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Atomic Emission Spectroscopy: Interference

Atomic Emission Spectroscopy: Interference

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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Attenuated Total Reflectance (ATR) Infrared Spectroscopy: Overview

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Attenuated total reflectance (ATR) infrared spectroscopy is a powerful analytical technique used to study the composition of materials. It is widely employed in chemistry, materials science, forensic science, and other fields where sample characterization is required. ATR has several advantages over traditional transmission IR spectroscopy, including the requirement of little to no sample preparation and the ability to analyze a wide range of samples.
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Related Experiment Video

Updated: Jul 7, 2026

Scattering And Absorption of Light in Planetary Regoliths

Scattering And Absorption of Light in Planetary Regoliths

Published on: July 1, 2019

Atmospheric winds from occultation spectra.

¹Ohio State University, Physics Department, Columbus, Ohio 43210, USA.

|August 1, 1985

Summary

Scientists can measure relative wind speeds up to 100 km using solar occultation spectra. Precise measurements of wind speed require accurate line positions or gas sample calibration.

Area of Science:

Atmospheric science
Spectroscopy
Remote sensing

Background:

Accurate wind speed measurements are crucial for atmospheric modeling.
Satellite-based remote sensing offers a unique perspective for atmospheric profiling.

Purpose of the Study:

To determine relative wind speeds using solar occultation spectra.
To assess the precision of wind speed measurements at high altitudes.

Main Methods:

Analyzing spectral line shifts in solar occultation data.
Utilizing satellite-obtained spectra for atmospheric analysis.

Main Results:

Achieved precisions of 5 m/sec or better for relative wind speeds.
Successfully measured winds at altitudes up to 100 km.

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Conclusions:

Solar occultation spectroscopy is a viable method for measuring high-altitude winds.
Accurate line positions or calibration are needed for absolute wind speed determination.