8-羟基喹啉-5-磺酸-溴化十六烷基三甲铵荧光法测定水中铝的探讨

作者根据铝与8-羟基喹啉-5-磺酸(H_2QS)和溴化十六烷基三甲铵(CTMAB)的荧光反应,采用930型荧光计,测定水中铝含量在0～1.5μg/ml范围内有良好线性关系。方法的回收率为87.9％～105.0％,变异系数为2.9％～8.9％,铝的最低检出量和最低检出浓度分别为0.3μg和3×10~(-2)μg/ml。此法适于饮水和天然水中铝含量测定,具有灵敏、准确、所需仪器简单的特点。     

Synhydfid（SDMA）——堪与氢化锂铝媲美的还原剂

Synhydrid(SDMA)，化学名为二氢—双(2—甲氧基乙氧基)铝酸钠[sodium dihydrido—bis(2—methoxyethoxo)aluminate]，分子式为、NaAlH2(OCH2CH2OCH3)2。SDMA可作为LiAIH4的替代品，主要用于医药工业的有机合成。目前，全球年消耗量约为800吨。SDMA与NaAlH4具有可比性，常用于制备一些挥发性氢化物，例如SiH4，SiRxH4-x，SnRxH4-x等。     

四种单一磺化度的铝酞菁光动力学效应杀伤小鼠S_（180）肉瘤的研究

四种单一磺化度的铝酞菁光动力学效应杀伤小鼠Ｓ_（１８０）肉瘤的研究余宏宇，赵克开，张鹭，陈勇，宝建中，蔡建明，龚志锦，陈晓东衡量某种光敏剂是否有应用前景，除了必须考虑其光毒副作用的轻重外，更主要需要考虑的是它对一定厚度的肿瘤是否具有有效的光动力学杀伤?..     

大鼠摄入铝,氟及其不同比例混合物后血和骨中铝氟含量分析

Wistar rats were divided into 8 groups:control, 300 ppm F, 130 ppm F, 300 ppm Al, 1200 ppm Al, 130 ppm Al + 130 ppm F. 300 ppm Al + 300 ppm F and 1200 ppm Al + 300 ppm F. The chemicals were mixed into the standard diet. The animals were fed on the diets for 12 weeks. Contents of F, Al, Ca and P in the blood (or serum) and humerus were determined at the end of 12 weeks. The results showed that the level of F in the blood and bone in the unadulterated F group was increased, especially F in the bone reached a level more than 10 times that of the control. In the 3 mixture groups, blood F and bone F were lowered, while blood F was restored to normal level, but bone F was not nevertheless, the results showed that Al was in antagonism to the absorption of F. In the unadulterated Al groups, blood and bone Al did not parallel with the amount of Al administered. The level of Al in the median Al group was higher than that of the high Al group. Taking the level of blood and bone Al as a measure, when different doses of Al were administered with F, in the low and median dosage of Al, F was in antagonism to Al absorption, but in case of high dosage of Al, F was in potentiation to Al absorption. In all the experimental groups serum P was elevated, but serum Ca was not disturbed. Bone Ca and P were decreased only in the 3 groups with unadulterated F as well as unadulterated and adulterated high dosage of Al. Mechanism of the nonlinearity of Al absorption vs Al dosage, as well as the dual effect of F on the absorption of Al was proposed.     

炼铝作业工人受氟化物危害的调查分析

为了解电解铝生产氟污染状况及氟化物对作业工人的健康危害，对某铝厂电解铝车间进行了劳动卫生学调查及作业工人的健康体检，其结果报告如下。     

铝碳酸镁混悬液治疗消化性溃疡的多中心临床验证总结

本临床验证目的是验证南宁制药企业集团公司研制的铝碳酸镁混悬液消化性溃疡的效果及安全性。由 北京和文本五家医院，用随机开放的对照研究方法，完成可评价病例１７７例，其中铝碳酸镁混悬液１０５例，西咪替丁对照组７２例。研究方法；用铝碳酸镁混悬液１００ｍｌ（１ｇ）／次，一日四次；     

AlEtCl_2／t－BuCl引发α－蒎烯阳离子聚合反应研究

考察了在ＡｌＥｔＣｌ２／ｔ－ＢｕＣｌ引发体系作用下的α－蒎烯阳离子聚合行为．结果表明，ｔ－ＢｕＣｌ与ＡｌＥｔＣｌ２复合后，由于生成（ＣＨ３）Ｃ正离子而使引发活性增大．但ｔ－ＢｕＣｌ的引人对产物分子量及其分布影响不大，产物主要由二、三聚体组成．聚合过程的动力学研究表明，α－蒎烯在进行阳离子聚合时容易发生链终止反应而导致单体转化率和产物分子量较低．α－蒎烯在聚合反应的同时伴随着异构化反应，用制备ＧＰＣ分离出异构化产物，然后经１ＨＮＭＲ测定其结构．     

AlEtCl2／t—BuCl引发α—蒎烯阳离子阳合的反应研究

在实验室绝热反应器中进行了乙苯脱氢制苯乙烯的反应动力学研究。根据不同反应机理，提出五种反应模型，经残差分析及模拟计算规律与实验规律的比较，确定Ｃａｒｒａ双曲模型为最佳反应动力学模型。通过对实验数据的回归拟合，经参数估计求得了速率方程的频率因子和活化能。