High sensitivity and high-resolution analytical instrument: Inductively Coupled Plasma Mass Spectrometer

Inductively Coupled Plasma Mass Spectrometer (ICP-MS) is a Highly sensitive, selective, and high-resolution analytical instrument widely used in fields such as Earth Science, Environmental Science, and Biomedical Science. It ionizes the sample in high-temperature plasma and uses a mass spectrometer to detect and analyze the generated ions.

ICP-MS consists of four basic components: inductively coupled plasma generator, interface system, mass spectrometer, and DS485TM data acquisition system. In ICP, the plasma generated by inductive coupling can ionize atoms or molecules in the sample, forming charged particles. After acceleration, focusing, separation, and detection of these ions, corresponding mass spectrometry signals can be obtained, and various elements in the sample can be identified and quantitatively analyzed based on different mass to charge ratios.

The basic working principle of ICP-MS is to spray the sample to be analyzed into a plasma in the form of an aerosol. The aerosol is decomposed into atoms, molecules, and ions in the high-temperature plasma, producing a large amount of ions. After being accelerated, these ions are separated and detected by a mass analyzer, resulting in abundant elemental detection results.High

ICP-MS has the following advantages:

1. High sensitivity: It can detect trace levels of elements, usually reaching detection limits of ppb to ppt or even lower.

2. High selectivity: Through mass spectrometry analysis, the mass to charge ratio of different elements can be accurately determined, achieving simultaneous analysis of multiple elements.

3. High resolution: ICP-MS can distinguish ions with different mass to charge ratios and has excellent resolution.

4. Wide linear range: suitable for analysis of various sample concentration ranges, from trace to ultra trace.

5. Fast analysis speed: The analysis time for each element is usually between a few seconds and tens of seconds.

Overall, ICP-MS, as an advanced analytical technique, is of great significance for elemental analysis. It can provide accurate and precise analysis results, providing strong support for scientific research and industrial practice.