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Related Concept Videos

Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation01:26

Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation

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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....
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Atomic Emission Spectroscopy: Overview01:20

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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...
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Atomic Emission Spectroscopy: Instrumentation01:22

Atomic Emission Spectroscopy: Instrumentation

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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: Lab01:29

Atomic Emission Spectroscopy: Lab

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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...
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Raman Spectroscopy Instrumentation: Overview01:26

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A conventional Raman spectrophotometer includes a laser source, a sample holding system, a wavelength selector, and a detector.
The monochromatic laser source, typically using visible or near-infrared radiation, generates a highly focused beam of light. This light interacts with the molecules of the sample, scattering some of the light. Liquid and gaseous samples are usually tested in ordinary glass capillaries, while solids can be analyzed as powders packed in capillaries or as potassium...
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Atomic Emission Spectroscopy: Interference01:30

Atomic Emission Spectroscopy: Interference

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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,...
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Towards fully optimised and automated ESR spectroscopy.

Jean-Baptiste Verstraete1, Jonathan R J Yong1, David L Goodwin1

  • 1Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA, UK. mohammadali.foroozandeh@chem.ox.ac.uk.

Chemical Communications (Cambridge, England)
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Summary

ESR-POISE is a new software package that automates electron spin resonance (ESR) experiments, reducing setup time and improving accuracy. This user-friendly tool enhances experimental efficiency for scientists.

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Area of Science:

  • Spectroscopy
  • Analytical Chemistry
  • Physical Chemistry

Background:

  • Electron spin resonance (ESR) experiments often face challenges with instrumental imperfections.
  • Manual setup and optimization of ESR experiments can be time-consuming and prone to errors.

Purpose of the Study:

  • To develop a user-friendly software package for automated electron spin resonance (ESR) experiments.
  • To overcome limitations of instrumental imperfection and lengthy experimental setup in ESR.

Main Methods:

  • Developed ESR-POISE, an open-source software package.
  • Integrated ESR-POISE with Bruker's Xepr software for seamless operation.
  • Implemented automated, on-the-fly optimization and acquisition protocols for ESR experiments.

Main Results:

  • ESR-POISE enables fully automated and fast optimization of ESR experiments.
  • The software allows scientists to perform user-defined optimizations efficiently.
  • Addresses instrumental imperfections and reduces experimental setup time.

Conclusions:

  • ESR-POISE offers a significant advancement in the automation of ESR spectroscopy.
  • The software enhances experimental efficiency and accuracy, making it a valuable tool for researchers.
  • Facilitates advanced ESR studies through user-defined optimization capabilities.