Column chromatography is frequently used by organic chemists to purify liquids (and solids.) An impure sample is loaded onto a column of adsorbant, such as silica gel or alumina. An organic solvent or...

Reagent Works well for Colors Notes Iodine Unsaturated and aromatic compounds Brown spots Not permanent Sulfuric acid General stain Brown or black spots Chromic acid For difficult to stain compounds B...

转自：http://blog.sciencenet.cn/blog-1678-972725.html 最近，我在忙于教育部博士论文抽检的评审工作，遇到一篇博士论文让我惊讶不已。惊讶最初源于论文目录中的...

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实验准备： 1．配好的PBS装入锥形瓶中。 2.高压吸管筒，PBS，滤器，蓝枪头，EP管，干净的青瓶。 3.用称量纸称取青霉素、链霉素使最后溶液青霉素、链霉...

瑞典国王古斯塔夫亲自为屠呦呦颁奖 屠呦呦在诺贝尔颁奖典礼上的讲话，转载如下。 尊敬的主席先生，尊敬的获奖者，女士们，先生们： 今天我极为荣幸...

Careers in Science and Technology: A Student Planning Guide to Grad School and Beyond （ http://www.nap.edu/openbook.php?record_id=5129 ） Skills and Attributes that Contribute to a Successful Caree...

胡林峰研究小组招新 实验室简介： 胡林峰研究小组主要开展抗菌化合物活性筛选，活性成分分离等研究。目前实验室开展的工作主要是抗菌活性测定、微...