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Flame Photometry: Overview

Flame Photometry: Overview

Flame photometry, also known as flame emission spectrometry, is a technique used for the qualitative and quantitative analysis of elements present in a sample using a flame as the source of excitation energy. The concept of flame photometry was realized in the early 1860s by Kirchhoff and Bunsen, who discovered that specific elements emit characteristic radiation when excited in flames. The first instrument developed for this purpose was used to measure sodium (Na) in plant ash using a Bunsen...

Gas Chromatography: Types of Detectors-II

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In gas chromatography, different detectors are employed to meet specific analytical needs. These detectors are often categorized based on their detection mechanisms and the types of compounds they are best suited to analyze. Thermal Conductivity Detectors (TCD), Flame Ionization Detectors (FID), and Electron Capture Detectors (ECD) represent common categories, each with unique operating principles and applications. However, beyond these, several other detectors are designed for more specialized...

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Related Experiment Video

Updated: Jun 16, 2026

Combustion Chemistry of Fuels: Quantitative Speciation Data Obtained from an Atmospheric High-temperature Flow Reactor with Coupled Molecular-beam Mass Spectrometer

Combustion Chemistry of Fuels: Quantitative Speciation Data Obtained from an Atmospheric High-temperature Flow Reactor with Coupled Molecular-beam Mass Spectrometer

Published on: February 19, 2018

Passive optical diagnostics of combustion flows.

|February 20, 2010

Summary

This study introduces a passive infrared (IR) detection method to simultaneously measure temperature and species concentrations in various media. The technique uses radiative transfer equations and advanced inversion methods for accurate thermodynamic variable determination.

Area of Science:

Thermodynamics
Spectroscopy
Radiative Transfer

Background:

Accurate determination of temperature and species concentration is crucial in various scientific and industrial applications.
Existing methods often struggle with simultaneous measurements in complex or non-homogeneous environments.

Purpose of the Study:

To develop a passive infrared (IR) detection method for simultaneous temperature and species concentration determination.
To address challenges in probing both homogeneous and non-homogeneous media.

Main Methods:

Utilizing the monochromatic radiative transfer equation for IR detection.
Applying a ratio technique for homogeneous media analysis.
Developing a generalized Abel inversion method with multifrequency, multiangle scanning for non-homogeneous 2-D distributions.

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Infrared Degenerate Four-wave Mixing with Upconversion Detection for Quantitative Gas Sensing

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Published on: March 22, 2019

Combustion Characterization and Model Fuel Development for Micro-tubular Flame-assisted Fuel Cells

Combustion Characterization and Model Fuel Development for Micro-tubular Flame-assisted Fuel Cells

Published on: October 2, 2016

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Last Updated: Jun 16, 2026

Combustion Chemistry of Fuels: Quantitative Speciation Data Obtained from an Atmospheric High-temperature Flow Reactor with Coupled Molecular-beam Mass Spectrometer

Combustion Chemistry of Fuels: Quantitative Speciation Data Obtained from an Atmospheric High-temperature Flow Reactor with Coupled Molecular-beam Mass Spectrometer

Published on: February 19, 2018

Infrared Degenerate Four-wave Mixing with Upconversion Detection for Quantitative Gas Sensing

Infrared Degenerate Four-wave Mixing with Upconversion Detection for Quantitative Gas Sensing

Published on: March 22, 2019

Combustion Characterization and Model Fuel Development for Micro-tubular Flame-assisted Fuel Cells

Combustion Characterization and Model Fuel Development for Micro-tubular Flame-assisted Fuel Cells

Published on: October 2, 2016

Main Results:

Successfully demonstrated a method for simultaneous determination of thermodynamic variables (temperature, species concentrations).
Developed solutions for both homogeneous and non-homogeneous media, including 2-D distributions.
Addressed special cases involving axisymmetric and asymmetric parameter distributions.

Conclusions:

The proposed passive IR detection method offers a robust approach for simultaneous temperature and species concentration retrieval.
The developed techniques are applicable to a range of media, enhancing diagnostic capabilities in complex systems.