卤

The five halogenated acetic acids, monochloroacetic acid, dichloroacetic acid, trichloro acetic acid, monobromoacetic acid, dibromoacetic acid, were separated on an IonPac AS19 column specially designed for oxyhalides, and the separating conditions were optimized.

利用IonPac AS19大容量阴离子交换色谱柱对水中的一氯乙酸、二氯乙酸、三氯乙酸、一溴乙酸、二溴乙酸5种卤代乙酸进行了分离，优化了分离条件。

In order to investigate the quantitative structure-retention relationship in gas chromatography, the molecular structure of monosubstituted alkane RX (X=halogen, OH, SH, NH2) is divided into two parts, R and X, to obtain molecular structure parameters, and the retention times in GC for 37 monosubstituted alkanes RX were determined.

将单取代烷烃RX(X=卤素，OH，SH，NH2等)分子结构分为两个区域来提取分子结构参数，从三方面影响因素(烷基R、取代基X、R与X的相互作用)来定量关联RX的气相色谱保留时间。

ATRP initiation systems consist of organic chloride initiators (RCl, RBr or aryl sulfonyl chloride, etc.), transition-metal catalysts in lower oxidation state Cu(I, Fe, Ru, Ni, etc. and organic electronic-donating ligands (2,2'-bipyridine―bipy or bpy, PPh3, multidentate ligand compound 1,1,4,7,7-pentamethyldiethylenetriamine, etc.).

普通ATRP引发体系包括引发剂主要为氯或溴化物，芳基磺酰氯；低价过渡金属卤化物如Cu， Fe，Ru，Ni等；有机配体如2，2'-联吡啶，PPh3，脂肪族多元胺等。

Linear dimerization of isoprene to form myrcene ;2. Synthesis of Unsaturated Cyclothioethers byCycloaddition Reactions of Myrcene;3. The traditional synthesis is by the way of Diels-Alder reaction of myrcene with acrolein over Lewis acid catalysts in organic solvent.

二烷基咪唑或烷基吡啶卤化物与ZnCl2 构成一类新型的具有Lewis酸性的离子液体，以其为催化剂和反应介质，通过月桂烯与丙烯醛的Diels Alder反应高区域选择性地合成了对位柑菁醛。

Some products included methoxy group, naphthyl and heterocyclic aromatic moieties, and some were borne with two 1-propynyl groups. It is more important that compounds bearing halogens were also synthesized via this protocol.

运用此法不仅合成出一些含有醚键、萘环、杂环以及含有两个1-丙炔基的化合物，重要的是芳环上含有卤原子的化合物也能顺利地合成出来。

Except for benzene, hexane, nonane and heptane, the DVP pass ratio values are 77.8%-100%, the DP pass ratio valutes are 66.7%-100%, when sampled 29 other VOCs, which meet the demand for method TO-17 basically.

除了正己烷、正庚烷、苯和正壬炕，以该型采样管采集分析空气中其他29种非卤代烃类VOCs时，其DP合格率为77.8%-100%，DVP合格率为66.7%-100%，基本满足方法TO-17的要求。

The enzyme catalyzed-reaction was initiated by the addition of the buffer solution containing nonfluorescent substrates ADHP and H_2O_2 to the vessel.

细胞在微池内经过冻融、超声振荡和低渗溶液作用溶解，细胞内PO均匀分散到溶液内，催化溶液中ADHP与H_2O_2反应生成试卤灵。

Cross-Coupling Reaction of Organoboron with Arylhalide by Pd° Catalyzed;;Studies on Syntheses,Properties,Structures and Bioactivities of Hydrazones and Its Complexes

中文题名具有生物活性的酰腙及其配合物的研究；钯催化下硼试剂与卤代芳烃的偶联反应

Meantime, we further studied this reaction under microwave irradiation conditions and first introduced the concept of the solvent-free and no-catalyst in this reaction, expanded the olefination of organozinc halides reagents with aldehydes, enlarged the application scopes of this reaction.

同时在微波辐射条件下进一步研究了该类反应，并在该类反应中初步引进无溶剂、非催化的概念，扩展和完善了有机卤化锌试剂与醛的烯基化反应，扩大了其应用范围。

Although itsapplication in organic synthesis has extented rapidly, a survey of literature showsthat CuCN·2LiCl is almost the only copper salt for the Michael addition reaction offunctionalized organozinc halides, and the amount of CuCN·2LiCl used isstoichiometric. Because of the toxity of CN〓, we try to carry out the reaction inother way instead of CuCN.

但在带官能团的有机卤化锌的Michael加成反应中，到目前为止基本上都是使用毒性较大的铜盐CuCN-2LiCl，为了寻找更好的方法，并使其成为催化反应，我们以带官能团的有机碘化锌的Michael加成反应为目标反应，对FG-R-ZnI在有机合成中的应用进行了考察，得到了较好的结果。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。