Corporate Banner
Satellite Banner
Environmental Analysis
Scientific Community
 
Become a Member | Sign in
Home>News>This Article
  News
Return

Mettler Toledo Releases White Paper on How Hydrogen Affects Oxygen Analyzers

Published: Monday, January 28, 2013
Last Updated: Monday, January 28, 2013
Bookmark and Share
White paper explains how to improve oxygen analysis in chemical industry.

In safety critical applications where oxygen is being measured, oxygen analyzer reliability is vital. The advantages of tunable diode laser (TDL) analyzers are leading to their increased use in the chemical industry; however, the accuracy of some TDL systems is influenced by hydrogen in the gas, while others are not affected. In a new white paper, Mettler Toledo explains which is which.

Tunable diode laser (TDL) oxygen gas analyzers are growing in acceptance across the chemical and petrochemical industries.

Their low maintenance demand, absence of sample extraction and conditioning requirements, tolerance to dust and moisture, and in situ measurement make them highly attractive in many applications.

There are two commonly used signal processing techniques employed in oxygen TDL analyzers: wavelength modulation spectroscopy (WMS) and direct absorption spectroscopy (DAS).

Both, unlike alternative gas measurement technologies, are immune to cross-interference effects caused by other gases in the process - except if large quantities of hydrogen are present.

In these situations, TDL analyzers that use WMS will often report incorrect oxygen levels, whereas analyzers using DAS are unaffected by the presence of hydrogen.

This is because WMS systems have to rely on compensation algorithms, which include assumptions such as a non-varying hydrogen concentration, which is usually not the case.

This distinction is important where the analyzer is being used in safety critical applications, as erroneously low oxygen readings are associated with an increased risk of explosions.

In a new white paper, "The Influence of Hydrogen on the Performance of TDL Analyzers", Mettler Toledo explains why TDL oxygen analyzers with WMS are susceptible to hydrogen and why those with DAS are not.

According to the paper's author, Jean-Nic Adami, Head of Gas Process Analytics at Mettler Toledo, "In oxygen measurement applications where safety is paramount, you must be certain of the oxygen level in the process. DAS-based TDL sensors give you that assurance."

The white paper is available at www.mt.com/o2-gas.


Further Information

Join For Free

Access to this exclusive content is for Technology Networks Premium members only.

Join Technology Networks Premium for free access to:

  • Exclusive articles
  • Presentations from international conferences
  • Over 2,900+ scientific posters on ePosters
  • More than 4,200+ scientific videos on LabTube
  • 35 community eNewsletters


Sign In



Forgotten your details? Click Here
If you are not a member you can join here

*Please note: By logging into TechnologyNetworks.com you agree to accept the use of cookies. To find out more about the cookies we use and how to delete them, see our privacy policy.


Scientific News
Exposure to Air Pollution 30 Years Ago Associated with Increased Risk of Death
Exposure to air pollution more than 30 years ago may still affect an individual's mortality risk today, according to new research from Imperial College London.
Low-Cost, Portable NQR Spectroscopy
A researcher at Case Western Reserve University is developing a low-cost, portable prototype designed to detect tainted medicines and food supplements that otherwise can make their way to consumers. The technology can authenticate good medicines and supplements.
Ocean Acidification Makes Coralline Algae Less Robust
Ocean acidification (the ongoing decrease in the pH of the Earth’s oceans, caused by the uptake of CO2 from the atmosphere), is affecting the formation of the skeleton of coralline algae which play an important part in marine biodiversity, new research from the University of Bristol has found.
Battery Component Found to Harm Key Soil Microorganism
The material at the heart of the lithium ion batteries that power electric vehicles, laptop computers and smartphones has been shown to impair a key soil bacterium, according to new research.
Living a “Mixotrophic” Lifestyle
Some tiny plankton may have big effect on ocean’s carbon storage.
Living a “Mixotrophic” Lifestyle
Some tiny plankton may have big effect on ocean’s carbon storage.
Toxic Pollutants Found in Fish Across the World's Oceans
Scripps researchers' analysis shows highly variable pollutant concentrations in fish meat.
Global Nitrogen Footprint Mapped
Four countries cause almost half the world’s emissions, with developing countries tending to suffer local pollution caused by foreign demand.
Environmental Toxin May Increase Risk of Alzheimer's
First time scientists have observed brain tangles in an animal model through exposure to environmental toxin.
Global Ocean Warming has Doubled in Recent Decades
Lawrence Livermore scientists, working with National Oceanic and Atmospheric Administration and university colleagues, have found that half of the global ocean heat content increase since 1865 has occurred over the past two decades.
Scroll Up
Scroll Down
Skyscraper Banner

Skyscraper Banner
Go to LabTube
Go to eposters
 
Access to the latest scientific news
Exclusive articles
Upload and share your posters on ePosters
Latest presentations and webinars
View a library of 1,800+ scientific and medical posters
2,900+ scientific and medical posters
A library of 2,500+ scientific videos on LabTube
4,200+ scientific videos
Close
Premium CrownJOIN TECHNOLOGY NETWORKS PREMIUM FOR FREE!