法結合及(3)精餾与紅外光譜法結合三种不同方法对210°以前的低級酚进行了各种异构体的成分分析，比較分析結果：三种方法对同一样品进行分析时，最大絕对誤差在2％以内，其中以气液色譜法最为快速，液液色譜法次之，精餾-紅外光譜法費时間較多；但后二种方法所得数据較完全。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。