Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Residual aqueous ozone determination by gas diffusion reverse flow injection analysis.

M Baeza1, J Alonso, J Bartrolí

  • 1Departament de Química, Grup de Sensors i Biosensors, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain. mbaeza@eupma.uab.es

Analytical and Bioanalytical Chemistry
|April 19, 2005
PubMed
Summary

A new gaseous diffusion-reverse flow injection analysis (GD-r-FIA) system enables indirect ozone measurement by monitoring nitrite depletion. This method offers a broad linear range suitable for continuous ozone monitoring with reduced chemical use.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Evaluation of a PET Insert for Trimodal Imaging: A Step Toward PET/MRI-Guided Focused Ultrasound.

IEEE transactions on radiation and plasma medical sciences·2026
Same author

Analysis of the Influence of Sex in 507 Patients With Moderate-to-Severe Atopic Dermatitis: Spanish Atopic Dermatitis Registry (BIOBADATOP).

Actas dermo-sifiliograficas·2026
Same author

Health Care Resource Utilization in Patients With Atopic Dermatitis According to Treatment Response: Evidence From the BIOBADATOP Registry.

Actas dermo-sifiliograficas·2026
Same author

Fast and accurate visual acuity prediction based on optical aberrations and machine learning.

Scientific reports·2025
Same author

Synthetic MRI in Progressive MS: Associations with Disability.

AJNR. American journal of neuroradiology·2025
Same author

Soil properties determine the impact of nZVI on Lactuca sativa L and its rhizosphere.

Environmental pollution (Barking, Essex : 1987)·2023

Area of Science:

  • Environmental Chemistry
  • Analytical Chemistry
  • Sensor Technology

Background:

  • Accurate ozone monitoring is crucial for environmental and health assessments.
  • Existing methods for ozone analysis can be limited in their linear range or require significant chemical consumption.
  • Gaseous diffusion coupled with flow injection analysis offers a potential pathway for sensitive and efficient chemical sensing.

Purpose of the Study:

  • To develop and optimize a novel gaseous diffusion-reverse flow injection analysis (GD-r-FIA) system for indirect ozone determination.
  • To evaluate the system's performance, including sensitivity, detection limit, linearity, and repeatability.
  • To assess the suitability of the GD-r-FIA system for continuous ozone monitoring applications.

Main Methods:

Related Experiment Videos

  • Ozone was diffused through a polyvinylidene difluoride (PVDF) membrane into a nitrite-containing acceptor stream.
  • The decrease in nitrite concentration was measured indirectly using the Griess-Ilosvay reaction.
  • The system was optimized by adjusting nitrite concentration and flow rate, with a focus on diffusion efficiency.

    • Main Results:

    • The optimized GD-r-FIA system achieved an optimal nitrite concentration of 0.250 ppm at a flow rate of 1.5 ml/min.
    • Ozone diffusion efficiency through the membrane was 4.4%, resulting in a sensitivity of 0.0092±0.0012 AU/ppm and a detection limit of 0.03 ppm.
    • The system demonstrated a significantly broader linear range (one order of magnitude wider) compared to other GD-FIA systems, ideal for continuous monitoring (0.05-5.0 ppm).

    Conclusions:

    • The developed GD-r-FIA system provides a viable method for indirect ozone analysis with a broad linear range, advantageous for continuous monitoring.
    • The reverse flow injection analysis approach minimizes chemical consumption and waste generation.
    • The method exhibits good stability, repeatability, and reproducibility, making it a practical analytical tool.