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In a Nutshell: What is ATR Infrared Spectroscopy?

Infrared spectroscopy uses infrared light (heat radiation) to identify a large number of chemical substances like fluids, solids or gases. ATR stands for attenuated total reflection and is the method of choice for almost all routine analyses of fluids and solids.

In ATR infrared spectroscopy, an infrared light is pointed from below on a crystal, an infrared transparent prism. The light is almost totally reflected on the top surface, but a small part of the energy gets absorbed by the interaction with the molecules in the sample (evanescent wave). This loss of energy is measured and results in a spectrum containing information about the sample.

Technological Innovation

The core technology of IRUBIS is the microstructured silicon crystal, an innovative sample carrier for ATR infrared spectroscopy.

IRUBIS ATR IR Infrared Crystal Sample Carrier