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更新时间:2026/10/16 9:31:07关注度:622
关键词标签:四氟布氏漏斗,特氟龙布氏漏斗,抽滤装置
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聚四氟乙烯布氏漏斗及其抽滤装置,是实验室中使用的一种仪器,用来使用真空或负压力抽吸进行过滤。砂芯布氏漏斗在各位实验室老师使用反馈中效果比较好,相比于四氟布氏漏斗,砂芯可以更好的固定滤膜,让实验样品只能从滤膜中过滤,避免塌陷,周边留出不能过滤等问题
布氏漏斗形状为扁圆筒状,圆筒底面上开了很多小孔。下连一个狭长的筒状出口。
使用的时候,一般先在圆筒底面垫上滤纸,将漏斗插进布氏烧瓶上方开口并将接口密封(例如用橡胶环)。布氏烧瓶(一般建议用聚四氟乙烯材质)的侧口连抽气系统。然后将欲分离的固体、液体混合物倒进上方,液体成分在负压力作用下被抽进烧瓶,固体留在上方。
常用于有机化学实验中提取结晶。这种情况过滤完成后,还可以在上方用少量纯溶剂来洗掉结晶表面的杂质。
安装指南:
布氏漏斗的使用
先用水把滤纸润湿,抽一下,使滤纸紧靠在漏斗底端,可以防止待过滤的东西漏掉。倒入滤液,开机器抽,可以稍微搅拌,只剩下滤出物质(可见高中化学《实验化学》)
直接用普通的漏斗,贴上滤纸后,接上抽气泵进行吸滤(替代聚四氟乙烯布氏漏斗)是不行的。因为漏斗四壁紧贴滤纸处,负压吸滤对其不起作用。只有漏斗下顶角处产生压强差。由于该口较大,且只有一个口,很容易破裂。(湿滤纸不牢)
1、可代替市场上的陶瓷布氏漏斗,避免碎裂
2、耐腐蚀性强:可耐受强酸强碱、王水、魔酸、氢氟酸等有机试剂;
3、外观纯白色,耐高温:使用温度-200~250℃;
4、防污染:金属元素空白值低。铅、铀含量小于0.01ppb;
5、表面不沾,易于清洗;
6、使用真空或负压力抽吸进行过滤也可与吸滤瓶配套,用于无机制备中晶体或粗粒沉淀的减压过滤,可防止腐蚀性溶剂溅出;
7、备注:可以根据客户要求定制各种规格的布氏漏斗以及配套的抽滤装置。
公司介绍
Name of the company(English):Nanjing Ruinik Technology Development Co., Ltd.E-mail:138 138 88374@163.com
Web:http://www.njrnk.com
Nanjing Nick technology development co., LTD
The brief introduction to the company:
Our company is located in thehigh-tech business incubator,Maigao Bridge in Nanjing-an ancient capital with six dynasties. It is a modern enterprise integrating research,development, production, andsales. The companyboaststechnology research and development team with exquisite and professional knowledge, neat and bright workshop and advancedapparatusequipment with technical abundance. Our goal is to trace analysis of production research and develop the most perfect domestic vessel andto make the customer satisfiedis our eternal pursuit. We always adhere to the "focus on quality, customer first" business philosophy, which has long established good cooperative relations with customers. Wehaveset upour own reputation and brand among our counterparts. The company will, as always, provide more comfortable services for the customers!
Vision:We aim to manufacture trace analysis instruments and apparatus with global competitiveness
Mission:We willmake the sample pretreatmentas simple as possible
Values:We hold the idea of“customer first, teamwork,appreciating and dedicating”,embrace changeshonestly andpositively,bear the results-focused in mind so as to makecontribution to the society.
Goal:We willtrace analyzethevessels - your satisfaction is our pursuit!
Company philosophy: build a harmonious team forscientific development and quality-focused
We will concentrate our attention on more upon your trust!
Application fields: trace and ultra trace analysis;chemistry and chemical engineering,nuclear andgeology, photovoltaic electron, food inspection, medicine and environmental protection, physical and chemical environment of the earth, biology, geology, environmental protection, pharmacy,PV, food
Main products:
1. Trace consumables analysis including FEP, PFA, PTFE Teflon series products, digestionsystem , microwave digestion instrument in cans.
2.Apparatus:acid purification device,hotplate, cast acid plate,digestionsystem,
3.Customized products: We will provide various kinds offluorine plastic products,microwave digestion instrument in cans,hotplate, digestion system and castacid plate according to the requirements of costumers.