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Related Concept Videos

Atomic Emission Spectroscopy: Lab01:29

Atomic Emission Spectroscopy: Lab

AES is a powerful analytical technique, especially effective when used with plasma sources, producing abundant spectra in characteristic emission lines. The Inductively Coupled Plasma (ICP), in particular, yields superior quantitative analytical data due to its high stability, low noise, low background, and minimal interferences under optimal experimental conditions. However, newer air-operated microwave sources are emerging as promising alternatives that could be more cost-effective than...
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.
Atomic Absorption Spectroscopy: Interference01:25

Atomic Absorption Spectroscopy: Interference

Interference leads to systematic error in atomic absorption (AA) measurements by enhancing or diminishing the analytical signal or the background. These interferences can be grouped into three main categories: spectral interference, chemical interference, and physical interference.
Spectral interference occurs when signals from other elements or molecules overlap with the analyte signal, falsely elevating or masking the analyte's absorbance. This interference can be corrected using Zeeman,...
Atomic Absorption Spectroscopy: Lab01:21

Atomic Absorption Spectroscopy: Lab

For AAS measurements, samples must be introduced as clear solutions, often requiring extensive preliminary treatment to dissolve materials like soils, animal tissues, and minerals. Common methods for sample preparation include treatment with hot mineral acids, wet ashing, combustion in closed containers, high-temperature ashing, or fusion with reagents.
 Solutions containing organic solvents, such as low-molecular-mass alcohols, esters, or ketones, enhance absorbances by increasing nebulizer...
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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Applying X-ray Imaging Crystal Spectroscopy for Use as a High Temperature Plasma Diagnostic
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Abel inversion applied to plasma spectroscopy: a new interactive method.

J Glasser, J Chapelle, J C Boettner

    Applied Optics
    |March 9, 2010
    PubMed
    Summary
    This summary is machine-generated.

    A novel Abel inversion method uses controlled spline smoothing for experimental data. This technique improves accuracy for test functions, outperforming previous approaches with or without scattering.

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    Area of Science:

    • Data analysis
    • Computational physics
    • Applied mathematics

    Background:

    • Abel inversion is crucial for analyzing radially symmetric data.
    • Experimental data often requires smoothing due to noise and scattering.
    • Existing Abel inversion methods can be sensitive to data imperfections.

    Purpose of the Study:

    • To introduce a new, robust Abel inversion method.
    • To implement a controlled smoothing procedure using spline functions.
    • To evaluate the method's performance on test functions.

    Main Methods:

    • Developed a new algorithm for Abel inversion.
    • Employed spline functions for controlled data smoothing.
    • Tested the method on benchmark functions with and without scattering effects.

    Main Results:

    • The new Abel inversion method demonstrates improved accuracy.
    • Spline smoothing effectively handles experimental data noise and scattering.
    • Achieved superior results compared to previous methods on test functions.

    Conclusions:

    • The proposed Abel inversion technique with spline smoothing is effective.
    • This method offers a more reliable approach for analyzing experimental data.
    • The findings are applicable to various scientific fields requiring Abel inversion.