This application note describes how hand-held Agilent FTIR analyzers are optimized for geological sample measurements, including the integrated diffuse reflectance sample interface. The instrument can be used on samples in the field, with little or no sample preparation. FTIR provides information about how the elements are bonded to form a mineral’s chemical composition. When used in conjunction with x-ray fluorescence analyzers, which determine what elements are present, geoscientists are equipped with a powerful onsite identification system.
Agilent handheld FTIR analyzers, such as the 4100 ExoScan, are optimized for measuring rocks, minerals, and soil in the field with little to no sample preparation. These instruments utilize an integrated diffuse reflectance sample interface to obtain molecular spectra directly from specimens. FTIR provides information on how elements are bonded to form a mineral's chemical composition, serving as a natural complement to X-ray fluorescence (XRF) analyzers which determine elemental presence.
The analyzer is optimized for measuring rocks, minerals, and soil with little or no sample preparation.
It provides information about how elements are bonded to form a mineral's chemical composition.
Sharp 'Free OH' stretching bands appear between 3700 and 3600 cm⁻¹.