Follow us...

 

Search News Archives

Channels

News

 

 

View Channel

Laboratory Products

 

 

View Channel

Special Offers and Promotions

 

Microscopy | Image Analysis

 

 

View Channel

Separation Science

 

 

View Channel

Coronavirus (COVID-19)

 

 

View Channel

Research & Case Studies

 

 

View Channel

Brochures & Literature

 

 

View Channel

 

Conferences | Events

Analysis of Carbon & Nitrogen in Fertilizers

publication date: Jul 6, 2015
 | 
author/source: Exeter Analytical

Model 440

The analysis of fertilizers to determine their Carbon and Nitrogen content can be done very rapidly and accurately on the Exeter Analytical Model 440 system. 

The Model 440 elemental analyser uses thermal conductivity detectors to simultaneously analyse the nitrogen, carbon and hydrogen content. Interferences are removed through column packing’s and the combusted sample is converted into carbon dioxide, water vapour and nitrogen. Sample preparation is straightforward. Approximately 1-3 mg of fertilizer is weighed out in a tin capsule which is placed in a nickel sleeve for sample containment. A single standard, inserted at set places in the run, can be used for calibration.

The analysis of liquid fertilizer samples can also be done on the Model 440 without sacrificing accuracy or precision. Roughly 1-3 µl of sample is drawn into a syringe or micro pipette and injected into a tin capsule. The capsule is then sealed using an Exeter Analytical Capsule Sealer, weighed, and run with the same parameters as solids.

Featuring a horizontal furnace design, the Exeter Analytical Model 440, allows analysts to routinely and simply produce accurate and precise data on wide ranging sample types without system re-optimisation, saving precious time and reducing running costs. The Model 440 software contains some useful advanced features to enhance your fertilizer analysis. Linear Regression Plus is a unique software algorithm that provides unmatched accuracy in the determination of the nitrogen content of combustible samples. Created from the experience of leading experts in CHN microanalysis - Linear Regression Plus both improves data quality and reduces the time taken to accurately determine the nitrogen composition of samples. Linear Regression Plus enables accurate measurement of low Nitrogen levels with a high degree of accuracy. 

Exeter Analytical is a company dedicated to elemental microanalysis for over 25 years. Our expertise and experience with instruments, consumables and supplies has allowed us to better understand all issues facing microanalysts.  As a consequence, whether you are a regular or an occasional purchaser, experienced and knowledgeable staff is always available to provide technical advice.  


more about exeter analytical


more news from exeter analytical


 

 

 


If you have not logged into the website then please enter your details below.



 

Subscribe to any of our newsletters for the latest on new laboratory products, industry news, case studies and much more!

Newsletters from Lab Bulletin

 

Request your free copies HERE

 

 

 

Popular this Month...

Our Top 10 most popular articles this month

 

Today's Picks...

 

 


 

Looking for a Supplier?

Search by company or by product

 


Company Name:

Product:


 

 

 

 

Please note Lab Bulletin does not sell, supply any of the products featured on this website. If you have an enquiry, please use the contact form below the article or company profile and we will send your request to the supplier so that they can contact you directly.

Lab Bulletin is published by newleaf marketing communications ltd.


 

Media Partners