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Atomic Emission Spectroscopy: Lab01:29

Atomic Emission Spectroscopy: Lab

652
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...
652
Atomic Emission Spectroscopy: Overview01:20

Atomic Emission Spectroscopy: Overview

3.7K
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...
3.7K
Atomic Emission Spectroscopy: Instrumentation01:22

Atomic Emission Spectroscopy: Instrumentation

1.3K
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.
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Atomic Emission Spectroscopy: Interference01:30

Atomic Emission Spectroscopy: Interference

658
In atomic emission spectroscopy (AES), high-temperature atomizers excite a broad range of elements and molecules that generate complex emissions from sources such as oxides, hydroxides, and flame combustion products in the flame or plasma. Several strategies can be employed to minimize spectral interferences caused by overlapping emission lines or bands. These include increasing instrument resolution, choosing alternative emission lines, optimally placing the detector in low-background regions,...
658
Atomic Spectroscopy: Absorption, Emission, and Fluorescence01:23

Atomic Spectroscopy: Absorption, Emission, and Fluorescence

2.8K
Atomic spectroscopy is a vital tool in elemental analysis, both qualitatively and quantitatively. It can be broadly divided into optical spectroscopy, mass spectroscopy, and X-ray spectroscopy methods. The optical spectroscopic methods are atomic absorption spectroscopy (AAS), atomic emission spectroscopy (AES), and atomic fluorescence spectroscopy (AFS). The first step in all three methods is atomization, where the solid, liquid, or solution-phase samples are converted into gas-phase atoms and...
2.8K
Inductively Coupled Plasma Atomic Emission Spectroscopy: Principle01:19

Inductively Coupled Plasma Atomic Emission Spectroscopy: Principle

1.9K
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...
1.9K

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Related Experiment Video

Updated: Feb 11, 2026

Force Spectroscopy of Single Protein Molecules Using an Atomic Force Microscope
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Force Spectroscopy of Single Protein Molecules Using an Atomic Force Microscope

Published on: February 28, 2019

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[Research on SCB discharge behavior with atomic emission spectroscopy].

Lin Zhang1, Hong-Yan Feng, Shun-Guan Zhu

  • 1School of Chemical Engineering, Nanjing University of Science & Technology, Nanjing 210094, China. l_njust@yahoo.com.cn

Guang Pu Xue Yu Guang Pu Fen Xi = Guang Pu
|January 28, 2010
PubMed
Summary

Semiconductor bridge (SCB) ignites energetic materials using low-energy thin film discharge. Atomic emission spectroscopy diagnosed SCB discharge, revealing temperature and electron density for optimized design.

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Area of Science:

  • Plasma physics
  • Materials science
  • Spectroscopy

Context:

  • Semiconductor bridge (SCB) technology offers a safe and controllable method for igniting energetic materials.
  • Characterizing the transient discharge behavior of SCBs is crucial for optimizing their performance and safety.
  • Atomic emission spectroscopy provides a powerful tool for diagnosing high-temperature, short-duration plasma events.

Purpose:

  • To diagnose the transient discharge behavior of semiconductor bridges (SCBs) used in igniting energetic materials.
  • To determine the temperature and electron density of SCB discharges using atomic emission spectroscopy.
  • To provide guidance for the design and optimization of SCB devices and their operating conditions.

Summary:

  • Semiconductor bridges (SCBs) were employed for igniting energetic materials via thin film discharge, demonstrating low input energy, high safety, and logic control.
  • Atomic emission spectroscopy diagnosed SCB discharges, measuring temperatures of 2,500–4,300 K and electron densities of 10^16 cm^-3 using copper and silicon spectral lines.
  • Simultaneous acquisition of temperature and electron density distributions over time allowed for the assessment of SCB discharge behaviors based on plasma spatial and temporal constraints.

Impact:

  • Establishes an efficient diagnostic technique for analyzing transient, small-scale discharge phenomena in SCBs.
  • Offers valuable insights for the improved design of SCB igniters and the optimization of discharge parameters.
  • Contributes to the advancement of energetic materials ignition technology through precise discharge characterization.