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电感耦合等离子的详细常识(Inductively coupled plasma)
www2138com官网:0 发布时间:2016-08-22
 

电感耦合等离子体是由高频电流经感应线圈产生高频电磁场,使工作气体形成

Inductively coupled plasma is a high frequency electromagnetic field generated by the high frequency current through the induction coil, so that the working gas is formed.

等离子体,并呈现火焰状放电(等离子体焰炬),达到10000K的高温,是一个

The plasma, and presents the flame shaped discharge (plasma torch), up to 10000K high temperature, is a

具有良好的蒸发-原子化-激发-电离性能的光谱光源。而且由于这种等离子

Spectral light source having good evaporation and atomization excitation ionization performance. And because of this plasma

体焰炬呈环状结构,有利于从等离子体中心通道进样并维持火焰的稳定;较低

The torch body is annular structure, is conducive to the sample from the center of plasma channel and maintain the stability of the flame is low;

的载气流速(低于1L/min)便可穿透ICP,使样品在中心通道停留时间达2~

The carrier gas flow rate (less than 1L/min) can penetrate the ICP, so that the sample in the center channel stay time of 2 ~.

3ms,可完全蒸发、原子化;ICP环状结构的中心通道的高温,高于任何火焰或

3MS, can be completely evaporated, atomization; ICP ring structure of the center channel of the high temperature, higher than any flame or

电弧火花的温度,是原子、离子的最佳激发温度,分析物在中心通道内被间接

The temperature of arc spark is the best excitation temperature of atoms and ions.

加热,对ICP放电性质影响小;ICP光源又是一种光薄的光源,自吸现象小,且

The ICP light source is a kind of light source with low self absorption, and it has little effect on the ICP discharge.

系无电极放电,无电极沾污。这些特点使ICP光源具有优异的分析性能,符合

Department of electrodeless discharge electrode, no contamination. These characteristics make ICP light source have excellent analytical performance.

于一个理想分析方法的要求。

The requirements of an ideal analysis method.

电感耦合等离子体光谱仪作为一种大型精密无机分析仪器,广泛应用于稀

Inductively coupled plasma spectrometer, as a kind of large-scale precision inorganic analytical instrument, is widely used in

土、贵金属、合金材料、电子产品、医药卫生、冶金、地质、石油、化工、商

Earth, precious metal, alloy materials, electronic products, medical and health, metallurgy, geology, petroleum, chemical industry, business

检、环保以及钕铁硼、硅、硅铁、钨、钼等行业分析检测,可对待测样品进行

Detection and analysis of inspection, environmental protection, NdFeB, ferrosilicon, silicon, tungsten and molybdenum industry, can the sample to be tested

定性或从超微量到常量的定量分析。是集光、机、电、计算机、分析技术于一

Qualitative or quantitative analysis of the quantity from the super trace to the constant. Is a collection of light, machine, electricity, computer, analysis technology in a

体的高新技术产品,具有测试速度快、测量范围宽、分析结果准确可靠等特

The high and new technology product of the body has the characteristics of high test speed, wide measuring range, accurate and reliable analysis results.

点。

Point.

电感耦合等离子体发射光谱仪光源的“点燃”,需具备持续稳定的高纯氩气

Inductively coupled plasma emission spectrometer light source, the need to have a stable and high purity argon

流,炬管、感应圈、高频发生器,冷却系统等条件。样品气溶胶被引入等离子

Flow, torch, induction coil, high frequency generator, condition of cooling system. Sample aerosol is introduced into the plasma

体源后,在6,000K~10,000K的高温下,发生去溶剂、蒸发、离解、激发、电

After the body source, in 6000K ~ 10000K high temperature, the occurrence of solvent, evaporation, dissociation, excitation, electricity

离、发射谱线。根据光路采光方向,可分为水平观察ICP源和垂直观察ICP源;

Emission spectral line. According to the direction of light road lighting, can be divided into horizontal observation ICP source and vertical observation ICP source;

双向观察ICP光源可实现垂直/水平双向观察。实际应用中宜根据样品基质、待

Bidirectional observation of ICP light source to achieve vertical / horizontal observation. In practical application, it is better to be based on sample matrix, to be

测元素、波长、灵敏度等因素选择合适的观察方式。

Measurement elements, wavelength, sensitivity and other factors to select the appropriate observation method.


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