欢迎来到天天文库
浏览记录
ID:60787717
大小:123.50 KB
页数:2页
时间:2020-12-18
《磁微粒化学发光讲课稿.doc》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、精品好文档,推荐学习交流微粒子化学发光免疫分析原理:异硫氰酸荧光素(FITC)标记的抗体、待测抗原与碱性磷酸酶(AP)标记的抗体形成“三明治”结构的复合物。随后加入连有抗荧光素抗体的磁性微粒,通过抗荧光素抗体与荧光素的特异性结合使抗原抗体复合物连接在磁颗粒上,在外加磁场中直接沉淀,将免疫反应形成的复合物与未结合的其他物质分离。去上清后清洗沉淀的复合物,加入酶促化学发光底物。底物在酶作用下被催化裂解,形成不稳定的激发态中间体,当激发态中间体回到基态时便发出光子,形成发光反应,即可使用发光仪检测反应的发光强度。发光强度与待测抗原含量呈正比,使用
2、相应的计算方法便可计算出样本中待测抗原的浓度。微粒子化学发光免疫分析原理示意图Unit2Part1LanguageSkillsDevelopment1.StarterA.Lookatthefollowingpictures.Thinkoverthesequestions.仅供学习与交流,如有侵权请联系网站删除谢谢2精品好文档,推荐学习交流1.Whatwaysofgettingrichdothesepicturessuggest?Referenceanswer: Thefourpicturesrepresentfourdifferentway
3、sofgettingrich.Thefirstpicturesuggeststhatonecangetrichquickbybuyingstocks.Thesecondpictureshowsthatpeoplecanbecomerichthroughinheritanceoffortunes,eitheroftheirownparents,orofsomewealthypersons.Thethirdpictureindicatesthatmarriagecouldbeapassporttothekingdomofwealth.Thati
4、stosay,amanorawomancouldbearichpersonifhisorherspouseisrich.Thefourthpicturetellspeoplethatlotteriesmakemillionaires.2.Whichdoyouthinkisthequickestwaytogetrich?Referenceanswer: Allthesefourmethodsofgettingrichquickcouldturnapennilessguyintoamillionaireovernight,butitseemst
5、omethatwinningalotteryisthequickestwayofmakingpeoplerich.Justpayadollarortwoandyoucouldbecomearichpersonovernight!Butontheotherhand,suchanopportunityisveryrare.B.ListentothestoryAliBabaandtheFortyThieves(Part1)andanswerthefollowingquestions.1.Whatwerethemagicwordsusedtoope
6、nandclosethecave? Theywere"Open,Sesame!"and"Shut,Sesame!".2.WhatdidAliBabafindinthecave?仅供学习与交流,如有侵权请联系网站删除谢谢2
此文档下载收益归作者所有