An external reflectance measurement using FTIR requires a reference sample to collect the background measurement. The reference sample is a disk that snaps onto the tip of the reflectance probe.
A range of reference caps are available, each designed to handle a different purpose for the type of sampling interface and sample being measured
A catalog and ordering guide showing a wide range of Agilent atomic absorption, ICP-MS, ICP-OES, MP-AES products, as well as UV-Vis, fluorescence, and autosampler supplies.