Related Experiment Video
Updated: Jun 17, 2026
05:00
Measuring Dissolved Methane in Aquatic Ecosystems Using An Optical Spectroscopy Gas Analyzer
Published on: July 26, 2024
[The general analytical methods for gases dissolved in liquids: sonoluminescence]
1School of Land Resource Engineering, Kunming University of Science & Technology, Kunming 650093, China.
Guang Pu Xue Yu Guang Pu Fen Xi = Guang Pu
|December 30, 2009
Summary
Analyzing dissolved gases in liquids like water is difficult. This review explores using sonoluminescence, a novel technique, for analyzing various gases beyond just oxygen.
Area of Science:
- Analytical Chemistry
- Physical Chemistry
Context:
- Analyzing dissolved gases in water and organic liquids presents significant challenges.
- Current methods are limited, primarily capable of quantifying only dissolved oxygen.
- Gases such as carbon dioxide (CO2), nitrogen (N2), and methane (CH4) remain difficult to analyze in liquids.
Purpose:
- To review the application of sonoluminescence for the analysis of dissolved gases in liquids.
- To highlight sonoluminescence as a potential method for gases beyond dissolved oxygen.
Summary:
- Sonoluminescence, the emission of light from imploding bubbles in a liquid, is explored as an analytical tool.
- This technique offers a potential pathway for detecting and quantifying various dissolved gases.
- The review covers the principles and applications of sonoluminescence in gas analysis.
Impact:
- Provides a comprehensive overview of sonoluminescence for gas analysis.
- Suggests a new instrumental approach for analyzing challenging dissolved gases.
- Opens avenues for further research and development in liquid-phase gas detection.
Related Concept Videos
01:14Photoluminescence: Applications
Photoluminescence offers a wide range of applications due to its inherent sensitivity and selectivity. This technique allows for both direct and indirect analyses of the analyte. Direct quantitative analysis is possible when the analyte exhibits a favorable quantum yield for fluorescence or phosphorescence. However, an indirect analysis may be feasible if the analyte is not fluorescent or phosphorescent, or if the quantum yield is unfavorable. Indirect methods include reacting the analyte with...
01:16Flame Photometry: Lab
In a flame photometer, when a solution like potassium chloride is aspirated into the flame, the solvent evaporates, leaving behind dehydrated salt. This salt dissociates into free gaseous atoms in their ground state. Some of these atoms absorb energy from the flame, leading to their excitation. The excited atoms return to the ground state, emitting photons at characteristic wavelengths. Because only electronic transitions are involved, the resulting emission lines are very narrow. The intensity...
01:02Flame 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...
01:31Gas Solubility
Gas solubility in liquids forms liquid-gas solutions, such as soft drinks, where carbon dioxide is dissolved in water, and the ocean, where the solubility of oxygen and carbon dioxide supports marine life. The ability of oceans to dissolve gases impacts weather conditions in the troposphere.However, gas-liquid interactions vary. For instance, hydrogen chloride gas is highly soluble in water, while oxygen's solubility is much lower. Because these solutions are non-ideal, Raoult’s law, which...
01:29Atomic Emission Spectroscopy: Lab
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...
01:10Volatilization
Volatilization gravimetry is an analytical technique that measures the mass lost due to the volatilization of the substance. This technique is used to estimate the amount of volatile material in a sample. To perform this method, heat a known amount of the sample to a high temperature in a crucible or other suitable vessel. The volatile substance in the sample evaporates, and the vapor is completely expelled from the crucible either by heating the sample or bubbling a stream of inert gas through...