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 3,200+ scientific posters on ePosters
  • More than 4,700+ 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
Tracking The Aluminum Used To Purify Tap Water
Kobe University researchers demonstrate a new analysis method to measure the concentration of aluminium used to purify tap water.
Electronic Sensor Tells Dead Bacteria From Live
The sensor, which measures 'osmoregulation', is a potential future tool for medicine and food safety.
What Makes a Good Scientist?
It’s the journey, not just the destination that counts as a scientist when conducting research.
New NIH-EPA Research Centers to Study Environmental Health Disparities
Scientists will partner with community organizations to study these concerns and develop culturally appropriate ways to reduce exposure to harmful environmental conditions.
Air Pollution Linked to Heart Disease
10-year project revealed air pollutants accelerate plaque build-up in arteries to the heart.
Following Tricky Triclosan
Antibacterial product flows through streams, crops.
Paper Filter Can Remove Viruses from Water
A new paper filter can purify water from viruses, even the most difficult and contagious.
Changing California Land Uses will Shape Water Demands in 2062
If past patterns of California land-use change continue, projected water needs by the year 2062 will increase beyond current supply.
Chemical Emitted by Trees Can Impact Ozone Levels
Researchers have found that the way that isoprene, a natural hydrocarbon compound emitted from broadleaf deciduous trees, is processed in the atmosphere at night can have a big impact on the ozone in the atmosphere the next day.
A New Sensor to Assess the Biodiversity in the Atmosphere
UPM researchers design a portable autonomous device capable of collecting and assessing bacterial, viral and fungal biodiversity in the air as well as pollen in different urban areas and seasons.
Scroll Up
Scroll Down
SELECTBIO

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
3,200+ scientific and medical posters
A library of 2,500+ scientific videos on LabTube
4,700+ scientific videos
Close
Premium CrownJOIN TECHNOLOGY NETWORKS PREMIUM FOR FREE!