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Just Released: Electronic Pipettes That Enable Calibration By Weight (mg) As Well As By Volume (μL)

Obviously, one of the greatest benefits that electronic pipettes bring is the fact that the dispensed quantities will not vary with each individual. The high precision stepping motor automatically moving the piston up and down realizes uniform pipetting for both novice and expert alike, making the results of analyses always reliable.

Meanwhile, many researchers still have their pipettes inspected and calibrated by an outside facility – once a year, or perhaps twice a year, depending on their workplace policies. Even with electronic pipettes, this kind of practice bears the potential risk of compromising the validity of a year''s worth of data if, say, an annual calibration showed that they might have been using inaccurate pipettes all along.

The MPA series can solve this problem by allowing researchers to perform calibration at their own location whenever they want (patent pending). Deviations in dispensing volume, if any, can easily be corrected by directly inputting the actual dispensed volume measured using an analytical balance. (For this, A&D also offer pipette accuracy testers, which automatically perform mass-to-volume conversions.) Moreover, since this function also corrects errors arising from tip characteristics, it is possible for researchers to use other manufacturers'' tips they prefer and still ensure accurate pipetting.

In addition to the volume (μL) calibration, the MPA series enable calibration and display based on the weight of the sample liquid (patent pending). With the pipette showing the dispensing amount in “mg” units, it becomes much simpler to handle liquids that need to be managed by weight, such as diluted solutions of solids or powders, as there is no hassle of density calculation. Further, this method lets researchers control more precisely the dispensing amounts of high-viscosity liquids, which are prone to error with normal volume calibration that uses purified water as the test liquid.

Four models are included in the MPA series: MPA-10 (0.5 to 10.0 μL), MPA-20 (2.0 to 20.0 μL), MPA-200 (10 to 200 μL) and MPA-1200 (100 to 1200 μL).

Please visit the A&D website to find other unique benefits that the MPA series provides.

Details

  • A&D COMPANY, LIMITED

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