420 BlueNotes Software

Sherwood Scientific Ltd.

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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. Another major change is that all elements – Na, K, Li for Model 420 and Na, K, Li, Ca for Model 425 – can be measured at the same time, rather than only two at once. If required, the operator can measure all elements simultaneously via the host computer’s on-screen, real-time display.

The company has also updated the firmware of both the 420 and 425 for enhanced performance, adding a Clinical 102 mode which measures Na, K and Li but is designed for the expected higher concentrations of potassium in urine. The disk includes a demonstration of how the software works with the instruments.

The operator can choose K or Li as an internal standard reference element. The “spot check” facility updates a previous multipoint calibration, thus adjusting for any drift when the internal standard facility is not in use, and allowing previously generated calibrations to be re-used.

The software requires a PC running Windows XP or later (not supplied) and is fully compatible with combinations of newly supplied dual-channel flame photometers, diluters and autosamplers.

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Published: November 2010