Oxidative stability analyser

Oxidative stability analyser

Oxidative stability analyser

The Metrohm Rancimat helps us determine the oxidation stability of natural fats and oils.   The instrument works on the principle of passing air through a test sample at an elevated temperature, causing accelerated ageing of the sample.

During this process, long-chain fatty molecules are oxidised, decomposing to form highly volatile organic substances and insoluble polymeric compounds. The highly volatile substances are collected in a water trap and detected by measuring the conductivity.  The time taken for these decomposition products to form is called the induction time and characterises the resistance of the test sample to oxidative decomposition, that is, the oxidation stability. The instrument is controlled by computer software providing data recording and evaluation.

Oxidation stability is an important quality measurement for vegetable oils (and biodiesel). The technique is important for development of vegetable oil processing and characterisation of antioxidants. Evaluation of the data can allow estimation of product shelf-life.

To use the oxidative stability analyser or find out more about its capabilities, please contact us.

We have an extensive range of raw materials characterisation equipment, see below.

Raw materials characterisation

Agilent 2200 TapeStation nucleic acids system

Agilent 2200 TapeStation nucleic acids system

The 2200 TapeStation is ideal for the very rapid characterisation of DNA or RNA samples, including quality assessment, establishing DNA/RNA size ranges and quantification.

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Analytical equipment

Analytical equipment

We have a variety of analytical equipment available at the centre.

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Benchtop NMR analyser

Benchtop NMR analyser

The Benchtop NMR Analyser is based on Nuclear Magnetic Resonance (NMR) and allows for fast, accurate, reproducible and solvent-free measurement of oil, fat and moisture in oil seeds, seed cake and foodstuffs.

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Gas chromatography

Gas chromatography

Gas chromatography (GC) is a flexible technique that allows separation and quantification of chemical substances found within a complex mixture.

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High performance liquid chromatography

High performance liquid chromatography

High Performance Liquid Chromatography (HPLC) is a flexible technique that allows separation and quantification of chemical substances found within a complex mixture.

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Inductively coupled plasma mass spectrometer (ICP-MS)

Inductively coupled plasma mass spectrometer (ICP-MS)

The Agilent 7700x ICP-MS is capable of measuring metal and non-metal elements in concentrations of parts per trillion.

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Molecular analysis facilities

Molecular analysis facilities

We have established a set of molecular analysis labs to enable a variety of genetic analysis applications to be carried out.

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Microbiology facilities

Microbiology facilities

Our microbiology laboratory offers a range of equipment allowing users to safely handle, store and work with a variety of aerobic and anaerobic microbes, at ACDP hazard category II level.

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Oxidative stability analyser

Oxidative stability analyser

The Metrohm Rancimat helps us determine the oxidation stability of natural fats and oils. The instrument works on the principle of passing air through a test sample at an elevated temperature, causing accelerated aging of the sample.

Read more

Water / liquid sample analysis

Water / liquid sample analysis

The Hache spectrophotometer offers a safe, easy and versatile system to measure various characteristics of liquid samples.

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