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氮吹仪如何选择

2018-1-15 11:23:48      点击:

进口氮吹仪也叫氮气吹干仪,自动快速浓缩仪等,能够将氮气快速、连续、可控地吹到加热样品表面,实现大量样品的快速浓缩。今天小编主要来介绍一下进口氮吹仪原理和优点,希望可以帮助用户更好的应用产品。

进口氮吹仪的原理

加快蒸发有两个方法:加强它周围的空气流动和它的温度。氮气还是一种不活泼的气体,也能起到隔绝氧气的作用,防止氧化。氮吹仪就是通过这些原理达到了浓缩的目的。它将氮气快速、连续、可控地吹到加热样品表面,实现大量样品的快速浓缩。

进口氮吹仪的优点

1.一次可处理多个样品,在多因素、多水平的重复实验中优势更为明显。

2.实验操作简洁、灵活。可以不受约束地注册会计随时调节浓缩的进程。

3.实验中不需要操作者长时间的维护,节省人力。

4.旋转蒸发仪在溶剂沸腾时可能会造成样品的损失,而氮吹仪在浓缩时准确、灵敏可避免样品损失。

Shanghai qiyue education how to use water bath heating nitrogen blower or dry heating nitrogen blowing device


1. Water bath heating is usually need to heating of the tube is placed in a beaker of water, heat sources for heating water, water to hand to a test tube, the heat can be seen as an indirect heating process, is different from direct contact with heat source heating dry; In addition because


In the process of the water bath heating, insert a thermometer in a beaker of water, and be able to real-time observation of the water temperature is very good control the temperature of the water, dry heating law is difficult to realize the real-time control of temperature.


2. In the process of water bath heating, the test tube is immersed in beaker water. And the dry heating method is usually the bottom of the tube is hotter than the upper part.


3. Water bath heating temperatures slow cooling are slow, and heating temperature does not exceed 100 ℃, is a kind of "moderate" heating mode; Dry heat to heat up fast cooling fast, heating temperature can be as high as 150 ℃, can be thought of as a "JiHuo" heating,


The two heating modes are applicable to different material samples.


4. Some organic substances should not be exposed to open fire, so the heating process must be in the form of water bath; There are some organic metal reagents that are not easy to contact with water, so you can't use water bath heating (because water bath heating can produce a lot of water steaming