Central Science Laboratory

Elemental Analyser

Elemental Analyser
Sandy Bay Campus, Chemistry Building, Level 4, Room 448

The facility for Elemental Microanalysis is equipped with a flash combustion elemental analyser and a high precision microbalance:

  • a Thermo Finnigan EA 1112 Series Flash Elemental Analyser
  • a Sartorius Microbalance SE2

The elemental analyser measures the amount of carbon, hydrogen, nitrogen, sulphur in materials by the combustion of small amounts (1-2 mg) of the unknown substance in pure oxygen and in the presence of catalysts at high temperature. The combustion products are separated by passing them through a packed column and are quantified using a thermal conductivity detector.

The high precision micro balance can weigh samples up to 2 grams with a readability of 0.1 µg.

Applications:

The facility is principally used to determine the levels of carbon, hydrogen, nitrogen and sulphur in samples as diverse as rocks, soils, ice cores, biological materials, and novel organometallic compounds. A recent project measured the nitrogen content of a series of forage grasses to determine which species had the best protein content.

For more information please contact Dr Thomas Rodemann.