Corporate Banner
Satellite Banner
Scientific Communities
Become a Member | Sign in
Home>News>This Article

Elemental Analysis of Soil Samples

Published: Wednesday, April 10, 2013
Last Updated: Wednesday, April 10, 2013
Bookmark and Share
Determination of CHN content of soil samples by using Model 440 Elemental Analyzer.

Exeter Analytical Inc. has announced that Application note 51 illustrates how the Carbon, Hydrogen and Nitrogen (CHN) content of soil samples can be precisely and reproducibly determined using their Model 440 Elemental Analyzer.

The determination of the Carbon, Hydrogen and Nitrogen (CHN) content of soil samples is of major interest to environmental and agrochemical laboratories throughout the world.

Organic matter is known to directly influence the productive capacity of different soils as it is a major contributor of C, H as well as N, P, S and other nutrients.

Percentage 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 determination of the Nitrogen content of soils using a Model 440 Elemental Analyzer saves considerable time and cost with no diminishment of data quality compared with the traditional Kjeldahl nitrogen determination method.

This application note includes details of the analytical methodology used plus data demonstrating the high quality of CHN data determination that is possible using a 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 residue between each soil analysis.

Consequently one combustion tube will analyze in excess of 1000 soil samples without the need for removal and cleaning. By comparison other elemental analyzers, employing vertical furnace designs, will require cleaning after as little as 20 samples.

The gas flow characteristics of the Model 440 analyzer are superior to other elemental analyzers due to the effective elimination of troublesome residue build-up.

This thereby provides longer-term calibration stability as well as enhanced accuracy and precision for measured soil sample data.

In addition, as the Model 440 provides complete control over combustion parameters it is able to reproducibly achieve 100% combustion with the widest range of soil samples.

Proprietary Nitrogen analysis software uniquely enables accurate measurement of low Nitrogen levels (in the 0.1-0.2% range) with a high degree of accuracy.

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 3,500+ scientific posters on ePosters
  • More Than 5,200+ 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 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.

Related Content

Exeter Analytical Marks 21 Years in Europe
A supplier of CHN microanalysis instruments, consumables and supplies to universities and government research labs.
Wednesday, September 09, 2015
Scientific News
Integrated Omics Analysis
Studying multi-omics promises to give a more holistic picture of the organism and its place in its ecosystem, however despite the complexities involved those within the field are optimistic.
Unravelling the Role of Key Genes and DNA Methylation in Blood Cell Malignancies
Researchers from the University of Nebraska Medical Center have demonstrated the role of Dnmt3a in safeguarding normal haematopoiesis.
Salford Lung Study - The First Real World Clinical Trial
In this podcast, we learn about the Salford Lung Study and its potential to revolutionize the way we assess new drugs and treatments around the world.
Point of Care Diagnostics - A Cautious Revolution
Advances in molecular biology, coupled with the miniaturization and improved sensitivity of assays and devices in general, have enabled a new wave of point-of-care (POC) or “bedside” diagnostics.
Zika Virus Infection Alters Human and Viral RNA
Researchers have discovered that Zika infections results in human and viral genetic modification.
Mapping Serotonin in the Living Brain
Imaging technique that creates a 3D video of serotonin transport could aid antidepressant development.
RNA-Binding Proteins Role in ALS Revealed
Researchers describe how damage to RNA-binding protein contributes to ALS, isolating a possible therapeutic target.
MRIs for Fetal Health
Algorithm could help analyze fetal scans to determine whether interventions are warranted.
Illumina Contributes to ClinVar Database
The contribution includes variants of all classifications, from pathogenic to benign, identified during interpretation of whole genome sequences generated in the CLIA-certified, CAP-accredited Illumina Clinical Services Laboratory.
Structure of Primary Cannabinoid Receptor is Revealed
The findings provide key insights into how natural and synthetic cannabinoids including tetrahydrocannabinol —a primary chemical in marijuana—bind at the CB1 receptor to produce their effects.
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
3,500+ scientific and medical posters
A library of 2,500+ scientific videos on LabTube
5,200+ scientific videos