锡

The grafting of polycaprolcatone on starch by ring-opening polymerization of e -caprolactone was initiated from the starch hydroxyl functions in the presence of a catalyst such as stannous octoate Sn(0ct2, Dibutyltin dilaurate or titanium tetrabutoxide. The grafting ration could reach 16%. IR, X-ray diffraction and DSC were used to investigate the grafting-polymer.

在辛酸亚锡Sn(Oct_2、二月桂酸二丁基锡和钛酸丁酯等催化剂作用下，淀粉羟基引发己内酯单体进行配位聚合，淀粉接枝率可以达到16％，并通过红外光谱、X—ray衍射及DSC等测试手段对反应产物进行了表征。

To discover safe and efficient organotin compounds with application prospect becomes one of the important subjects of investigation in organotin chemistry.

寻求具有应用前景、高效低毒的有机锡化合物是目前有机锡化学研究的重要课题之一。

"Tin bonds with carbon to form organotin compounds, used to stabilize PVC and in biocides and fungicides."

锡与碳的键合形成有机锡化合物，用于稳定PVC材料，还用在杀虫剂和杀真菌剂中。

Exposure to organotin contaminated water and sediments induces accumulation of organotins in molluscs and biological effects such as imposex.

接触有机锡污染的水和沉积物中有机锡诱导积累中软体动物和生物效应，如畸变。

Objective To determine the contents of tin in seafood from the 5 sea areas of Shenzhen and to provide baseline data of organotin pollution.

目的 测定深圳海域海产品中总锡含量，以初步探明深圳海域海产品有机锡的污染状况。

The organotin compound tributyltin, has been extensively used in boat paints because of its excellent and long-lasting antifouling properties.

三丁基锡(Tributyltin，TBT)是一种影响范围较广的有机锡污染物。

Surface treatment process are: HAL, the entire plate electroless nickel gold, Gold Finger, lead-free HASL, chemical plated / silver / tin, Anti-oxidation treatment and so on, there is conductive in accordance with the requirements of customers Cypriot hole, peelable plastic, conductive plastic and a variety of models and the photosensitive ink color.

表面处理工艺有：热风整、全板电镀镍金、金手指、无铅喷锡、化学镀金／银／锡、防氧化处理等，有根据客户要求的导电塞孔、可剥胶、导电胶和各种型号及颜色的感光油墨。

Organotin compounds have attracted considerable attention by the chemists and their co-workers due to their wide applications for example as pesticidal, bactericidal and antitumour agents in many fields such as industry, agriculture and medicine. It possesses important scientific meaning to synthesize new organotin compounds and study their structures and properties.

有机锡配合物具有优异的催化、杀菌和抗癌等性能而在工业、农业和医药等领域得到广泛的应用，因而受到化学工作者的重视，因此，合成新的有机锡配合物并研究其性质具有重要的科学意义。

The results indicate that [(L 1) 2SnEt 2] can selectively bind to the N 1 atom of the base and the phosphate oxygen atom of AMP and may further destroy the helical structure of DNA, while the dimethyltin compound of 1,3 dimethyl 4 acetyl 5 pyrazolone [(L 1) 2SnMe 2] merely binds to the the phosphate oxygen atom of AMP and causes the contraction of DNA helical structure.

结论3 二甲基 4 乙酰基 5 吡唑酮的二乙基锡配合物(L1 ) 2 SnEt2 可与AMP 的碱基N1 和磷酸根氧原子螯合并可能会破坏DNA 的双股螺旋结构；而二甲基锡配合物(L1 ) 2 SnMe2 易与单核苷酸的磷酸氧结合，难以与单核苷酸的碱基氮原子稳定结合且只引起DNA 双股螺旋的收缩

Aiming at the disturbing of trace tin and trace germanium in existing simultaneous, using Artificial Neural Networks spectrometry determined simultaneously trace tin and trace germanium in extraction raffinate and stripping raffinate, tested the effect of these two metal separation and extraction.

针对微量锡与微量锗同时存在下相互干扰测定的困难进行研究，利用人工神经网络光度法比较准确的同时测定出萃余水相和反萃取水相中的微量锡与微量锗的含量，验证了两者的分离富集的效果。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了