Matrix-F is a compact Fourier transform near-IR spectrometer from Bruker Optics Inc. that offers up to six fiber optic channels. State-of-the-art optics provide high sensitivity and stability for applications from raw material identification to quality control. Using built-in and external multiplexer options, a single instrument monitors up to 48 reactions. A variety of probe adaptations is available for determining analyte concentrations in liquid, emulsions, powders and pellets. Components are on prealigned mounts and can be quickly exchanged without realigning the optics. Online diagnostics monitor the electronics and consumable items.