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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...
Atomic Emission Spectroscopy: Overview01:20

Atomic Emission Spectroscopy: Overview

Atomic emission spectroscopy (AES) is an analytical technique used to determine the elemental composition of a sample by analyzing the light emitted from excited atoms. In AES, atoms in a sample are excited to higher energy levels by thermal energy from high-temperature sources, such as plasma, arcs, or sparks. When these excited atoms return to lower energy states, they emit light at specific wavelengths characteristic of each element. The resulting atomic emission spectrum, which consists of...
Atomic Absorption Spectroscopy: Overview01:27

Atomic Absorption Spectroscopy: Overview

Atomic absorption spectroscopy (AAS) is a technique used to analyze elements by measuring electromagnetic radiation (EMR) absorbed by atoms, which causes them to transition to a higher-energy orbit. The most crucial step in AAS is atomization, where the analyte is converted into gas-phase atoms, typically through a flame or furnace. Some of these atoms become thermally excited in the flame, while most remain in the ground state.
When irradiated by EMR of a particular wavelength, these...
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 Emission Spectroscopy: Instrumentation01:22

Atomic Emission Spectroscopy: Instrumentation

The instrumentation of atomic emission spectrometry (AES) involves various components, including atomization devices that convert samples into gas-phase atoms and ions. There are two main types of atomization devices: continuous and discrete atomizers.  Continuous atomizers, like plasmas and flames, introduce samples in a constant stream, while discrete atomizers inject individual samples using syringes or autosamplers. The most common discrete atomizer is the electrothermal atomizer.
Atomic Absorption Spectroscopy: Radiation and Light Sources01:13

Atomic Absorption Spectroscopy: Radiation and Light Sources

Atomic absorption spectroscopy (AAS) relies on the Beer-Lambert law, which requires that the radiation source emits a narrow range of wavelengths to match the absorption characteristics of the analyte atom. The primary criteria for choosing an appropriate radiation source in AAS is to provide a precise and intense emission at specific wavelengths that will allow accurate detection of the analyte.
Two common narrow-range 'line' sources used in AAS are hollow-cathode lamps (HCLs) and...

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Related Experiment Video

Updated: May 9, 2026

Quantitative Analysis of Vacuum Induction Melting by Laser-induced Breakdown Spectroscopy
03:49

Quantitative Analysis of Vacuum Induction Melting by Laser-induced Breakdown Spectroscopy

Published on: June 10, 2019

Improved algorithm for elemental analysis by laser-induced breakdown spectroscopy.

Prashant Kumar1, K P Subramanian, Ajai Kumar

  • 1Physical Research Laboratory, Navrangpura, Ahmedabad 380009, India.

Applied Optics
|July 23, 2013
PubMed
Summary
This summary is machine-generated.

A new calibration-free algorithm for elemental concentration analysis using laser-induced breakdown spectroscopy (LIBS) simplifies analysis. This method accurately determines material composition with minimal parameters, validated on brass samples.

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Measurement and Analysis of Atomic Hydrogen and Diatomic Molecular AlO, C2, CN, and TiO Spectra Following Laser-induced Optical Breakdown
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Measurement and Analysis of Atomic Hydrogen and Diatomic Molecular AlO, C2, CN, and TiO Spectra Following Laser-induced Optical Breakdown

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Quantitative Analysis of Vacuum Induction Melting by Laser-induced Breakdown Spectroscopy
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Measurement and Analysis of Atomic Hydrogen and Diatomic Molecular AlO, C2, CN, and TiO Spectra Following Laser-induced Optical Breakdown
09:40

Measurement and Analysis of Atomic Hydrogen and Diatomic Molecular AlO, C2, CN, and TiO Spectra Following Laser-induced Optical Breakdown

Published on: February 14, 2014

Area of Science:

  • Analytical Chemistry
  • Materials Science
  • Spectroscopy

Background:

  • Elemental concentration analysis is crucial in materials science.
  • Traditional methods like laser-induced breakdown spectroscopy (LIBS) often require extensive calibration.
  • Developing calibration-free LIBS methods can significantly streamline elemental analysis.

Purpose of the Study:

  • To introduce a novel, calibration-free algorithm for elemental concentration retrieval using LIBS.
  • To present a simplified and improved ratio-based algorithm requiring only one trial parameter.
  • To validate the algorithm's efficacy in determining the composition of materials.

Main Methods:

  • Development of a simplified, calibration-free algorithm for LIBS data analysis.
  • Utilizing a single trial parameter to estimate multiple elemental concentrations.
  • Application of the algorithm to determine the elemental composition of a brass sample.

Main Results:

  • The proposed algorithm successfully retrieves elemental concentrations without prior calibration.
  • The method demonstrates improved simplicity compared to existing ratio-based algorithms.
  • Analysis of a brass sample showed results agreeing within 1% with electron probe microanalyzer (EPMA) measurements.

Conclusions:

  • The developed calibration-free LIBS algorithm offers a simplified and accurate approach to elemental analysis.
  • This method reduces the need for extensive calibration, making elemental concentration retrieval more efficient.
  • The algorithm's high accuracy, validated against EPMA, suggests its broad applicability in materials characterization.