毛细管电泳及其在朊病毒检测中的应用

本文简单介绍了毛细管电泳(CE)的发展前景,较详细地综述了毛细管电泳在朊病毒(PrPSc)检测方面的应用.CE作为1990年代末期发展最快的分析化学领域,已经在可传播性海绵状脑病(TSEs)的诊断检测方面显示了特有的优越性,成为目前唯一可以检测血中PrPSc的方法,为实现TSEs的生前诊断提供了新的思路.     

毛细管电泳及其在朊病毒检测中的应用

本文简单介绍了毛细管电泳(CE)的发展前景,较详细地综述了毛细管电泳在朊病毒(PrPSc)检测方面的应用。CE作为1990年代末期发展最快的分析化学领域,已经在可传播性海绵状脑病(TSEs)的诊断检测方面显示了特有的优越性,成为目前唯一可以检测血中PrPSc的方法,为实现TSEs的生前诊断提供了新的思路。     

毛细管电泳在毒品分析中的应用

综述了近年来毛细管电泳(CE)在毒品分析中的应用进展,介绍了不同的CE模式并给出了应用实例,展望了CE在毒品分析中的应用前景.     

毛细管电泳及芯片毛细管电泳的电容耦合非接触电导检测

综述了毛细管电泳(CE)及芯片毛细管电泳(MCE)的电容耦合非接触电导检测(Capacitively Coupled Contactless Conductivity detection,C4D)的研究状况;并分别对其装置、检测的影响因素及其应用进行了评述。引用文献81篇。     

毛细管电泳无接触电导检测研究进展

毛细管电泳(CE)电导检测(CD)是相对较灵敏和仪器结构简单的一项溶液分析技术,尤其是对于无生色团的无机离子分析更具有突出优势,因此,CE-CD技术近年来得到了较快发展[1],并已推出商品化的毛细管电泳电导检测器[2]。但CE和CD的偶联目前还存在如下几个问题:第一,加工适合于毛细管     

2015年毛细管电泳技术年度回顾

本文为2015年毛细管电泳(CE)技术的年度回顾。归纳了ISI Web of Science中检索的2015年度CE技术相关的论文,从毛细管电泳-质谱(CE-MS)联用技术、方法学研究、检测与富集、手性分子拆分及CE技术应用5个方面进行了分类说明;简要介绍了2015年涉及CE技术的国际会议6个,国内会议2个以及各会议的研究报道情况。最后,介绍了目前国内外的单克隆抗体、水质、酒类和食品分析中涉及的毛细管电泳的方法标准。     

高效毛细管电泳在核酸、蛋白质分析中的新进展

高效毛细管电泳以其分离效率高，分析速度快，样品和试剂用量少，易于实现自动化等优点，在核酸、蛋白质等生物样品的分析方面发挥着重要的作用并具有巨大的潜力。本文介绍了近两年来高效毛细管电泳技术的进展，特别是PCR／CE、CE／MS以及电泳芯片技术等方面的新发展，并综述了高效毛细管电泳在核酸、蛋白质分析方面的应用，同时对其前景进行了展望。     

大通道毛细管电泳技术的研究进展

毛细管电泳(Capillary Electrophoresis,CE)在痕量物质的分析与检测、样品的半制备与制备、多维分析以及联用技术中仍面临巨大挑战,研究者从降低电场强度、使用低电导率缓冲液、加入有机试剂、引入制冷,发展了毛细管内径大于150 μm的大通道毛细管电泳技术(Wide-bore Electrophoresis,WBE).本文综述了这一新型大通道毛细管电泳及其相关的多维和联用技术,展望了WBE的发展趋势及潜在应用.     

耦联式安培-电导检测器的研制及其在CE中的应用

毛细管电泳(CE)检测器的研究是一个具有挑战性的课题.目前已发展的一些检测方法有光学、电化学、质谱的和放射同位素等.     

基于USB技术的毛细管电泳仪的改进

高效毛细管电泳(HPCE)具有进样量少、绝对灵敏度高、分辨率高等特点,在生命科学、医学、化工、药物分析、食品、环境保护等领域得到广泛应用。1987年Ewing首次将电化学检测技术(EC)用于毛细管电泳(CE),克服了光学检测光程短、灵敏度不高的缺点,具有广泛的应用前景[1-2]。本工作     

HEPT类化合物的QSAR研究

为定量结构／活性相关性研究提取了量子化学参数,拓扑指数Am,分子连接性指数^mxt及疏水性常数,同时应用正交变换和最佳变量子集算法（Leaps-and-Bonds)进行了变量压缩和选择,进而实施了多元回归分析,并由此结果进行了HEPT类化合物（1－[(2-hydroxyethoxy)methyl]-6-(phenylthio)-thymine derivatives)的结构／活性关系的理论解释,进行了人工神经网络法对于该类化合物的活性预测,其结构明显好于多元回归法。     

Effect of the pH of the medium on the chemical shifts in the PMR spectra and on the distribution of the π-electron density

The dependence of the chemical shifts of the ring protons on the pH of the medium for a number of 4-hydroxyquinoline derivatives was studied by means of PMR spectroscopy. The dipolar and uncharged hydroxy forms exist in equilibrium in aqueous solutions. The effect of intramolecular hydrogen bonding on the character of the dependence of the chemical shift on the pH of the medium in the case of 3-piperidinomethyl-4-hydroxyisoquinoline was investigated. The possibility of the separate protonation of the ring nitrogen and the side-chain nitrogen in 3-piperidinomethyl-4-hydroxyisoquinoline was established. The distribution of the -electron density in 4-hydroxyisoquinoline is in good agreement with its chemical behavior.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 11, pp. 1546–1549, November, 1971     

Effect of the pH of the medium on the chemical shifts in the PMR spectra and on the distribution of the π-electron density

The dependence of the chemical shift of the ring protons on the pH of the medium for a number of 3-hydroxyquinoline derivatives was studied by PMR spectroscopy. The regions of ionization of the molecules, which correspond to the ranges of acidic, neutral, and alkaline media, were found. In D₂O, 3-hydroxyquinoline is present only in the uncharged hydroxy form. The presence of intramolecular hydrogen bonding in 4-dimethylaminomethyl-3-hydroxyquinoline has a substantial effect on the character of the dependence of the chemical shift on the pH of the medium; the existence of separate protonation of the nitrogen atoms of the ring and the side chain of 4-dimethylaminomethyl-3-hydroxyquinoline was established. The distribution of the -electron density in the 3-hydroxyquinoline molecule is in good agreement with its chemical behavior during electrophilic substitution.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 11, pp. 1540–1545, November, 1971.     

From the Micro- to the Macro-: Managing the Conservation of the Warship,Vasa

Sweden's famous warship, Vasa, sank on her maiden voyage in August 1628, and remained on the bottom of Stockholm harbour for 333 years. Raised in 1961, she became the first large-scale wooden object to be treated with polyethylene glycol (PEG). In the summer of 2000 a number of acidic salt precipitations were noticed on the surface of the ship and on wooden artefacts in the storerooms. An international research project has been established to look into the causes of this problem and suggest possible re-treatments. Meanwhile projects are underway to monitor movements in the ship, to build a better support system, and to replace the thousands of iron bolts holding the structure together, while a sophisticated new climate system has recently been installed in the museum.