![]() ![]() In other words, the trueness of a measurement to the true value depends on the interplay of the elements in the system. Pipetting accuracy is the ability of a pipette to deliver the volume specified on the volume setting. Positive displacement pipettes work on a similar principle, however the tip of the positive displacement system contains its own piston and hence there is a minimal air cushion between the piston (that is part of the tip) and the liquid surface. Pressing down on the plunger that has a tip full of liquid expels the liquid out from the tip this is called dispensing. Since the piston in a pipette is a long way from the liquid sample, the air cushion between the piston and liquid can have a number of effects on the accuracy of this process, depending on the liquid type. When the piston is depressed and then slowly released, the movement of the piston creates a vacuum in the pipette tip and thus draws liquid up inside the tip which is called aspiration. Modern pipettes, also known as micropipettes, work with a piston-stroke principle – liquid is measured using the piston-cylinder system in the handle of the pipette. volatiles like alcohol), while air-displacement pipettes can be used for a majority of laboratory applications. Positive displacement pipettes are commonly used for samples of high viscosity (e.g. There are two types of pipettes: Positive displacement and air pipettes. User skills and knowledge (theory of applications, technologies, methods, tips and tricks).Time reduction quick adjustment and scalability of methods.Sustainable design (futureproof modular design long lasting).Shift to the next level measurement process (from manual to automated, or to on-line measurement automation). ![]() Reduction in operating costs Total cost of ownership Maintenance cost reduction.Productivity (released time from the team) Uptime Optimize processes. ![]()
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