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

Flame Photometry: Overview01:02

Flame Photometry: Overview

1.3K
Flame photometry, also known as flame emission spectrometry, is a technique used for the qualitative and quantitative analysis of elements present in a sample using a flame as the source of excitation energy. The concept of flame photometry was realized in the early 1860s by Kirchhoff and Bunsen, who discovered that specific elements emit characteristic radiation when excited in flames. The first instrument developed for this purpose was used to measure sodium (Na) in plant ash using a Bunsen...
1.3K
Atomic Absorption Spectroscopy: Instrumentation01:22

Atomic Absorption Spectroscopy: Instrumentation

1.5K
An atomic absorption spectrophotometer (AAS) comprises several components: a radiation source, an atomizer, a monochromator, and a detector. The radiation source can be a hollow-cathode lamp (HCL) or an electrodeless-discharge lamp (EDL), both of which provide a narrow emission line of the required wavelength. However, some instruments use continuum sources and high-resolution monochromators to achieve a narrow range of radiation.
The atomizer used in AAS can be either a flame atomizer or an...
1.5K
Gas Chromatography: Types of Detectors-I01:21

Gas Chromatography: Types of Detectors-I

1.3K
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,...
1.3K
IR Spectrometers01:25

IR Spectrometers

2.1K
There are two main infrared (IR) spectrophotometers: dispersive IR spectrometers and Fourier transform infrared (FTIR) spectrometers. In a dispersive IR spectrometer, a beam of infrared radiation produced by a hot wire is divided into two parallel equal-intensity beams using mirrors. One beam passes through the sample, while another is a reference beam. The beams then move through the monochromator, which separates the radiations into a continuous spectrum of different frequencies. The...
2.1K
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

You might also read

Related Articles

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

Sort by
Same author

Unraveling the Distinct Roles of Al and Ca in Microstructure Evolution and Tensile Response of Extruded Mg-Al-Ca Alloys.

Materials (Basel, Switzerland)·2026
Same author

Forced changes in a Tibetan lake ecosystem over the past millennium.

Nature communications·2026
Same author

A single-arm, single-center phase II clinical study of concurrent brain radiotherapy combined with tislelizumab and chemotherapy in patients with small-cell lung cancer and brain metastases.

Journal of thoracic disease·2026
Same author

Carbon ion radiotherapy and radiation-induced lung injury: clinical evidence, mechanistic insights, and future directions.

Frontiers in oncology·2026
Same author

An acoustically transmissive electrochemical vector hydrophone with horn-driven velocity amplification.

Microsystems & nanoengineering·2026
Same author

A deep learning model based on combining surface and esophageal ECG data for diagnosis of paroxysmal supraventricular tachycardia.

Digital health·2026

Related Experiment Video

Updated: Dec 27, 2025

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

6.5K

Near-Infrared Tunable Laser Absorption Spectroscopic Acetylene Sensor System Using a Novel Three Mirror-Based, Dense

Guoqiang Zhong1, Zhuo Ma1, Junbo Wang1

  • 1State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China.

Sensors (Basel, Switzerland)
|March 1, 2020
PubMed
Summary
This summary is machine-generated.

A novel three mirror-based gas cell enhances infrared absorption spectroscopy. This design achieves a long optical path length for sensitive acetylene detection, with a limit of detection below 1 ppm.

Keywords:
acetylene detectionlaser absorption spectroscopymultipass gas cellwavelength modulation spectroscopy

More Related Videos

Non-equilibrium Microwave Plasma for Efficient High Temperature Chemistry
07:17

Non-equilibrium Microwave Plasma for Efficient High Temperature Chemistry

Published on: August 1, 2017

13.0K
Characterizing Far-infrared Laser Emissions and the Measurement of Their Frequencies
09:38

Characterizing Far-infrared Laser Emissions and the Measurement of Their Frequencies

Published on: December 18, 2015

12.5K

Related Experiment Videos

Last Updated: Dec 27, 2025

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

6.5K
Non-equilibrium Microwave Plasma for Efficient High Temperature Chemistry
07:17

Non-equilibrium Microwave Plasma for Efficient High Temperature Chemistry

Published on: August 1, 2017

13.0K
Characterizing Far-infrared Laser Emissions and the Measurement of Their Frequencies
09:38

Characterizing Far-infrared Laser Emissions and the Measurement of Their Frequencies

Published on: December 18, 2015

12.5K

Area of Science:

  • Optics and Spectroscopy
  • Gas Sensing Technology
  • Analytical Chemistry

Background:

  • Traditional Herriott cells use two mirrors, limiting optical path length and sensitivity.
  • Developing advanced gas cells is crucial for improving trace gas detection limits.

Purpose of the Study:

  • To propose and validate a novel three mirror-based dense pattern gas cell.
  • To establish an acetylene (C2H2) sensor system using the developed gas cell.
  • To evaluate the performance and detection limits of the sensor system.

Main Methods:

  • Modeled and designed a three mirror-based gas cell with adjustable optics.
  • Experimentally validated the optical path length (~11 m) and reflection number (60).
  • Integrated the gas cell with a near-infrared laser and a data acquisition system for acetylene detection.

Main Results:

  • The experimental optical path length closely matched the theoretical value.
  • The acetylene sensor system achieved a limit of detection (LoD) of 4.36 ppm at 0.5 s.
  • The LoD improved to <1 ppm with an averaging time exceeding 10 s.

Conclusions:

  • The three mirror-based gas cell design is effective for gas sensing applications.
  • The developed sensor system demonstrates high sensitivity for acetylene detection.
  • This approach is adaptable for creating gas cells with varying path lengths for infrared absorption spectroscopy.