批量过滤系统

赛多利斯（Sartorius）作为一家国际领先的实验室仪器、生物工艺解决方案和设备的供应商，近期推出了全新的Claristep过滤系统 ---批量过滤解决方案该系统可适用于分析和质量测试实验室，用在高压液相色谱（HPLC）或者其它分析方法之前的样本过滤。澄清过滤是样品上样分析前的必须且非常重要的操作，随着技术的进步，如何对小体积、大批量的样品进行快速的澄清过滤，同时避免杂质和溶出物的污染，成为必须要考虑的因素。针对这一需求，赛多利斯开发了Claristep过滤系统。该系统设计新颖，简单易用，一目了然，效果可靠。Claristep是一个过滤套装包含两个部分：Claristep过滤器和 Claristep工作站。两部分配合，采用手动操作，巧妙地对样品进行澄清过滤，给您带来新奇体验。工作站的盖子采用专利设计，拥有独特的轨道槽，保证了工作站操作的便利性和可靠性。Claristep?过滤管配有RC滤膜，特别适合溶剂以及水溶液的过滤。不需要注射器，不需要对样本进行任何复杂的操作，您所需要做的只是将样品移液到过滤器中， 这同时也意味着更少的浪费。您可以同时过滤8个样品，加快了整个过程的速度。“Claristep系统是非常灵活、紧凑并且轻巧的，使用最少的力量，几乎不占用多少空间。不需要电源，不需要真空，也不需要压力源，可以携带去任何地方来工作。在第一次测试的时候我非常惊喜这整个过程是如此容易和快速，就和关上冰箱门一样简单。Claristep非常聪明，并且绝对是全新的一个工具。我相信用户在第一次使用的时候会像我当初一样吃惊，因为他们从没想过会这么容易，这确实是非常酷的事情。”——赛多利斯研发部经理陈方先生说道。赛多利斯集团是一家国际领先的实验室仪器、生物制药技术和设备的供应商，提供生物工艺过程、实验室产品与服务、工业称重产品。赛多利斯集团成立于1870年，总部位于德国哥廷根，在全球已拥有6,000多名员工。其生物工艺解决方案涵盖过滤、液体处理、发酵、细胞培养和纯化，并致力于生物制药行业过程控制。实验室产品及服务部主要生产实验室仪器及耗材。工业称重专注于对食品，化工和制药行业生产工艺过程中的称重、监控和控制。赛多利斯集团在欧洲、亚洲以及美洲都拥有自己的生产及研发机构，并已在全球110多个国家设立了办事处及代表处。 赛多利斯中国 电话：400.920.9889 / 800.820.9889传真：021.68782332邮箱：info.cn@sartorius.com官网：www.sartorius.com.cn

为了促进国内分析电镜技术的普及， 介绍电子能量损失谱仪硬件及应用发展， 美国 Gatan 公司与日本电子公司将与 12 月 2 日在上海交通大学举办能量过滤分析电镜技术讲座。 本次讲座特别针对能量损失谱仪（Electron Energy Loss Spectrometer--EELS） 技术 及透射电子显微镜技术， 邀请了美国 Gatan 公司、 日本电子株式会社（JEOL Ltd.） 的专 业技术人员， 向大家介绍电子能量损失谱仪及分析型电镜的先进技术， 将最新的信息分享 给国内的电镜用户。 除了国外专家分享电镜技术的发展现状之外， 我们还安排了现场上机演示环节。 包括能量 过滤元素面分布（EFTEM）、 扫描透射(Scanning Transmission Electron Microscopy, STEM)模式下利用 High-Speed Spectrum Imaging 与 DualEELS 技术进行成分鉴定及 物相分析等先进技术。上海交通大学购买了两台日本电子的球差校正透射电镜JEM-ARM200F,冷场发射和热场发射各一台，分别安装了聚光镜和物镜球差校正器，都配置了Gatan的EELS系统。

据JEOL USA消息, 美国德克萨斯大学埃尔帕索校区(UTEP)购买日本电子株式会社最新型300kV高衬度能量过滤冷冻透射电镜(cryo-TEM)JEM-3200FS用于结构生物学研究。包括日本电子株式会社最新开发的病毒自动分析软件(JADAS)。　　项目负责人是结构生物学家Dr. Ricardo Bernal and Dr. Chuan “River” Xiao：研究方向为单颗粒重构和断层扫描显微分析(single particle reconstructions and tomography)，该研究组还将同时引进大分子NMR，大分子x射线衍射仪等大型设备。　　使用冷冻透射电镜JEM-3200FS的研究包括测定感染并杀死细菌的噬菌体和病毒的结构，从而找到因细菌耐药性而失去效力的抗生素替代品。还将研究引起人类50%以上感冒的小核糖核酸结构/受体复合物。附：December 16, 2009 (Peabody, Mass.) -- The University of Texas El Paso has selected a JEOL cryo-electron microscope for its emerging structural biology program to be housed in a new building planned for completion in 2011 on the UTEP campus. The JEM-3200FS that was ordered from JEOL USA is a 300 keV cryo-TEM with an omega energy filter for increased contrast and high resolution. The UTEP research program directed by structural biologists Dr. Ricardo Bernal and Dr. Chuan “River” Xiao, will utilize cryo-electron microscopy for single particle reconstructions and tomography. “This 300 keV field emission gun TEM will provide all the capabilities we need to establish a world class facility at UTEP,” Dr. Bernal said. “Our goal is to set up a structural biology program that includes macromolecular NMR, macromolecular X-ray crystallography, and cryo-EM.” Research projects for the new JEOL cryo-TEM include the structure determination of bacteriophages, viruses that infect and kill bacteria, in an effort to find alternatives to antibiotics which are losing their effectiveness due to bacterial resistance. The TEM will also be used to analyze the structure of picornavirus/receptor complexes, responsible for more than 50 percent of all human common colds. Other projects include the structure of ATPases and chaperonins. The expertise of Drs. Bernal and Xiao has resulted in collaborations on more than 12 research projects involving nine researchers across four departments and two universities. Research projects for the new JEOL cryo-TEM include the structure determination of bacteriophages, viruses that infect and kill bacteria, in an effort to find alternatives to antibiotics which are losing their effectiveness due to bacterial resistance. The TEM will also be used to analyze the structure of picornavirus/receptor complexes, responsible for more than 50 percent of all human common colds. Other projects include the structure of ATPases and chaperonins. The expertise of Drs. Bernal and Xiao has resulted in collaborations on more than 12 research projects involving nine researchers across four departments and two universities. In one of the largest instrumentation grants awarded to UTEP, the National Science Foundation will fund the purchase of the new high resolution, high performance cryo-TEM, which will be shipped from JEOL, Ltd. in Akashima, Japan. The JEM-3200FS will include an optional JEOL Automated Data Acquisition System (JADAS) specially developed for cryo-electron microscopy, and a high tilt tomography cryo-transfer system. The JEM-3200FS combines high resolution and 0-loss sample imaging with analytical performance in a 300kV class analytical TEM. The modular nature of the JEM-3200FS will allow easy adaptation to emerging and promising techniques, such as phase-plate microscopy using Zernike and electro-static phase plates. “This is one of the JEOL high end TEMs that is gaining widespread use in the U.S. specifically for cryo-tomography. We have worked closely with customers to develop more of the features structural biologists need,” said Dr. Thomas Isabell, Director of TEM at JEOL USA