3种不同材质输液容器对15种药物的吸着性实验

目的 考察含有 0 9%氯化钠和 5 %葡萄糖的 3种材质输液容器对 15种药物的吸着性。方法 将一定量的 15种药品分别加入含有 10 0mL或 2 5 0mL 0 9%氯化钠和 (或 ) 5 %葡萄糖的M312非PVC输液袋、玻璃输液瓶和PVC输液袋中 ,于混匀后的0 ,1,3,2 4及 4 8h取样 ,采用高效液相色谱法测定药物浓度。结果 4 8h相对 0h的药物含量百分数 :①在PVC输液袋中 ,胰岛素、硝酸异山梨酯、硝酸甘油和地西泮在 13 2 8%～ 6 8 83%之间 ;②在玻璃输液瓶中 ,硝酸异山梨酯和硝酸甘油在 70 72 %～76 2 2 %之间 ,香丹注射液中的原儿茶醛下降百分数小于 12 % ;除水溶液中不稳定药物外 ,其他药物下降百分数小于 7% ;③在M312输液袋中 ,除水溶液中不稳定药物外 ,其他药物下降百分数小于 8%。结论 PVC输液袋及玻璃输液瓶对一些药物有吸着 ,临床使用这些药物时应避免选用该材质 ;若不能避免选用 ,应考虑适当增加剂量。

3种不同材质输液容器对15种药物的吸着性研究

目的考察15种药物在3种不同材质输液容器(PVC输液袋、M312C非PVC输液袋、玻璃输液瓶)中的吸着性。方法将15种药品溶于上述3种不同材质容器的输液中,分别于混匀后的0,1,3,24,48h取样,采用高效液相色谱法测定药物浓度。结果当药物于输液中混合48h后,其中药物的含量与0h相比:①在PVC输液袋中,胺碘酮、氯丙嗪和表柔比星的含量下降至76·76%89·84%之间;②在M312C非PVC输液袋及玻璃输液瓶中,除在水溶液中不稳定的药物外,其他药物含量的下降均小于10%。结论PVC输液袋会对一些药物有吸着,临床应避免这些药物在PVC输液袋中使用。

涂料吸着性对消失模铸造铝铸件孔隙率影响的研究

研究了涂料组成、密度、涂层厚度、温度等对涂料吸着性的影响。研究发现 ,涂料组成中以凹凸棒土对涂料吸着性的影响最大 ,涂料中加入 2 %凹凸棒土可以使涂料的吸着性提高 81%。探讨了涂层的吸着性与铝铸件孔隙率之间的关系 ,认为对于铝合金消失模铸造 ,涂料吸着液态聚苯乙烯的能力越强 ,越有利于减少铝铸件的孔隙率。试验结果表明 ,自制的HW 1涂料可与美国Ashland涂料相媲美 。

油吸着性树脂研究进展

对油吸着性树脂的国内外研究状况作了综合评述,并对油吸着性树脂开发所面临的问题以及发展趋势作了简单介绍。

新材质输液容器对药物的吸着影响

目的:综述新材质容器对药物的吸着影响,为临床合理用药提供参考。方法:对相关国内外文献进行分析和归纳。结果:新材质容器会对一些药物产生不同程度的吸着,这些药物包括:循环系统药物、神经系统药物、内分泌系统药物等。结论:临床应用时应避免选用该类材质。

Biosorption Equilibrium and Kinetics of Au（Ⅲ） and Cu（Ⅱ） on Magnetotactic Bacteria

Magnetotactic bacteria （MTB） as biosorbents for the adsorption of Au（Ⅲ） and Cu（Ⅱ） ions from aqueous solution have been investigated. The optimum adsorption conditions for both metal ions were the initial pH scope of 1-5.5 for Au（Ⅲ） and 2.0-4.5 for Cu（Ⅱ）, room temperature, biomass concentration of 10.0g.L^-1 and sorotion du-ration more than 10 min. When the initial metal concentration were within 500mg.L^-1, the maximum biosorption capacity of 1.0g of MTB （dry mass basis） for Au（Ⅲ） and Cu（Ⅱ） were calculated as 505.2mg of Au（Ⅲ） and 493.1mg of.Cu（Ⅱ） by Langmuir model in single system, respectively. The isotherm equilibrium of Au（Ⅲ） and Cu（Ⅱ） ions in the Au-Cu binary system reflected a unique phenomenon that the adsorption of Au（Ⅲ） was rein-forced and that of Cu（Ⅱ） prohibited, compared respectively-with their performances in the single metal system.When the,concentration of-Au（Ⅲ） and Cu（Ⅱ）. were below 80mg.L^-1, the waste waterafter MTB treating, wasbelow 1.0mg.L^-1, which is in conformity with Environmental Performance Standards （EPS） of Canada. Besides, all the kinetic data were fitted well to the pseudo second-order kinetic model with a high correlation coefficient （R^2〉0.999）.

Use of Polypropylene Non-woven as Sorbent of Oil Small

In this work, the mechanical tensile and elongation properties and the non-woven polypropylene flammability were evaluated, with variations of gratings, compared to non-woven fabrics prepared with thermo film and TNT （fabric non-fabric）, for applications such as geotextile sorption of oil spills. The results showed high values of tensile strength for non-woven fabric prepared for application as geotextile, improving the mechanical properties of rupture.

Gaseous sorption and electrochemical properties of rare-earth hydrogen storage alloys and their representative applications： A review of recent progress

The improvement of hydrogen storage materials is a key issue for storage and delivery of hydrogen energy before its potential can be realized. As hydrogen storage media, rare-earth hydrogen storage materials have been systematically studied in order to improve storage capacity, kinetics, thermodynamics and electrochemical performance. In this review, we focus on recent research progress of gaseous sorption and electrochemical hydrogen storage properties of rare-earth alloys and highlight their commercial applications including hydrogen storage tanks and nickel metal hydride batteries. Furthermore, development trend and prospective of rare-earth hydrogen storage materials are discussed.