The Horizon™ multiple reflection ATR accessory is well suited for analysis of liquids, pastes, powders, and thick films by infrared spectroscopy. Its unique design utilizes the astigmatism inherent in spherical mirrors to shape the FT-IR beam to match the aperture of the ATR crystal, keeping radiation away from the edges of the crystal. This eliminates spectral interference from the adhesive securing the crystal and results in higher throughput. The Horizon™ features a convenient horizontal sampling surface (HATR) and PermaPurge™ for rapid sample and crystal exchange without interrupting the purge of the FT-IR system. The Horizon™ is perfect for quality control and research applications. Optional cells are available for flow and temperature-controlled applications.