低能离子生物学

介绍了低能离子生物学的产生、发展历程，及其在植被、微生物的品种改良、基因工程等方面的应用，展望了低能离子生物学今后的发展前景。     

Science Letters:A new configuration of membrane stack for retrieval of nickel absorbed in resins

A new configuration integrated ion exchange effect with both electro-migration and electrochemical reaction in a single cell was developed to effectively retrieve metal ions from simulated wastewater using ion exchange resins without additive chemicals. By simply assembling cation exchange resins and anion exchange resins separated by homogeneous membranes, we found that the system will always be acidic in the concentrate compartment so that ion exchange resins could be in-situ regenerated without hydroxide precipitation. Such a realizable design will be really suitable for wastewater purification.     

离子注入聚醚砜薄膜的导电特性研究

用15keV的N^ 和Ar^ 注入PES，纯PES膜表面电导率提高了5个数量级，掺碘PES膜表面电导率提高4个数量级。表面电导率随剂量的变化关系具有饱和性。掺碘使未注入的PES膜表面电导率提高近一个数量级，掺碘对提高注入离子的PES膜的表面电导率作用不大。在低剂量时，注Ar^ 样品的表面电导率大于注N^ 样品的表面电导率。在最高剂量时，表面电导率和注入离子的种类无关。离子注入PES膜的表面电导率在空气中非常稳定。在0～30V范围内，离子注入PES膜的表面电导率随电压的增加而缓慢增加。     

用离子交换法从废银液中回收银

本文介绍了利用离子交换法从含银废液中以硝酸银的形式回收银的方法。     

A new configuration of membrane stack for retrieval of nickel absorbed in resins

INTRODUCTION To meet the needs of wastewater recovery andreuse, ion exchange was commonly used especiallyfor the purification of electroplating rinse water con-taining nickel and other heavy metal ions (Koivula etal., 2000). Although ion exchange resins have manyadvantages over chemical precipitation, some draw-backs of the method are inevitable. When the ionexchange resins are saturated with metal ions, addi-tive chemical reagents (acid and alkali) are needed toregenerate the resins and…     

DLL程序反射植入技术研究

分析反射技术和反射植入原理,重点阐述DLL程序反射植入技术。     

石墨炉原子吸收光谱法测定土壤中离子交换态的镉

本文研究了石墨炉原子吸收光谱法测定土壤中离子交换态的镉的适宜条件。试样经MgCl2溶液震荡提取离心后,以10%的磷酸二氢铵做基体改进剂,方法检出限为0.03840μg/L,相对标准偏差（n=6）为0.9231%。本方法具有准确、简便之优点,可用于土壤样品中镉的测定。     

Determination of fluorinated quinolone antibacterials by ion chromatography with fluorescence detection

For preparing fluorinated quinolone antibiotic medicine locally used in stomatology, simultaneous determination of norfloxacin, ciprofloxacin, and enoxacin was carried out by multiphase ion chromatography with fluorescence detection. Quinolone antibiotics were separated by Dionex OmniPac PAX-500 column with an eluent of 15 mmol/L H2SO4 and 35% methanol （v/v） at a flow-rate of 1.0 ml/min and detected with fluorescence with excitation and emission wave lengths of 347 ran and 420 ran respectively. The detection limits （S/N=3） of norfloxacin, ciprofloxacin and enoxacin were 50, 105 and 80 ng/ml respectively. The relative standard deviations of retention time, peak area and peak height were less than 1.1% and good linear relationship resulted. The developed method was applied to pharmaceutical formulations and biological fluids.     

氮离子注入钛合金表面的耐点蚀性能研究

在Ti-6Al-4V合金表面分别注入3×1017、6×1017、9×1017和2×1018N+/cm2四种剂量的氮离子后,测定了基体材料和四种不同注入剂量下试样在3.5％NaCl溶液中的阳极极化曲线,并对它们的耐点蚀性能进行了比较.结果表明,在五种试样中,以3×1017注入剂量下具有最好的耐点蚀性能,但它的再钝化能力相对较低.     

氯离子对结晶紫-银胶-HOPG体系近红外表面增强拉曼散射增强作用的研究

利用银胶纳米颗粒与高取向性热解石墨（HOPG）制备表面增强基底,采用近红外激光（1064nm）激发,研究了氯离子对结晶紫（CV）分子近红外表面增强拉曼散射（Near-Infrared Surface-Enhanced Raman Scattering,NIR-SERS）的影响。结果表明,氯离子对“化学增强”和“物理增强”都有作用。同时利用扫描电镜（SEM）图像间接证明了这一结论。