What is FTIR in oil analysis?

FTIR stands for Fourier Transform Infrared Spectroscopy. It is often simply referred to as an ‘Infrared test’. Oil contaminants and additive molecules will absorb some of the infrared radiation, but only at certain frequencies. Soot and other particles will absorb the radiation at all frequencies.

What is FTIR analysis used for?

Fourier Transform Infrared Spectroscopy, also known as FTIR Analysis or FTIR Spectroscopy, is an analytical technique used to identify organic, polymeric, and, in some cases, inorganic materials. The FTIR analysis method uses infrared light to scan test samples and observe chemical properties.

How does FTIR analysis work?

How FTIR Works. FTIR analysis measures the range of wavelengths in the infrared region that are absorbed by a material. This is accomplished through the application of infrared radiation (IR) to samples of a material. Then, the signal is decoded by applying a mathematical technique known as Fourier transformation.

How do you Analyse data on FTIR?

In order to understand FTIR results, it’s helpful to know a little bit about how FTIR works. Essentially, by applying infrared radiation (IR) to samples of materials, FTIR analysis measures a sample’s absorbance of infrared light at various wavelengths to determine the material’s molecular composition and structure.

How accurate is infrared spectroscopy?

In analysis of mixtures under favorable conditions, accuracy is greater than 1%. In routine analyses, it is ± 5%. The main goal of IR spectroscopic analysis is to determine the chemical functional groups in the sample. Different functional groups absorb characteristic frequencies of IR radiation.

What information can be gathered from an infrared spectrum?

IR can provide information on a range of oil characteristics, e.g. contamination, breakdown, additive packages, fluid identity, etc. In all of these cases the response of the oil to specific regions in the infrared spectrum is examined and weighted, each being unique to the characteristic being analyzed.

What are the basic principles of infrared spectroscopy?

IR spectroscopy detects the absorption of light by a compound, in the IR region of the electromagnetic spectrum. To absorb light a molecule must have a bond within its structure that can exhibit what is referred to as a ‘dipole moment’ which means electrons within a bond are not shared equally.

How is FTIR used in lubricating oil analysis?

FTIR Analysis of In-Service Lubricating Oil. Fourier-transform infrared (FTIR) spectroscopy is a simple technique used in oil analysis. It is specifically used for detecting degradation, dilution, or illegal additives in different types of oils. FTIR spectroscopy uses the interaction of invisible infrared radiation and matter.

How is FTIR used to identify organic materials?

What can FTIR spectroscopy be used to detect?

Fourier transform infrared (FTIR) spectroscopy is a versatile tool used to detect common contaminants, lube degradation byproducts and additives within lubricating oils.

How is a sample prepared for FTIR analysis?

For analysis by transmission, the sample needed to be made translucent to the laser and infrared energy, by directly inserting the sample in the optical path, casting a thin film on a salt crystal, or mixing a powder version of the sample with a salt and casting.

What is FTIR in oil analysis? FTIR stands for Fourier Transform Infrared Spectroscopy. It is often simply referred to as an ‘Infrared test’. Oil contaminants and additive molecules will absorb some of the infrared radiation, but only at certain frequencies. Soot and other particles will absorb the radiation at all frequencies. What is FTIR analysis…