发展从大范围含低浓度铀酰离子的水中(海水和盐湖）铀的提取技术对于环境保护和资源利用有着重要的意义1-3.其核心难点在于吸附剂对低浓度铀要有较大的吸附力和高的吸附容量,同时能够实现铀酰的脱附浓缩和吸附剂的循环回用.近些年来,研究者已注意到利用盐湖、海水中丰富的MgCl2资源可以合成不同种类的镁基纳米材料.本工作系统研究纳米Mg(OH)2与不同浓度铀酰离子的相互作用机制,同时发展利用界面调控实现高盐体
当前我国大气复合污染日趋严重,大气污染物形成机制表现出与发达国家不同的特征.亚硝酸(HONO)是对流层光化学中一种重要的痕量气体,在城市大气污染中起重要作用,是大气中羟基自由基(OH)的重要来源之一.OH是大气中一种关键氧化剂,能够与挥发性有机化合物(VOC)反应及引发光化学反应,产生臭氧(O3)和其他二次污染物.较早的研究表明HONO对大气中羟基自由基(OH)的贡献达30-50 ％[1,2].
The adoption of non-equilibrium atmospheric-pressure plasma in material synthesis and surface pretreatment offers distinct advantages over traditional approaches since no severe experimental condition
Excessive cadmium(Cd)has been found in rice of many districts.In consideration of the immense harm of Cd,developing a simple,effective and green digestion method for Cd-containing rice and detecting i
A new design of miniaturized,atmospheric-pressure,low-power glow discharge(GD)microplasma as an optical emission spectrometry(OES)1 excitation source was described,and used for determination of trace
A protein-free method for trace metal determination in fruit juice was established using microdialysis sampling combined with inductively coupled plasma mass spectrometry.Fruit juice is one of the mos
A new disease named nephrogenic systemic fibrosis(NSF)was suggested to have a potential association with the usage of gadolinium-based contrast agents in 2006[1,2].
Single cell analysis(SCA)techniques are attracting increasing interest for clinical application because they can elucidate the cellular diversity and heterogeneity instead of the stochastic average ma
An isotope dilution inductively coupled plasma mass spectrometry(ID-ICP-MS)method has been developed and applied to the determination of silicon content in alumina samples.
Uranium is widely used as nuclear materials with natural radioactive.It probably be leaked into the environment in the development and application of nuclear technology[1].