Request InfoSherwood Scientific Ltd.Sherwood Scientific’s Model 420 and Model 425 dual-channel flame photometers now are supplied with free 420 BlueNotes software. This product launch enables the instruments to perform sample analyses outside the linear response range and facilitates measurement of all elements simultaneously. The software package increases the utility of these dual-channel flame photometers. The linear response range of the stand-alone instruments is extended to multipoint calibration, enabling analysis of a much wider range of sample concentrations. 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