Aluminum alloy AA2024-T3 samples, subjected to various pretreatments, were conversion coated using Alodine 1200S.

It was observed experimentally that a chemical reaction limiting current can be affected by flow.

Microbiologically influenced corrosion (MC) of steel has been attributed to the activity of biofilms that include anaerobic microorganisms such as iron-respiring bacteria, yet the mechanisms by which these organisms influence corrosion have been unclear.

The kinetics of localized corrosion in AA2024 alloys were studied using the foil penetration technique.

The corrosion resistance of steel panels coated with pentasiloxanes has been evaluated by electrochemical impedance spectroscopy ~EIS! during exposure to 0.5 N NaCl.

The electrochemical oxidation of dense Mn films is shown to occur through the following sequence of oxides: Mn to MnO to Mn3O4 to Mn2O3 to MnO2.

Fabrication, electrochemical characterization, and applications of low-site density carbon nanotubes based nanoelectrode arrays (CNTs-NEAs) are reported in this work.

In this paper electrical and electrochemical measurements of the organic coatings conducting electric current and able to work as anodes in cathodic protection of reinforced concrete have been presented.

天然态蛋白能否在溶液中存在多种构象是一个有争议的问题。在前报道中已经鉴定出绿脓杆菌去辅基天青蛋白突变体M121L可以多种构象共存。用差热扫描量热和园二色性的方法研究了野生型去辅基天青蛋白的热变性。结果表明在pH从4.0到9.0的范围内存在着两个摩尔热容量最大值。较低温度下的去折叠反应在所研究pH范围内均部分可逆，而在较高温度下的去折叠反应均不可逆。蛋白质去折叠的热容变化双峰用可相互转化的两种构象共存模型进行拟合，较低温度下能够去折叠的构象在pH4.0时占64％，在pH9.0时占55％。监测热变性过程中园二色谱在219nm处的信号变化也可以观测到两个独立的去折叠变化。信号变化的比值与在相同条件下差热扫描法测得的两种构象摩尔比一致。上诉结果进一步支持了前文提出的去辅基天青蛋白在溶液中至少存在着两种构象的设想。

The CSC Model 4400 Isothermal Microcalorimeter (IMC) has been used extensively for battery studies. Microcalorimetry offers the advantage of detecting all reactions taking place within the battery — even parasitic reactions which limit shelf-life. The comparison of the heat produced by a complete battery versus the heat produced by partial cells or batteries fabricated without one or more components (e.g. cathode, anode, electrolyte, separator, etc.), can serve to identify the origin of non-current-producing reactions.

文章中收集了部分用美国CSC公司的CSC6100 nano II DSC差式扫描微量热仪的文章，其中有如：Energetics of the specific binding interaction of the first three zinc fingers of the transcription factor TFIIIA with its cognate DNA sequence，The energetics of HMG box interactions with DNA: thermodynamics of the DNA binding of the HMG box from mouse sox-5等文章的简介。您可以根据您的兴趣和需要查到原文。

This report summarizes a convenient approach to the synthesis of Fenclofenac. The reaction time has been decreased from 5 days to 1.5 h with an improvement in total yield from 31% to 52%.

超临界CO2 很容易溶解松散土壤中的PAHs，但是对于长时间风化的土壤比较困难。对于风化的土壤样品，添加一些试剂对于PAHs的完全萃取非常有用。 添加固定量的甲醇的萃取效果比EPA液固萃取方法有更优秀的效果。

Thermodynamic Characterization of the Folding Coupled DNA Binding by the Monomeric Thrascription Activator GCN4 Peptide

Thermodynamic Characterization of the Folding Coupled DNA Binding by the Monomeric Thrascription Activator GCN4 Peptide

使用微波合成技术，大大地增进了反应速度。并且收率也不低于传统合成的合成方法。此文章中列举了一些应用例子，明显地说明了微波化学的优点

全自动反应条件的准备 • 在惰性环境下，进行各种试剂的添加，避免某些敏感物质的变性 • 使用全自动称重和直接加样装置进行加样工作 • 树脂的添加 • 催化剂的添加 • 固体反应物的添加 • 全自动液体样品处理（反应物数量不限） 全自动对反应瓶进行加盖和密封并传送到微波反应器 • 节省空间：不需要专门的密封装置 • 样品取放自动化 微波合成技术: 快速安全 • 单模技术 • 优秀的重现性 • 绝对安全 多步反应功能 每一步完成后，可自动地添加反应物 完成反应后的自动化步骤 • 自动固相萃取（使用标准的固相萃取柱） • 自动过滤 • 液液萃取，在线蒸发

Physical Basis of Structure of Biological Macromolecules

DNA Binding and Bending by HMG Boxes: Energetic Determinats of Specificity

Binding. polysaccharides proteins calcium Binding. polysaccharides proteins calcium

微波辅助的有机合成已经迅速地成为广大合成领域. Biotage, 作为商用微波合成仪器的先行者,已经占领了70%的市场,粗略地估计,到现在,数百万的化合物已经通过微波合成的方法产生.微波合成不但提供方便和容易的途径,而且也为绿色化学打开了一片天地.

Vitamin E or a-tocopherol is a well-known antioxidant that is added to many foods to reduce oxidation. It is also marketed in vitamin formulas and as a nutraceutical. Many natural products such as soybeans, corn, safflowers, peanuts, wheat germ and sunflowers contain tocopherols in low concentration. Because of the high market value placed on natural tocopherols, their isolation from natural sources in a highly purified form is desired. The oily nature of these natural product matrices creates problems when isolating tocopherols. Direct injections of neat oil or oil dilutions of natural products onto reversed phase HPLC columns cause many problems including coating the stationary phase with lipids that leads to ghost peaks, unstable baselines and short lifetimes. Using reversed phase flash chromatography as the preliminary isolation step allows the tocopherols to be concentrated and have fewer oils as contaminants thereby increasing the lifetime of the HPLC columns.

New High Speed Regioselective Heck Coupling Reactions Assisted by Microwave Flash Heating Qisheng Zhang ect. Department of chemistry,university of Pittsburg 生物技术在药物筛选领域内的广泛应用加快了药 物筛 选的速度，快速地合成并发现一些新的药物及先导体 已成 为现代药物学发展的严重瓶颈。化学家们合成的新 “药 物”的种类和数量已远远不能满足筛选的需要；通常 化学 家们花费6-20个月的时间合成的“药物”分子仍不能 满足 药物筛选一个星期的的工作量。 微波化学合成技术具有反应速度快、自动化程度 高、 重现性好等诸多特点，其在药物合成领域用来发现先 导化 合物有着广泛的前景。本文介绍了采用瑞典Personalc hem istry公司微波化学合成仪合成一些具立体选择性的HE CK 偶合类反应。

固相萃取技术在制药领域中的应用，主要用固相萃取柱进行水质样品中微量有害化合物的分离、萃取、浓缩、富集。固相萃取柱的具体操作方法，包括固相萃取柱的活化、加样、冲洗、洗脱，每一步骤都要求使用不同的溶剂，该应用文章中提供具体的操作步骤。

用固相萃取柱从农产品中萃取多环芳烃（PAHs），多氯联苯（PCB），有机氯农药，有机磷农药等化学物质。

参比电极的不适当使用是造成电化学实验失败的重要原因，但是多数研究者并不注意这一点。本文总结了大多数由参比电极不稳定造成的实验失败的原因，并给出了一些参考解决办法。

气凝胶具有许多纳米尺寸的多孔材料.其表面面积大,密度低,绝热性能好. 超临界萃取是一种气凝胶干燥的有力工具.此技术可以减少时间,溶剂用量,避免长时间使用高温.同时避免传统方法产生的凝胶破裂现象.

使用CO2超临界萃取技术对食品和农产品中有机氯农药的检测，不但安全而且环保。消除了使用有机溶剂对环境和人体的影响。

微波合成技术由于其快速,干净和和安全越来越受到青睐,微波合成数据库也成了微波合成最佳条件寻找的有力工具.

使用微量探头分析了不同树脂、溶剂、温度对1H NMR线宽的影响，并运用高分辩魔角旋转核磁技术跟踪固相载体上羟基氨基酸的糖基化反应。