氯化锡

The weight ratio of catalysis system and ammonium lactate being 0.005-5％, and the magnetism solid acid catalyst and tin dichloride being 20∶1-1∶20; c.

催化体系总的加入量为乳酸铵重量的0.005-5％，磁性固体酸催化剂与二氯化锡的重量比为20∶1-1∶20；c。

Objective Study the effect of tribultyltin chloride on thymocyte apoptosis and Fas protein expression in mice,try to find the mechanism of immunotoxicity.

目的研究三丁基氯化锡对小鼠胸腺细胞凋亡及Fas蛋白表达的影响，探讨TBTCL的免疫毒性机制。

Synthesis of n-butyl chloroacetate from chloroacetic acid and n-butanol in the presence of stannic chloride pentahydrate was studied.

在五水四氯化锡存在下，由氯乙酸和正丁醇合成氯乙酸正丁酯。

After As in WO3 is dissolved with NaOH solution, WO3 is coordinated by citric acid. In HCl medium, As is reduced to lwo valency As by KI and then low valency Asis reduced to gas AsH3 by SnO2 and metal Zn. After that, DDTC-Ag solution is applled as absorbent for colorimetric determinhtion.

用氢氧化钠溶液溶出三氧化钨中的砷之后以柠檬酸配位三氧化钨，在盐酸介质中用碘化钾将砷还原成低价砷，再用二氯化锡和金属锌将低价砷还原成砷化氢气体，以DDTC-Ag溶液吸收进行比色测定。

During preparation, mercapto ethanol isooctanoate, alkyl or ester tin chloride and organic solvent are first heated and refluxed while adding catalyst; organic layer is then obtained through separating liquid and decompression distilled; and through further steps, the compound is obtained. The synthesis process of the present invention is simple, and has conversion rate higher than 95 %, normal pressure and low reaction temperature, low power consumption and less pollution, and the prepared compound has high reaction activity and low toxicity.

制备时，将异辛酸巯基乙醇酯、烷基或酯基氯化锡和有机溶剂加热回流，同时加入催化剂，然后通过分液，保留有机层，再对有机层进行减压蒸等步骤制得所述化合物；本发明合成工艺简单，转化率大于95％，反应在常压条件下，反应温度低，从而降低了能耗，减少了污染，所制备的化合物具有反应活性高和毒性小的特点，使用安全。

Using tin bichloride-glycerol mixed solution as reductant,the determination method of phosphorus content for bioceramic base-material-β-calcium phosphate with phosphomolybdate blue spectrophotometry has been established.

以二氯化锡-甘油混合液作还原剂，建立了用磷钼蓝分光光度法测定生物陶瓷基材β-磷酸钙中磷含量的方法，确定了最佳测定条件。

Methods n-Cetyl-l-thio-β-D-galactoside was synthesized by a series of reaction from galactose and incorporated into Small Unilamellar Vesicles which was prepared by sonication at the ratio for L-α-PC∶Chol∶L-α-PE as 7∶2∶1, with or without 10 mol%Cetyl-gal.

半乳糖经乙酰化、溴化、缩合、亲核取代反应制备半乳糖新糖脂质并与其他脂质制备脂质体，在二氯化锡还原作用下用99mTc标记脂质体，进行动物体内靶肝实验，用γ计数器检测各脏器放射性，计算摄取率。

A suitable reducing agent of the mixture of gibberellin, glucose and tin dichloride was used as a new color reagent for the determination of silicon content in water by silicomolybdic blue method.

采用赤霉素－葡萄糖－二氯化锡混合液作为钼蓝法中的新还原剂。

In the medium of HNO3 of 0.2 mol/L, the mixture of gibberellin, glucose and tin dichloride reacts with hete-ropoly acid of silicon to form heteropoly blue with λ max=801 nm .

在 0.2 mol/L HNO3介质中，赤霉素－葡萄糖－二氯化锡混合物与硅杂多酸反应生成杂多蓝。

Two holes were used for the inlet/outlet gas lines and a third was used to introduce the reductant, 20% aqueous tin(I1) chloride (Baker Inc., No. 3980-01, Phillipsburg, NJ) in 10% HCl, using a peristaltic pump.

两个孔用于进出气孔，第三个孔用于引入还原剂。20%水和三氯化锡溶于10%盐酸中，用搅拌泵搅拌。

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。