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Cell Biology JoVE (Open Access) Citable · DOI

Extraction and Characterization of Surfactants from Atmospheric Aerosols

DOI: 10.3791/55622-v
What you'll learn
  • ✓ Extract surfactants from atmospheric aerosol samples using targeted methods
  • ✓ Determine absolute surfactant concentrations in aerosol phases
  • ✓ Measure surface tension curves and Critical Micelle Concentration (CMC) in aqueous solutions
Protocol

Methods are presented for the targeted extraction of surfactants present in atmospheric aerosols and the determination of their absolute concentrations and surface tension curves in water, including their Critical Micelle Concentration (CMC).

Difficulty
advanced
Total time
~4–8 hours per sample set (extraction, concentration analysis, and surface tension characterization)

Steps

1
Extract surfactants from aerosol samples

Perform targeted extraction of surfactants present in atmospheric aerosol samples using established chemical extraction protocols. This step isolates surfactant compounds for subsequent analysis.

▶ 01:13
2
Determine surfactant aerosol-phase concentrations

Quantify the absolute concentrations of extracted surfactants in the aerosol phase using analytical methods. This provides baseline data on surfactant abundance in samples.

▶ 03:41
3
Measure surface tension and Critical Micelle Concentration

Generate surface tension curves for surfactants in water and determine their Critical Micelle Concentration (CMC). This characterizes the interfacial and aggregation properties of the extracted surfactants.

▶ 06:05
4
Analyze results from fine aerosol characterization

Examine and interpret characterization data obtained from fine aerosol surfactant samples, including concentration profiles and surface tension behavior.

▶ 07:16
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