Material Analysis · Composition & Elemental

Organic Elemental Analysis (EA)

Characterise bulk CHNS or CHNS/O composition, empirical elemental ratios, and sample purity or batch consistency using a scope agreed around your sample and decision.

  • Bulk CHNS or CHNS/O composition
  • Empirical elemental ratios
  • Sample purity or batch consistency
  • CHN, CHNS, or oxygen mode
Configure & Book Check Sample Requirements
Representative Organic Elemental Analysis equipment selected for the TESTDOG service catalogue
Price
from£15
per sample, excl. VAT
Turnaround
6 working days
Preparation and scope dependent
Available platforms
Elementar UNICUBELECO CHN828Thermo Fisher FLASH 2000PerkinElmer 2400 Series II
Typical outputs
CHNS/O mass percentagesReplicate statisticsCalibration and method summaryProcessed chromatogram or spectrum

Why this service

What EA can help you understand

Organic Elemental Analysis is selected when the project needs defensible information on bulk CHNS or CHNS/O composition, empirical elemental ratios, or sample purity or batch consistency. Combustion…

01

Bulk CHNS or CHNS/O composition

CHN, CHNS, or oxygen mode

02

Empirical elemental ratios

micro- or macro-sample configuration

03

Sample purity or batch consistency

empirical-formula calculation

Choose the scope

Start from the question, not the tool

The method, preparation route and reporting depth depend on what you need to decide.

CHN, CHNS, or oxygen mode

bulk CHNS or CHNS/O composition

Best used when
bulk CHNS or CHNS/O composition
Typical result
CHNS/O mass percentages
Preparation note
Exact mass and any drying or dispersion step are confirmed after technical review.

Common outputs

A result package matched to the decision you need to make

Fields, conditions, processing and file formats are confirmed before work begins.

StandardCHNS/O mass percentages

CHNS/O mass percentages reported with the agreed units, sample reference and measurement conditions.

StandardReplicate statistics

Replicate statistics supplied in a labelled format suitable for direct sample or condition comparison.

OptionalCalibration and method summary

Calibration and method summary provided with the processing basis and quality checks agreed during technical review.

OptionalProcessed chromatogram or spectrum

Processed chromatogram or spectrum included when selected in the confirmed reporting scope.

Example results

What EA results can look like

EA result: The image shows sEM images of PVBCl pristine resin (before functionalization), aminated resin (after functionalization), optical image
Infrared spectrum

The image shows sEM images of PVBCl pristine resin (before functionalization), aminated resin (after functionalization), optical image.

Aimon Masood et al. · source · CC BY

Sample requirements

What to provide before work begins

Provide representative, clearly labelled samples and identify the decision, feature or comparison that matters.

Suitable sampleSubmission requirementPlanning note
Powder / particlesProvide a dry, homogeneous and clearly labelled sample in a sealed container.Exact mass and any drying or dispersion step are confirmed after technical review.
Liquid / solutionProvide a sealed, compatible container labelled with composition, concentration and solvent.Declare volatility, corrosivity, suspended solids and any storage or temperature requirement.
Solid / componentProvide a clean, stable and clearly labelled specimen with the target face or region identified.Confirm dimensions, cutting permission and whether the original geometry must be preserved.

Objective: state the decision, comparison or acceptance criterion the work must support.

Handling and access: declare hazards, instability, confidentiality, file constraints or special logistics before dispatch or transfer.

Questions and answers

Common planning decisions

Short answers to issues that can change preparation, scope, timing or interpretation.

What should I send for Organic Elemental Analysis?

Provide powder / particles, liquid / solution, solid / component as applicable. Exact quantity, dimensions and preparation are confirmed during technical review.

Which analysis option should I choose?

Choose the mode around the decision you need to make. For bulk CHNS or CHNS/O composition, start with CHN, CHNS, or oxygen mode; add micro- or macro-sample configuration when comparison or quantification is required.

How long will the test take?

Typical turnaround is 6 working days after sample acceptance and method confirmation.

What can limit the result?

The method reports bulk totals, not bonding or chemical form. Heterogeneity and incomplete combustion are major error sources.

Configure the service

Send the information needed to scope EA correctly

  • Sample form, material, dimensions and quantity
  • Feature or decision the result must address
  • Required comparison, acceptance criterion or reference
  • Preferred output and reporting depth
EA analysisfrom£15

Typical turnaround: 6 working days

Configure & Book