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

Gas Chromatography: Types of Detectors-II01:19

Gas Chromatography: Types of Detectors-II

1.3K
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...
1.3K
Gas Chromatography: Types of Detectors-I01:21

Gas Chromatography: Types of Detectors-I

1.7K
There are different types of detectors used in gas chromatography, each with its own specific properties that make it suitable for detecting certain types of analytes. The most commonly used detectors in GC are thermal conductivity detector (TCD), flame ionization detector (FID), and electron capture detector (ECD).
TCD is the earliest and most widely used detector that operates by measuring the changes in the thermal conductivity of the carrier gas. When a sample compound enters the detector,...
1.7K
Gas Chromatography: Overview of Detectors01:13

Gas Chromatography: Overview of Detectors

2.1K
Detectors in gas chromatography (GC) help identify and quantify the components of a mixture by translating chemical properties into measurable signals, which are displayed on a chromatogram. Detectors can be categorized into two main types: destructive and non-destructive.
A non-destructive detector allows a sample to be analyzed without altering or consuming it, meaning the sample can be collected after detection for further analysis. Examples include thermal conductivity detectors and...
2.1K
Galvanometer01:24

Galvanometer

3.1K
Common devices, including car instrument panels, battery chargers, and inexpensive electrical instruments, measure potential difference (voltage), current, or resistance using a d'Arsonval galvanometer. This electromechanical instrument is also known as a moving coil galvanometer.
The galvanometer consists of  two concave-shaped permanent magnets, providing a uniform radial magnetic field in the annular region. In the center, a pivoted coil of fine copper wire is placed in the uniform...
3.1K
Gas Chromatography–Mass Spectrometry (GC–MS)01:14

Gas Chromatography–Mass Spectrometry (GC–MS)

6.9K
Gas chromatography–mass spectrometry (GC–MS) is the combination of analytical techniques of gas chromatography and mass spectrometry in a single instrument for analyzing a mixture of compounds. The gas chromatograph separates the compounds in the mixture, and the mass spectrometer analyzes each compound separately to determine the molecular masses and molecular structures.
A gas chromatograph consists of a long, narrow capillary column with a polysiloxane coating on the inner wall....
6.9K
Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation01:26

Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation

800
Inductively coupled plasma (ICP) is the common plasma source used in atomic emission spectroscopy (AES), a technique that detects and analyzes various elements in a sample. This method is often called inductively coupled plasma atomic emission spectroscopy (ICP-AES).
There are three main types of inductively coupled plasma atomic emission spectroscopy  (ICP-AES) instruments: sequential, simultaneous multichannel, and Fourier transform instruments, with the latter being less commonly used....
800

You might also read

Related Articles

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

Sort by
Same author

An active hyperspectral imaging system based on a multi-LED light source.

The Review of scientific instruments·2019
Same author

Note: A unibody NIR transmission probe for in situ liquid detection.

The Review of scientific instruments·2018
Same author

Mechanisms involved in ceramide-induced cell cycle arrest in human hepatocarcinoma cells.

World journal of gastroenterology·2007
Same author

A population-based survey of women's traditional postpartum behaviours in Northern China.

Midwifery·2007
Same author

A glimpse of streptococcal toxic shock syndrome from comparative genomics of S. suis 2 Chinese isolates.

PloS one·2007
Same author

Colon carcinoma cells harboring PIK3CA mutations display resistance to growth factor deprivation induced apoptosis.

Molecular cancer therapeutics·2007
Same journal

A compact low-power magnetic particle imaging scanner based on a permanent-magnet field-free-line generator with high gradient.

The Review of scientific instruments·2026
Same journal

Achieving ultrahigh resolution with high efficiency: Optical design of the two-dimensional Resonant Inelastic X-ray Scattering (2D-RIXS) spectrometer at NanoTerasu beamline 02U.

The Review of scientific instruments·2026
Same journal

Automated laboratory x-ray diffractometer and fluorescence spectrometer for high-throughput materials characterization.

The Review of scientific instruments·2026
Same journal

Nonlinear Bayesian Doppler tomography for simultaneous reconstruction of flow and temperature.

The Review of scientific instruments·2026
Same journal

A Reflectance-based multimodal wearable photoplethysmography (PPG) sensor.

The Review of scientific instruments·2026
Same journal

Temporal analysis of products-Raman (TAP-Raman): An integrated setup for operando spectroscopy and transient kinetic analysis.

The Review of scientific instruments·2026
See all related articles

Related Experiment Video

Updated: Feb 17, 2026

Infrared Degenerate Four-wave Mixing with Upconversion Detection for Quantitative Gas Sensing
10:42

Infrared Degenerate Four-wave Mixing with Upconversion Detection for Quantitative Gas Sensing

Published on: March 22, 2019

6.6K

Note: A NDIR instrument for multicomponent gas detection using the galvanometer modulation.

Huijie Wang1, Jing Wang1, Xiangyun Ma1

  • 1School of Precision Instrument and Opto-electronics Engineering, Tianjin University, Tianjin 300072, China.

The Review of Scientific Instruments
|December 3, 2017
PubMed
Summary
This summary is machine-generated.

A novel non-dispersive infrared (NDIR) instrument utilizes galvanometer modulation for efficient multicomponent gas detection. This simpler NDIR sensor offers improved stability and is ideal for vehicle emissions and remote sensing applications.

More Related Videos

Author Spotlight: Fabrication of a Low-Cost, Fiber-Coupled, and Air-Spaced Fabry-Pérot Etalon
07:22

Author Spotlight: Fabrication of a Low-Cost, Fiber-Coupled, and Air-Spaced Fabry-Pérot Etalon

Published on: February 3, 2023

8.5K
Quantitative Detection of Trace Explosive Vapors by Programmed Temperature Desorption Gas Chromatography-Electron Capture Detector
07:57

Quantitative Detection of Trace Explosive Vapors by Programmed Temperature Desorption Gas Chromatography-Electron Capture Detector

Published on: July 25, 2014

20.5K

Related Experiment Videos

Last Updated: Feb 17, 2026

Infrared Degenerate Four-wave Mixing with Upconversion Detection for Quantitative Gas Sensing
10:42

Infrared Degenerate Four-wave Mixing with Upconversion Detection for Quantitative Gas Sensing

Published on: March 22, 2019

6.6K
Author Spotlight: Fabrication of a Low-Cost, Fiber-Coupled, and Air-Spaced Fabry-Pérot Etalon
07:22

Author Spotlight: Fabrication of a Low-Cost, Fiber-Coupled, and Air-Spaced Fabry-Pérot Etalon

Published on: February 3, 2023

8.5K
Quantitative Detection of Trace Explosive Vapors by Programmed Temperature Desorption Gas Chromatography-Electron Capture Detector
07:57

Quantitative Detection of Trace Explosive Vapors by Programmed Temperature Desorption Gas Chromatography-Electron Capture Detector

Published on: July 25, 2014

20.5K

Area of Science:

  • Analytical Chemistry
  • Environmental Science
  • Optical Engineering

Background:

  • Non-dispersive infrared (NDIR) instruments are essential for multicomponent gas detection across various industries.
  • Conventional NDIR instruments often employ chopper modulation, which can be complex and less efficient.

Purpose of the Study:

  • To propose and evaluate a novel NDIR instrument utilizing galvanometer modulation for multicomponent gas detection.
  • To demonstrate the instrument's improved efficiency, stability, and applicability compared to conventional methods.

Main Methods:

  • Development of a NDIR instrument featuring a common optical path.
  • Implementation of galvanometer modulation technique for signal processing.
  • Comparative analysis with conventional chopper-modulated NDIR instruments.

Main Results:

  • The proposed galvanometer-modulated NDIR instrument exhibits a simpler configuration.
  • Enhanced detection efficiency and superior stability were observed compared to chopper-modulated NDIR instruments.
  • Successful application in measuring key gas components in vehicle emissions.

Conclusions:

  • Galvanometer modulation offers a more efficient and stable approach for NDIR multicomponent gas detection.
  • The developed NDIR instrument shows significant potential for remote sensing of spatially inhomogeneous gases.
  • This technology is well-suited for analyzing vehicle emissions and other environmental monitoring applications.