Evaluation of Aegys MI 600 Fourier Transform Infrared Milk Analyzer for Analysis of Fat, Protein, Lactose, and Solids Nonfat: A Compilation of Eight Independent Studies

The Aegys Mi 600 Fourier transform-infrared milk analyzer was evaluated for performance in 8 independent laboratories in Europe, the United States, and Australia. This instrument, equipped with a mid-infrared source, a temperature-controlled transmission flow cell or cuvette, and detection device, uses interferometry for wavelength generation; multilinear regression was used to create calibration equations for measurement of fat, protein, lactose, and solids nonfat. Each instrument was tested independently for various performance criteria including but not limited to accuracy in calibration and validation, repeatability, and purge efficiency. Mean difference for accuracy and standard deviation of differences for accuracy observed in each laboratory were well within AOAC requirements (