光谱测定的

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。

The copper atom is in a planar coordination site of [N_2O_2] and it devites from the mean plane by only 0.80 pm. Byπ-πstacking interactions, a alabastrine structure was obtained.(2)Schiff-base complex [Cu(H_2O)]·H_2O, where H3GS is the 3-carboxyl -salicylidene glycine, was synthesized and characterized by elemental analysis, IR spectra and single-crystal analysis. The crystal belongs to monoclinic system, space group P2(1)/c, a=848.46(3)pm, b=681.54(3)pm, c=1967.16(8)pm,β=95.8210(10)°, Z=4, R_1=0.0279, wR_2=0.0724. The copper atom is in a square-pyramidal field with the base

结果表明该晶系属单斜晶系，空间群P2(1)/c，晶胞参数：a=848.46(3)pm，b=681.54(3)pm，c=1967.16(8)pm，α=90°，β=95.8210(10)°，γ=90°，Z=4，R_1=0.0279，wR_2=0.0724，Cu原子位于轻微变形的四方锥场底心，底面被氮原子、酚氧原子、甘氨酸羧基的一个氧原子和一个水分子氧原子占据，而甘氨酸羧基的另一个氧原子占据相邻分子的锥顶，因而形成一维链状结构；合成了单核双聚配合物Na_2[Cu_2_2]·2H_2O ，铜三核配合物Cu_3_2·5H_2O和铜锌异三核配合物ZnCu_2_2·5H_2O，并用元素分析，IR光谱，电子光谱和磁化率测定对配合物的组

Hrough copolymerization of styrene with few quantity of methacrylic acid, maleic anhydrate or 4-vinyl pyridine respectively and of butyl methacrylate with maleic anhydrate, the functional groups carboxyl, simple anhydride and pyridyl have been introduced respectively to the chain of PS or PBma.

通过苯乙烯与少量的甲基丙烯酸、马来酸酐或4—乙烯基吡啶的共聚及甲基丙烯酸正丁酯与马来酸酐的共聚，可在聚苯乙烯及聚甲基丙烯酸丁酯链上分别引入功能基因羧基、酸酐基和吡啶基对共聚物进行了红外光谱、酸碱滴定、元素分析、玻璃化转变温度、粘度及紫外光谱的测定。

Quantum chemical calculations were performed based on these conformations to explain the experimental data. 4. The molecular recognition of the chiral Salen Fe complexes towards imidazole derivatives and the measure of the equilibrium constants of host-guest system of the Salen Fe and EMIm a.

用紫外-可见光谱滴定法考察了不同主体Salen-Fe对咪唑及其衍生物的分子识别行为，测定了识别过程的平衡常数和热力学参数，讨论了影响主客体配位能力的有关因素；系统地考察了主客体缔合反应的圆二色光谱性质。

The derivative ratio of UV spectrum is used to analyze a mixture of glyoxal and glyoxalic acid.

用紫外光谱的比值导数法对乙二醛与乙醛酸的二元混合物进行分析，该方法能将乙二醛和乙醛酸重叠光谱分开并消除互相干扰，从而方便的完成两组分混合体系中各组分的测定。

An alkaline sample digestion procedure using fusion with lithium metaborate (LiBO2) after dry ashing was developed. Silicon, aluminium and other, a total of 10 elements in different kinds of biological samples, were measured by ICP-AES.

探讨不同种类生物样品中Si和Al等10种元素的测定方法，采用干灰化结合偏硼酸锂碱熔灰分的前处理方法，用电感耦合等离子体原子发射光谱法同时测定试样中Si和Al以及Ca，Mg，Fe，Na，P，Mn，Sr，Ti。

Based on the remarkable sensitivity enhancement effect of Co~(2+) on Cd,a new chemical vapor generation system of Cd-KBH_(4)-NaIO_(3)-HCl was developed for the determination of trace Cd in foodstuff samples by atomic fluorescence spectrometry.

利用Co2+对镉的测定具有明显的增敏作用，采用Cd-KBH4-NaIO3-HC l新化学蒸气发生体系原子荧光光谱法测定粮食中痕量镉。

A little of the diaylsed solution was dilluted with distilled water (1:4) and applied to metallic sample plate following negative staining with sodium phosphotungstate solution. The sample was freeze-dried and examined by transmission electron microscopy 1.4 IFvs size and size distribution measured 1.5 The shape morphology of IFvs 1.6 Measureing the encapsulation efficiency and loading capacity of Liposomal Gd-DTPA A sample volume of 5ml was sent to analyze (Zhongshan University Analytical Center, Guangzhou).

1.6 Gd-DTPA脂质体包封率及载药量的测定取5ml前述离心后所得上清液送交中山大学分析测试中心，采用高频电感耦合等离子发射光谱法测定离心液中Gd-DTPA含量，用加入总的Gd-DTPA量减去离心液中的Gd-DTPA含量即得包封量。

The coordination geometry of the Eu atom is best described as a strongly distorted square-antipyrism.. The two Eu atoms are bridged by two N-oxide oxygen atoms forming a dimeric unit with crystallographic inversions centre. The Eu……Eu distance is 4.2137(9)〓. The two europium atoms and two bridging oxygen atoms is coplanar. The angles of Eu(1)-O(7)-Eu(1A) and O(7)-Eu(1)-O(7A) are 117.82(14)° and 62.18(14)°, respectively. 15 is the first dinuclear triboluminescent lanthanide complex reported.

同时还测定了其摩擦发光光谱与其光致发光光谱，并讨论了晶体结构和摩擦发光活性之间的关系。X-射线结构分析表明，15为有对称中心结构的配合物，每个Eu与三个HTTA的六个O原子和两个PyO的两个O原子形成八配位的四方反锥几何构型，2个N-Oxide O原子桥联两个Eu，形成了一个双核配合物，Eu。。。。

The structure of synthesized epoxidized cottonseed oil was characterized by means of' 1H NMR and FT-IR. Epoxy value,iodine value,acid value,and color of the product were determined by Chinese national standards.

通过核磁共振氢谱、红外光谱及黏度测定方法对产物的结构进行了表征，并采用国标法对产物的环氧值、碘值、酸值和色泽进行了测定。

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。