加合物

A process for preparing the olefine sulfide includes addition reaction between sulfur monochloride and C3-C12 olefine under existance of low-carbon alcohol as catalyst to obtain addition compound, mixing it with C1-C15 haloalkane, sulfide of alkali metal, sulfur powder, and aqueous solution of emtrol, sulfurizing, dechlorinating, and refining.

一种硫化烯烃的制备方法，包括：(1)使一氯化硫和C 3 ～C 12 烯烃在低碳醇催化剂的存在下进行加合反应，生成加合物；(2)将(1)步的加合物与C 1 ～C 15 卤代烷、碱金属硫化物、硫磺粉、脂肪醇水溶液混合，进行硫化脱氯反应后，精制处理，得到硫化烯烃产品。

Four adduct compounds are found for the former, and three are found for the latter. This indicates the DNA adduct formation capabilities both of 2-chloro benzamide and the photoproduct sample. Meanwhile the result of Ames experiments of them is positive. Thus we should pay more attention to important meaning of these results since the compound, which can produce adducts with DNA, may possibly be tumorigen or even carcinogen and mutagen.

结果表明，前者与DNA反应形成四个可辨认的加合物斑点，后者与DNA反应形成三个可辨认的加合物斑点，能与DNA加合的物质为潜在的&三致&物质，同时，二者的Ames试验结果显阳性这应当引起人们对灭幼脲环境安全性的重视。

AAⅠcan bind covalently to the exocyclic amino group of purine nucleotides to form AAⅠ-DNA adduct. LC/MS/MS is a practical tool to detect AAⅠ-DNA adduct.

AAⅠ活化后能与腺嘌呤形成AAⅠ-DNA加合物，LC/MS/MS技术能够决速力便准确地检测AAⅠ-DNA加合物。

Several aminated Fullerene derivatives were synthesized by the reaction of C〓 with phenylamine, diphenylamine and triethylamine etc., the phenomena of fragmentation and aggregation of the aminated Fullerene derivatives in UV laser desorption ionization mass spectrometer was observed, a few nitrogenous poly-Fullerene ions, such as C〓NH, C〓N〓H〓, C〓N〓H〓, C〓N〓H〓, C〓N〓H〓 etc.

对C〓富勒烯与苯胺、二苯胺、三乙胺等形成的加合物在紫外激光解吸电离作用下可以发生不同寻常的裂解和聚合现象进行了研究，认为其形成机理为：上述加合物在紫外激光解吸电离作用下，发生裂解产生C〓NH、C〓N及C〓等离子，然后它们之间发生聚合，形成如：C〓NH、C〓N〓H〓、C〓N〓H〓、C〓N〓H〓、C〓N〓H〓等含氮原子的聚富勒烯离子。

In this review, the typical biomarkers of the DNA damages, such as DNA adducts, strand breaks and altered sequence in DNA, and their measuring methods are discussed emphatically. It is thought that the application of these biomarkers offers broad prospects for early diagnosis and assessment of environmental toxicants.

本文重点介绍了一些典型的DNA损伤(如DNA加合物、断裂、DNA 序列改变等)的生物标记物及其检测方法；认为这些生物标记物在环境污染物的早期诊断和评价方面具有广阔的应用前景。

At first,the amino group of amino acid esters interacts with the carboxyl group of the amino acid residue of this porphyrinatozinc to form 1:1 adducts.

氨基酸酯的氨基首先与氨基酸残基的羧基作用形成1：1的加合物，然后与锌卟啉的中央锌原子配位形成1：2的加合物，客体分子与主体分子上的氨基酸残基之间的排斥作用以及主客体之间的色散力作用是主体分子能识别客体分子的另外两种作用。

Adduct G is isomerized by F. The isomerization energies are relatively high (in the gas phase: 244.77 kJ/mol; in solvent of water: 234.83 kJ/mol), which is consistent with the experiment that adduct F is the primary alkylation product.

加合物G由F异构形成，且有相对高的异构化能（气相：244.77 kJ/mol；水溶剂中：234.83 kJ/mol），这与实验上得到加合物G是主要癌变物的结果一致。

The effects of phenolic acid compounds in vegetables and fruits on metabolicactivation of BaP in rats,as well as 〓 and TCA induced lipid peroxidation inmouse and Salmonella typhimurium TA104 cells were investigated using DNAadducts as a biomarker to assess DNA damage induced by xenobiotic carcinogens.BaP was used to study the genotoxic carcinogenesis,while 〓 and TCA were usedto study the non-genotoxic carcinogenesis.The possible protection mechanisms ofphenolic acid compounds on DNA damage were studied.

本研究根据化学致癌过程的遗传毒性和非遗传毒性机理，以DNA加合物作为机体接触外来化学物而导致DNA损伤的生物学标志物，通过观察酚酸类化合物对大鼠体内BaP活化代谢以及〓和TCA诱导小鼠肝微粒体脂质过氧化的影响，及酚酸类化合物对BaP和TCA诱导的沙门氏菌TA100和TA104形成DNA加合物的影响，探讨蔬菜、水果中酚酸类化合物对外来化学物诱导的DNA损伤的保护机制。

So the 2-pyridone adduct tautomers are easy to separate and identify by GC/FTIR.

氧位加合物与氮位加合物之间，红外光谱差别十分明显，容易区分。

So the 2-pyridone adduct tautomers are easy to separate and identify by GCFTIR.

氧位加合物与氮位加合物之间，红外光谱差别十分明显，容易区分。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。