排序方式: 共有32条查询结果,搜索用时 171 毫秒
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用化学方法成功地将放射增敏剂灭滴灵连接到对癌细胞具有定位作用的原卟啉上,通过红外光谱、紫外可见吸收光谱、质谱、核磁共振谱和元素分析等手段确证了其结构。经动物实验证明,放射增敏效果较好。 相似文献
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长脂肪碳链卟啉的合成及其LB膜的制备和气敏性质研究 总被引:2,自引:0,他引:2
1983年RuaudelTeixier[’j首先合成了两类具有长脂肪碳链的双亲性叶咐,其成膜性表明,它们可以形成良好的LB膜.M6hwald‘’修合成了不对称可成股叶琳,并对其膜结构和分子间作用进行了研究.Lecomte“‘等用钴叶琳和咪吐等衍生物以混合交替形式来模拟血红蛋白的吸氧及放氧过程,发现它可作为氧的载体.Tredgold[“报道了用铜、钻、镍、锰叶琳和无金属叶琳的LB膜元件对NO。、H。S和CO进行检测,发现铜叶琳对NO。有很高的敏感性,而对其它气体则无反应,显示出良好的选择性.本文在合成6种长脂肪碳链的双亲性叶琳化合物的基础上,… 相似文献
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制备无水四氯化锡的微型实验 总被引:2,自引:0,他引:2
介绍了用微型实验使金属锡和氯气作用制备无水四氯化锡的方法。产率为93.7%。此法产率高,污染小,时间短,费用低。可代替常规实验用于教学。 相似文献
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Pressure Effects on Solid State Phase Transformation of Aluminium Bronze in Cooling Process 下载免费PDF全文
Effects of high pressure (6 CPa) on the solid state phase transformation kinetic parameters of aluminum bronze during the cooling process axe investigated, based on the measurement and calculation of its solid state phase transformation temperature, duration and activation energy and the observation of its microstructures. The results show that high pressure treatment can reduce the solid phase transformation temperature and activation energy in the cooling process and can shorten the phase transformation duration, which is favorable when forming fine-grained aluminum bronze. 相似文献
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This paper reports that the ratios of double to single electron loss cross-section (R) of O^2+ in collision with Ar and He at the velocity of 1 -4 vo(vo is the Bohr velocity) have been obtained by the coincidence technique. The trend of R - V in the experiment indicates that the effective charge varies with injected velocity. The effective charge can be obtained by the n-body classical trajectory Monte Carlo method, which is interpreted by the molecular Coulomb over barrier model. 相似文献