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 Concept Videos

UV–Vis Spectrometers01:14

UV–Vis Spectrometers

3.2K
The absorbance of UV and visible (UV–visible) radiations is measured using a UV–visible spectrophotometer. Deuterium lamps, which emit UV radiation, and tungsten lamps, which produce radiation in the visible region, are used as light sources in UV–visible spectrophotometers. A monochromator or prism is used for diffraction grating, i.e., to split the incoming radiation into different wavelengths. A system of slits is used to focus the desired wavelength on the sample cell.
3.2K
Gas Chromatography: Types of Detectors-II01:19

Gas Chromatography: Types of Detectors-II

1.0K
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...
1.0K
UV–Vis Spectroscopy: Woodward–Fieser Rules01:29

UV–Vis Spectroscopy: Woodward–Fieser Rules

27.9K
UV–Visible absorption spectra of conjugated dienes arise from the lowest energy π → π* transitions. The light-absorbing part of the molecule is called the chromophore, and the substituents directly attached to the chromophore are called auxochromes. A strong correlation exists between the absorption maxima, λmax, and the structure of a conjugated π system. The Woodward–Fieser rules predict the value of λmax for a given structure by adding the...
27.9K

You might also read

Related Articles

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

Sort by
Same author

Microstructured substrate based on in situ growth of silver particles for copper determination in liquid samples by LIBS.

Talanta·2026
Same author

Bacterial Cellulose-Derived Biochar for Electrochemically Assisted Fenton Degradation of Methylene Blue.

ACS omega·2025
Same author

Preparation of TEMPO-Oxidized Cellulose Hydrogels Modified with β-Cyclodextrin and κ-Carrageenan for Potential Adsorption Applications.

ACS omega·2025
Same author

A surface-enhanced infrared absorption spectroscopy (SEIRA) multivariate approach for atrazine detection.

Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy·2024
Same author

Underwater determination of calcium and strontium ions in oilfield produced water by laser-induced breakdown spectroscopy (LIBS).

Analytical methods : advancing methods and applications·2023
Same author

A fluorescent magnetic core-shell nanosensor for detection of copper ions in natural waters.

Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy·2023

Related Experiment Video

Updated: Jan 2, 2026

A Sensitive Visual Method for the Detection of Hydrogen Sulfide Producing Bacteria
03:55

A Sensitive Visual Method for the Detection of Hydrogen Sulfide Producing Bacteria

Published on: June 27, 2022

4.1K

Optical sensor for sulfur dioxide determination in wines.

Karime R B Silva1, Ivo M Raimundo, Iara F Gimenez

  • 1Instituto de Química, UNICAMP, Caixa Postal 6154, 13084-971 Campinas, Brazil.

Journal of Agricultural and Food Chemistry
|November 9, 2006
PubMed
Summary

This study introduces a novel optical sensor method for accurately measuring free and total sulfur dioxide (SO2) in wines. The developed sensor offers reliable and repeatable results, comparable to traditional methods.

More Related Videos

A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response
09:03

A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response

Published on: January 7, 2019

7.6K
Measurement of H2S in Crude Oil and Crude Oil Headspace Using Multidimensional Gas Chromatography, Deans Switching and Sulfur-selective Detection
08:37

Measurement of H2S in Crude Oil and Crude Oil Headspace Using Multidimensional Gas Chromatography, Deans Switching and Sulfur-selective Detection

Published on: December 10, 2015

19.8K

Related Experiment Videos

Last Updated: Jan 2, 2026

A Sensitive Visual Method for the Detection of Hydrogen Sulfide Producing Bacteria
03:55

A Sensitive Visual Method for the Detection of Hydrogen Sulfide Producing Bacteria

Published on: June 27, 2022

4.1K
A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response
09:03

A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response

Published on: January 7, 2019

7.6K
Measurement of H2S in Crude Oil and Crude Oil Headspace Using Multidimensional Gas Chromatography, Deans Switching and Sulfur-selective Detection
08:37

Measurement of H2S in Crude Oil and Crude Oil Headspace Using Multidimensional Gas Chromatography, Deans Switching and Sulfur-selective Detection

Published on: December 10, 2015

19.8K

Area of Science:

  • Analytical Chemistry
  • Sensor Technology
  • Wine Chemistry

Background:

  • Sulfur dioxide (SO2) is crucial for wine preservation, acting as an antioxidant and antimicrobial agent.
  • Accurate determination of both free and total SO2 is essential for wine quality control and regulatory compliance.
  • Existing methods for SO2 determination can be time-consuming or require specific laboratory equipment.

Purpose of the Study:

  • To develop and validate a novel optical sensor method for the determination of free and total sulfur dioxide in wines.
  • To evaluate the performance characteristics of the developed sensor, including linearity, detection limits, and repeatability.
  • To compare the results obtained with the new optical sensor method against a standard reference method (Ripper method).

Main Methods:

  • An optical sensor utilizing a dichlorobis(diphenylphosphino)methane dipalladium I complex [Pd(2)(dppm)(2)Cl(2)] immobilized in a PVC membrane was employed.
  • Reflectance measurements were performed at 550 nm using a bifurcated optical fiber bundle.
  • The method involved specific reagent additions and nitrogen bubbling for the selective determination of free and total SO2 in wine samples.

Main Results:

  • Linear responses were achieved for free SO2 up to 50 mg L(-1) and total SO2 up to 150 mg L(-1).
  • Low detection limits were reported: 0.37 mg L(-1) for free SO2 and 0.70 mg L(-1) for total SO2.
  • The method demonstrated good repeatability with relative standard deviation values of 2.2% for free SO2 and 2.5% for total SO2.
  • The sensing membrane exhibited durability, lasting for up to 250 measurements.
  • Results showed no significant difference compared to the Ripper reference method at a 95% confidence level.

Conclusions:

  • The developed optical sensor method provides a reliable and accurate means for determining free and total sulfur dioxide in wines.
  • The sensor offers advantages in terms of sensitivity, repeatability, and potential for long-term use.
  • This method presents a viable alternative to conventional techniques for SO2 analysis in the wine industry.