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

The Electromagnetic Spectrum02:37

The Electromagnetic Spectrum

64.9K
The electromagnetic spectrum consists of all the types of electromagnetic radiation arranged according to their frequency and wavelength. Each of the various colors of visible light has specific frequencies and wavelengths associated with them, and you can see that visible light makes up only a small portion of the electromagnetic spectrum. Because the technologies developed to work in various parts of the electromagnetic spectrum are different, for reasons of convenience and historical...
64.9K
The Electromagnetic Spectrum01:24

The Electromagnetic Spectrum

33.4K
Electromagnetic waves are categorized according to their wavelengths and frequencies, giving the electromagnetic spectrum. These waves are classified as radio, infrared, ultraviolet, etc. Radio waves refer to electromagnetic radiation with wavelengths ranging from millimeters to kilometers. Radio waves are commonly used for audio communications (i.e., radios) and typically result from an alternating current in the wires of a broadcast antenna. They cover a broad wavelength range and are used...
33.4K
IR Spectrum01:19

IR Spectrum

2.0K
When infrared (IR) radiation passes through a molecule, the bonds stretch or bend by absorbing the radiation. This absorption creates the molecule's absorption spectrum, which is the plot of its percentage transmittance versus wavenumber.
Transmittance is defined as the ratio of the radiant power passing through a sample to that from the radiation's source. Multiplying the transmittance by 100 gives the percent transmittance (%T), which varies between 100% (no absorption) and 0%...
2.0K
Mass Spectrum01:23

Mass Spectrum

4.1K
A mass spectrum is the graphical representation of the relative abundance of the charged fragments in an analyte plotted against their mass-to-charge ratio (m/z). The plot's x-axis represents the ratio of the mass of the charged fragment to the number of charges it carries. The y axis of the plot represents the relative abundance of each charged species. The relative abundance is calculated from the signal intensity of each charged species recorded at the detector. The most intense signal (the...
4.1K
UV–Vis Spectrum01:30

UV–Vis Spectrum

2.0K
When light passes through a substance, a portion of the light is absorbed while the remaining light is reflected or transmitted. If the molecule absorbs light between the wavelengths of 180–400 nm range, the UV spectrum is obtained, and if it absorbs light in the 400–780 nm wavelength range, the visible spectrum is obtained.     
The UV–Vis spectrum of a molecule is the plot of its absorbance versus wavelength. The plot is drawn by taking molar...
2.0K
Mass Spectrum: Interpretation01:24

Mass Spectrum: Interpretation

2.8K
An unknown compound can be established by identifying the molecular ion peak in the mass spectrum. The molecular ion peak is often weak or absent due to the predominance of fragmentation in high-energy electron beams. In such cases, a soft-energy electron beam can be used to scan the spectrum to enhance the intensity of the molecular ion peak. Additionally, chemical ionization, field ionization, and desorption ionization spectra are used to obtain a relatively intense molecular ion peak.To...
2.8K

You might also read

Related Articles

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

Sort by
Same author

Temperature Classification of the Spectra of Dysprosium (Dy i, Dy ii).

Journal of research of the National Bureau of Standards. Section A, Physics and chemistry·2020
Same author

Faint Lines in the Arc Spectrum of Iron (Fe I).

Journal of research of the National Bureau of Standards. Section A, Physics and chemistry·2020
Same author

CH in the Solar Spectrum.

Journal of research of the National Bureau of Standards. Section A, Physics and chemistry·2019
See all related articles

Related Experiment Video

Updated: Jan 23, 2026

In Situ Monitoring of the Accelerated Performance Degradation of Solar Cells and Modules: A Case Study for CuIn,GaSe2 Solar Cells
09:19

In Situ Monitoring of the Accelerated Performance Degradation of Solar Cells and Modules: A Case Study for CuIn,GaSe2 Solar Cells

Published on: October 3, 2018

8.8K

OH in the Solar Spectrum.

Charlotte E Moore, Herbert P Broida

    Journal of Research of the National Bureau of Standards. Section A, Physics and Chemistry
    |June 20, 2019
    PubMed
    Summary
    This summary is machine-generated.

    Revised solar spectrum analysis identifies 175 unblended and 124 partial hydroxyl (OH) lines. This study refines our understanding of OH

    More Related Videos

    Electrospinning of Photocatalytic Electrodes for Dye-sensitized Solar Cells
    09:30

    Electrospinning of Photocatalytic Electrodes for Dye-sensitized Solar Cells

    Published on: June 28, 2017

    10.1K
    Experimental System of Solar Adsorption Refrigeration with Concentrated Collector
    07:18

    Experimental System of Solar Adsorption Refrigeration with Concentrated Collector

    Published on: October 18, 2017

    15.0K

    Related Experiment Videos

    Last Updated: Jan 23, 2026

    In Situ Monitoring of the Accelerated Performance Degradation of Solar Cells and Modules: A Case Study for CuIn,GaSe2 Solar Cells
    09:19

    In Situ Monitoring of the Accelerated Performance Degradation of Solar Cells and Modules: A Case Study for CuIn,GaSe2 Solar Cells

    Published on: October 3, 2018

    8.8K
    Electrospinning of Photocatalytic Electrodes for Dye-sensitized Solar Cells
    09:30

    Electrospinning of Photocatalytic Electrodes for Dye-sensitized Solar Cells

    Published on: June 28, 2017

    10.1K
    Experimental System of Solar Adsorption Refrigeration with Concentrated Collector
    07:18

    Experimental System of Solar Adsorption Refrigeration with Concentrated Collector

    Published on: October 18, 2017

    15.0K

    Area of Science:

    • * Astronomy and Astrophysics
    • * Molecular Spectroscopy

    Background:

    • * The solar spectrum contains absorption lines from various molecules, including hydroxyl (OH).
    • * Accurate identification of these lines is crucial for understanding solar atmospheric composition and processes.

    Purpose of the Study:

    • * To revise and improve the identification of hydroxyl (OH) lines within the solar spectrum.
    • * To provide a more accurate catalog of OH spectral features for solar studies.

    Main Methods:

    • * Detailed laboratory analyses of the A 2Σ+-X2∏ bands of OH.
    • * Comparison of laboratory-derived line intensities with solar spectral data.
    • * Identification of solar lines as either unblended OH contributions or partial contributors.

    Main Results:

    • * A total of 175 solar lines were identified as exclusively OH (unblended).
    • * An additional 124 solar lines were found to have OH as a partial contributor.
    • * Laboratory intensities served as a reliable guide for solar line identification.

    Conclusions:

    • * The revised identifications significantly enhance the accuracy of OH line mapping in the solar spectrum.
    • * This work provides a refined dataset for future solar atmospheric research and modeling.