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

Raman Spectroscopy: Overview01:20

Raman Spectroscopy: Overview

372
The underlying principle of Raman spectroscopy is based on the interaction between light and matter, specifically molecules' inelastic scattering of photons. When a monochromatic beam of light, typically from a laser source, interacts with a sample, most scattered light has the same frequency as the incident light. This is known as Rayleigh scattering.
However, a small fraction of the scattered light exhibits a frequency shift due to the exchange of energy between the incident photons and...
372
Raman Spectroscopy Instrumentation: Overview01:26

Raman Spectroscopy Instrumentation: Overview

332
A conventional Raman spectrophotometer includes a laser source, a sample holding system, a wavelength selector, and a detector.
The monochromatic laser source, typically using visible or near-infrared radiation, generates a highly focused beam of light. This light interacts with the molecules of the sample, scattering some of the light. Liquid and gaseous samples are usually tested in ordinary glass capillaries, while solids can be analyzed as powders packed in capillaries or as potassium...
332

You might also read

Related Articles

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

Sort by
Same author

Optimized Pretreatment for Raman-Based Nanoplastics Detection.

Analytical chemistry·2026
Same author

Artificial Raman Expert: Autonomous Spectroscopic Reasoning Driven by Localized Large Language Models.

ACS sensors·2026
Same author

Inhalable airborne microplastics in urban air: single-particle evidence of diurnal variability and physicochemical characteristics.

Environment international·2026
Same author

Do We Really Need Extra Signal-Enhancing Techniques for Nanoplastic Detection? The Mie-Resonance-Assisted Self-Nanolensing Effect Enables Routine Raman Analysis.

Analytical chemistry·2026
Same author

Unveiling nanoplastic release from single-use eyedrop vials: A particle-based approach for identification and quantification.

Ecotoxicology and environmental safety·2026
Same author

Locating the missing absorption enhancement due to multi‒core black carbon aerosols.

Nature communications·2025
Same journal

60 Years of Science on Contaminants of Emerging Concern in <i>ES&T</i>: From Serendipitous Discoveries to a More Systematic Understanding.

Environmental science & technology·2026
Same journal

Conversion of Gaseous Hg<sup>0</sup> Capture by CuS from Surface Adsorption to the Replacement Reaction through Intermittent Acid Washing.

Environmental science & technology·2026
Same journal

Industrial Condensable Particulate Matter: A Missing Source in PM<sub>2.5</sub> Source Apportionment Driving Winter Pollution in China.

Environmental science & technology·2026
Same journal

Correction to "Marine Scrubbers vs Low-Sulfur Fuels: A Comprehensive Well-To-Wake Life Cycle Assessment Supported by Measurements Aboard an Ocean-Going Vessel".

Environmental science & technology·2026
Same journal

Emissions and Cost Trade-Offs of Time-Matched Clean Electricity Procurement under Interannual Weather Variability: A Case Study of Hydrogen Production.

Environmental science & technology·2026
Same journal

Divergent Thermal Feedbacks of Urbanization and Greening Modulate the Urban Heat Island in 21st-Century China.

Environmental science & technology·2026
See all related articles

Related Experiment Video

Updated: Jun 27, 2025

Observation and Analysis of Blinking Surface-enhanced Raman Scattering
05:52

Observation and Analysis of Blinking Surface-enhanced Raman Scattering

Published on: January 11, 2018

7.4K

Direct Observation of Particle-To-Particle Variability in Ambient Aerosol pH Using a Novel Analytical Approach Based

Hanjin Yoo1,2, Dongkwon Seo1, Dongha Shin1

  • 1Department of Chemistry, Inha University, Incheon 22212, Republic of Korea.

Environmental Science & Technology
|April 26, 2024
PubMed
Summary
This summary is machine-generated.

Measuring the pH of individual atmospheric aerosol particles is now possible. This breakthrough reveals significant particle-to-particle pH variations, impacting climate and health.

Keywords:
aerosol pHambient aerosolsparticle-to-particle variabilitysingle-particle analysissurface-enhanced Raman spectroscopy

More Related Videos

A Filter-based Surface Enhanced Raman Spectroscopic Assay for Rapid Detection of Chemical Contaminants
08:13

A Filter-based Surface Enhanced Raman Spectroscopic Assay for Rapid Detection of Chemical Contaminants

Published on: February 19, 2016

9.4K
The Evolution of Silica Nanoparticle-polyester Coatings on Surfaces Exposed to Sunlight
10:27

The Evolution of Silica Nanoparticle-polyester Coatings on Surfaces Exposed to Sunlight

Published on: October 11, 2016

9.5K

Related Experiment Videos

Last Updated: Jun 27, 2025

Observation and Analysis of Blinking Surface-enhanced Raman Scattering
05:52

Observation and Analysis of Blinking Surface-enhanced Raman Scattering

Published on: January 11, 2018

7.4K
A Filter-based Surface Enhanced Raman Spectroscopic Assay for Rapid Detection of Chemical Contaminants
08:13

A Filter-based Surface Enhanced Raman Spectroscopic Assay for Rapid Detection of Chemical Contaminants

Published on: February 19, 2016

9.4K
The Evolution of Silica Nanoparticle-polyester Coatings on Surfaces Exposed to Sunlight
10:27

The Evolution of Silica Nanoparticle-polyester Coatings on Surfaces Exposed to Sunlight

Published on: October 11, 2016

9.5K

Area of Science:

  • Atmospheric Chemistry
  • Environmental Science
  • Analytical Chemistry

Background:

  • Aerosol pH is critical for climate, human health, and ecosystems.
  • Measuring individual aerosol particle pH has been a significant challenge.

Purpose of the Study:

  • To develop a novel technique for assessing individual ambient PM2.5-10 aerosol particle pH.
  • To investigate the relationship between aerosol pH and particle characteristics like hygroscopic behavior and morphology.

Main Methods:

  • Utilized surface-enhanced Raman spectroscopy (SERS) for single-particle pH analysis.
  • Examined hygroscopic behavior, morphology, and elemental composition alongside pH.

Main Results:

  • Demonstrated a substantial particle-to-particle pH variability, ranging from 3.3 to 5.7.
  • Observed that pH variations are linked to individual particle reaction and aging states.
  • Highlighted diverse reactivities and properties among co-existing aerosol particles.

Conclusions:

  • Pioneering technique enables detailed study of aerosol pH variability.
  • Findings advance understanding of atmospheric chemistry and environmental impacts.
  • Opens avenues for research on size-dependent and spatio-temporal pH variations.