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Related Concept Videos

Inductively Coupled Plasma Atomic Emission Spectroscopy: Principle01:19

Inductively Coupled Plasma Atomic Emission Spectroscopy: Principle

Inductively coupled plasma (ICP) is the most widely used plasma source in atomic emission spectroscopy (AES), also known as Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES). The ICP source, or torch, consists of three concentric quartz tubes with argon gas flowing through them. A spark from a Tesla coil initiates the ionization of argon, generating a high-temperature plasma.
The ions and electrons produced interact with the fluctuating magnetic field created by a water-cooled...
Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation01:26

Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation

Inductively coupled plasma (ICP) is the common plasma source used in atomic emission spectroscopy (AES), a technique that detects and analyzes various elements in a sample. This method is often called inductively coupled plasma atomic emission spectroscopy (ICP-AES).
There are three main types of inductively coupled plasma atomic emission spectroscopy  (ICP-AES) instruments: sequential, simultaneous multichannel, and Fourier transform instruments, with the latter being less commonly used.
Inductively Coupled Plasma–Mass Spectrometry (ICP–MS): Overview01:19

Inductively Coupled Plasma–Mass Spectrometry (ICP–MS): Overview

In inductively coupled plasma–mass spectrometry (ICP–MS), an inductively coupled plasma (ICP) torch is used as an atomizer and ionizer. Solid samples are dissolved and volatilized before being introduced into the high-temperature argon plasma, while solution samples are nebulized and passed through the high-temperature argon plasma. Plasma dissociates the analytes and ionizes their component atoms to form a mixture of positive ions and molecular species. The positive ions are then passed on to...

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Related Experiment Video

Updated: Jun 13, 2026

Non-equilibrium Microwave Plasma for Efficient High Temperature Chemistry
07:17

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Published on: August 1, 2017

Large cross-section pulsed TEA-CO(2) interferometer for plasma diagnostics.

J L Lachambre, R Decoste, A Robert

    Applied Optics
    |April 17, 2010
    PubMed
    Summary
    This summary is machine-generated.

    A Mach-Zehnder interferometer measures plasma density with high sensitivity and spatial resolution. This technique allows detailed visualization of plasma column features using a CO(2) laser.

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    Area of Science:

    • Plasma Physics
    • Optical Diagnostics
    • Interferometry

    Background:

    • Accurate measurement of plasma density is crucial for understanding plasma behavior.
    • Traditional diagnostic methods may lack the required spatial resolution or sensitivity.
    • Mach-Zehnder interferometry offers a non-intrusive optical approach for plasma characterization.

    Purpose of the Study:

    • To demonstrate a large cross-section Mach-Zehnder interferometer for plasma density measurements.
    • To achieve high line-integrated density sensitivity and spatial resolution.
    • To visualize and quantify density profiles in plasma columns.

    Main Methods:

    • Utilized a Mach-Zehnder interferometer illuminated by a 30-nsec CO(2) laser pulse.
    • Achieved a line-integrated density sensitivity of 2 x 10(19) m(-2).
    • Identified spatial features down to 150 microm within a 50 mm field of view.

    Main Results:

    • Successfully obtained interference patterns from a plasma column.
    • Demonstrated the capability to resolve fine spatial features within the plasma.
    • Presented Abel deconvoluted density profiles corresponding to the interference patterns.

    Conclusions:

    • The developed Mach-Zehnder interferometer system is effective for high-sensitivity plasma density diagnostics.
    • The technique provides excellent spatial resolution for characterizing plasma structures.
    • This method enables detailed analysis of plasma column density distributions.