Hitachi View Institution's Website 2 articles published in JoVE Biology Absolute Quantum Yield Measurement of Powder Samples Luis A. Moreno1 1Marketing and Applications, Hitachi High Technologies America In this video we will demonstrate measuring and calculating absolute quantum yield and chromaticity coordinates directly in powder samples using the Hitachi F-7000 Quantum Yield Measuring System. Biology Quantification of dsDNA using the Hitachi F-7000 Fluorescence Spectrophotometer and PicoGreen Dye Luis A. Moreno1, Kendra L. Cox1 1Life Sciences Group, Hitachi High Technologies America Demonstration of quantification of dsDNA using Molecular Probes PicoGreen dye and Hitachi F-7000 Fluorescence Spectrophotometer equipped with a microplate reader accessory.