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Atomic Emission Spectroscopy: Instrumentation

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.

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Heteronuclear single-quantum correlation spectroscopy (HSQC) is a 2D NMR technique that reveals one-bond correlations between hydrogen and a heteronucleus. The HSQC experiment is similar to the heteronuclear correlation experiment (HETCOR) but is more sensitive. In the HSQC spectrum, the proton chemical shift is plotted on the horizontal F2 axis, while the 13C chemical shift is plotted on the vertical F1 axis. The corresponding proton and 13C spectra are also shown. The HSQC contour plot does...

π Electron Effects on Chemical Shift: Overview

π Electron Effects on Chemical Shift: Overview

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Related Experiment Video

Updated: Jun 22, 2026

High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy

High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy

Published on: June 28, 2016

Coherently-controlled two-dimensional photon echo electronic spectroscopy.

Valentyn I Prokhorenko¹, Alexei Halpin, R J D Miller

¹Departments of Chemistry and Physics, University of Toronto, Toronto, ON, Canada. prokh@lphys.chem.utoronto.ca

|June 10, 2009

Summary

This summary is machine-generated.

Coherent control of two-dimensional spectra is achieved using shaped excitation pulses in optical two-dimensional photon-echo spectroscopy. This technique reveals fine spectral structures and enables probing quantum decoherence and couplings.

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Generation and Coherent Control of Pulsed Quantum Frequency Combs

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

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Last Updated: Jun 22, 2026

High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy

High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy

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Generation and Coherent Control of Pulsed Quantum Frequency Combs

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

Area of Science:

Quantum optics
Spectroscopy
Physical chemistry

Background:

Two-dimensional photon-echo spectroscopy provides insights into molecular dynamics.
Coherent control offers advanced manipulation of spectroscopic signals.

Purpose of the Study:

To develop and demonstrate a coherently-controlled two-dimensional photon-echo spectrometer.
To investigate the impact of shaped excitation pulses on spectral features.

Main Methods:

Implementation of a four-beam interferometer with diffractive optics and two pulse shapers.
Utilizing heterodyne detection for high phase stability (Lambda/100).
Comparison of spectra obtained with shaped and unshaped excitation pulses.

Main Results:

Significant differences observed between spectra from shaped and unshaped pulses.
Appearance of fine structure in two-dimensional spectra using shaped pulses.
Demonstration of coherent control over spectral properties.

Conclusions:

Shaped excitation pulses enable precise control over two-dimensional photon-echo spectra.
This method enhances the ability to probe quantum decoherence and inter-state couplings.
The developed spectrometer offers high phase stability for detailed spectral analysis.