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Instruments that measure ultraviolet and/or visible light absorbance of a sample; they are based on the Beer-Lambert law, which states that the concentration of a solute is proportional to the absorbance of the sample. Accessories available.
Holmium Filter Spectrophotometer calibration tools Use for testing spectrophotometer wavelength accuracy Calibrated from 200 to 700 nm Accuracy +/- 0.2nm Filter size 10 x 10 x 45 mm
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