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.

一種硫化烯烴的制備方法中文黄色字幕网站，包括：(1)使一氯化硫和C 3 ～C 12 烯烴在低碳醇催化劑的存在下進行加合反應，生成加合物天天综合激情；(2)將(1)步的加合物與C 1 ～C 15 鹵代烷www.eemii.com、堿金屬硫化物、硫磺粉日韩裸体自拍视频网站免费、脂肪醇水溶液混合日韩在线成人免费观看，進行硫化脫氯反應后，精制處理亚洲欧美人成网站综合在线，得到硫化烯烴產品91精品国产摄像头。

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.

結果表明，前者與DNA反應形成四個可辨認的加合物斑點国产一级婬片A片免费无码百度，后者與DNA反應形成三個可辨認的加合物斑點99r精品视频只有精品高清8，能與DNA加合的物質為潛在的&三致&物質，同時婷婷精品图区，二者的Ames試驗結果顯陽性這應當引起人們對滅幼脲環(huán)境安全性的重視欧美特级特黄AAAAAA片不卡。

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活化后能與腺嘌呤形成AAⅠ-DNA加合物，LC/MS/MS技術能夠決速力便準確地檢測AAⅠ-DNA加合物高清一区二区三区免费杂交。

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.

對C〓富勒烯與苯胺人妻丝袜av先锋影音先锋、二苯胺、三乙胺等形成的加合物在紫外激光解吸電離作用下可以發(fā)生不同尋常的裂解和聚合現(xiàn)象進行了研究8x日韩在线，認為其形成機理為：上述加合物在紫外激光解吸電離作用下欧美性爱亚洲有码，發(fā)生裂解產生C〓NH、C〓N及C〓等離子亚洲一区二区三区偷拍，然后它們之間發(fā)生聚合日韩毛片中文字幕免费看，形成如：C〓NH在线一级手机视频、C〓N〓H〓、C〓N〓H〓日本3级黄色视频、C〓N〓H〓www.ahrwzdm.com、C〓N〓H〓等含氮原子的聚富勒烯離子。

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.

本文重點介紹了一些典型的DNA損傷(如DNA加合物99视频久久久久、斷裂天堂网在线WWW中文、DNA 序列改變等)的生物標記物及其檢測方法；認為這些生物標記物在環(huán)境污染物的早期診斷和評價方面具有廣闊的應用前景日韩一级黄色录像影片夫妻性生活影片。

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與氨基酸殘基的羧基作用形成1：1的加合物一级黄手机免费在线视频，然后與鋅卟啉的中央鋅原子配位形成1：2的加合物，客體分子與主體分子上的氨基酸殘基之間的排斥作用以及主客體之間的色散力作用是主體分子能識別客體分子的另外兩種作用黄片免费在线播放。

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異構形成人干人人，且有相對高的異構化能（氣相：244.77 kJ/mol；水溶劑中：234.83 kJ/mol）欧美AAAA在线视频免费观看，這與實驗上得到加合物G是主要癌變物的結果一致久热国产vs视频在线观看。

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.

本研究根據(jù)化學致癌過程的遺傳毒性和非遺傳毒性機理，以DNA加合物作為機體接觸外來化學物而導致DNA損傷的生物學標志物国产com，通過觀察酚酸類化合物對大鼠體內BaP活化代謝以及〓和TCA誘導小鼠肝微粒體脂質過氧化的影響18禁网站在线免费，及酚酸類化合物對BaP和TCA誘導的沙門氏菌TA100和TA104形成DNA加合物的影響，探討蔬菜免费黄一区、水果中酚酸類化合物對外來化學物誘導的DNA損傷的保護機制搜A级毛片。

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

氧位加合物與氮位加合物之間，紅外光譜差別十分明顯1313午夜精品福利片，容易區(qū)分欧美日韩精品专区。

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

氧位加合物與氮位加合物之間，紅外光譜差別十分明顯亚洲一级aⅴ无码毛片中文国产，容易區(qū)分欧美色t。