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

Elemental Analyzer Assists Monitoring of the Carbon Cycle

Published: Wednesday, May 01, 2013
Last Updated: Wednesday, May 01, 2013
Bookmark and Share
Direct determination of total carbon, organic and inorganic carbon by using Model 440 CHN elemental analyzer.

Exeter Analytical reports that a growing number of laboratories are using its Model 440 CHN elemental analyzer to accurately determine percentage organic and inorganic carbon levels at different parts of the carbon cycle.

The carbon cycle is the biochemical process by which carbon is exchanged among the biosphere, pedoshere, geosphere, hydrosphere and atmosphere of the Earth.

Along with the nitrogen cycle and the water cycle, the carbon cycle comprises a sequence of events that are key to making the Earth capable of sustaining life.

Exeter Analytical has published an optimized technique for direct determination of total carbon, organic and inorganic carbon in marine sediments.

The Model 440 CHN Elemental Analyzer is able to provide accurate results expressed in micrograms of total Carbon and Nitrogen detected.

Then after sample acidification the organic carbon content can be determined. Total carbon minus organic carbon gives the inorganic content.

Identification of marine sediment contamination issues and subsequent tracking of the success of remedial actions via monitoring levels of total, organic and inorganic carbon levels is a technique of considerable importance.

Organic and inorganic carbon monitoring is also very important in soil analysis because it enables us to understand and estimate potential responses of soil carbon to global changes in the future.

Carbon can be determined in both its inorganic and organic forms via acid pre-treatment or temperature differential measurement using an Exeter Analytical Model 440 Elemental Analyzer.

The Exeter Analytical Model 440 is a static combustion CHN elemental analyzer, with a unique horizontal furnace design, which enables easy removal of sample ash between each marine sediment or soil analysis.

Consequently one combustion tube will analyze in excess of 1000 sediment / soil samples without the need for removal and cleaning.

In addition the Model 440 provides the capacity to process filters which are used in applications for river / oceanographic analysis.

Filters up to 47 mm in diameter can be processed in one analytical cycle. By comparison other elemental analyzers, employing vertical furnace designs, need cleaning after as little as 20 samples and larger filters have to be sub-sampled several times and then corrective calculations made to enable analysis.

Effectively eliminating troublesome residue build-up the gas flow characteristics of the Model 440 analyzer are superior to other elemental analyzers thereby providing longer-term calibration stability as well as enhanced accuracy and precision for measured sample data.

As the Exeter Analytical Model 440 provides complete control over combustion parameters it is able to reproducibly achieve 100% combustion with the widest range of marine sediment and soil samples.


Further Information
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 2,500+ scientific posters on ePosters
  • More than 3,700+ 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
Playing 'Tag' with Pollution lets Scientists See Who's It
Using a climate model that can tag sources of soot from different global regions and can track where it lands on the Tibetan Plateau, researchers have determined which areas around the plateau contribute the most soot — and where.
Pesticide Found in 70 Percent of Massachusetts’ Honey Samples
New Harvard University study says that the pesticide commonly found in honey samples is implicated in Colony Collapse Disorder.
Ocean Acidfication may have a Dramatic Affect on Marine Life
Study finds many species may die out and others may migrate significantly as ocean acidification intensifies.
Nanoparticles Can Clean Up Environmental Pollutants
Researchers have found that nanomaterials and UV light can “trap” chemicals for easy removal from soil and water.
Fossil Fuel Emissions will Complicate Radiocarbon Dating, Warns Scientist
The paper is published in the journal PNAS.
New Research will Show How the Environment Could Change the Way We Eat
A new study funded by the Wellcome Trust will investigate how environmental changes over the next 20-30 years may impact the way we eat, in the UK and worldwide.
Bedside Ebola Diagnostic
A new test can accurately diagnose Ebola virus disease within minutes, providing clinicians with crucial information for treating patients and containing outbreaks.
The Deep Carbon Cycle
Over billions of years, the total carbon content of the outer part of the Earth—in its upper mantle, crust, oceans and atmospheres—has gradually increased, scientists report.
Profiling DNA Viruses in Arctic Lakes
The Arctic's freshwater lakes contain viral communities composed of DNA viruses from lineages that are largely distinct from those described elsewhere, a new study suggests.
Unravelling the Mysteries of Carbonic Acid
Researchers have shown how gaseous carbon dioxide molecules are solvated by water to initiate the proton transfer chemistry that produces carbonic acid and bicarbonate.
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
2,500+ scientific and medical posters
A library of 2,500+ scientific videos on LabTube
3,700+ scientific videos
Close
Premium CrownJOIN TECHNOLOGY NETWORKS PREMIUM FREE!