This section needs additional citations for verification. Please help improve this article by adding citations to reliable sourcesin this section. Unsourced material may be challenged and removed. ( July 2012) ( Learn how and when to remove this template message) P10– These tips are transparent (white). They have a volumetric range between 0.5 to 10 microlitres.

The first simple pipettes were made in glass, such as Pasteur pipettes. Large pipettes continue to be made in glass; others are made in squeezable plastic for situations where an exact volume is not required. Micro Pipette Calibration – Accumaximum". Archived from the original on 30 June 2013 . Retrieved 3 March 2016. To provide easy implementation into your existing instrumentation, TriContinent air displacement pumps feature the following: Pipettes are typically made of glass or plastic, and are designed to be chemically resistant to the liquids they are used to transfer. They can be made from borosilicate glass or plastic materials that can withstand changes in temperature and exposure to different chemicals. Pipette Accuracy

Great for use in microplate applications, multichannel pipettes are ideal for small scale applications and repetitive tasks. Most feature between 8 to 12 heads and allow scientists to transfer multiple liquid samples using a single device. A zeptoliter pipette has been developed at Brookhaven National Laboratory. The pipette is made of a carbon shell, within which is an alloy of gold-germanium. The pipette was used to learn about how crystallization takes place. [10] Pipette aids [ edit ]

These pipettes operate by piston-driven air displacement. A vacuum is generated by the vertical travel of a metal or ceramic piston within an airtight sleeve. As the piston moves upward, driven by the depression of the plunger, a vacuum is created in the space left vacant by the piston. The liquid around the tip moves into this vacuum (along with the air in the tip) and can then be transported and released as necessary. These pipettes are capable of being very precise and accurate. However, since they rely on air displacement, they are subject to inaccuracies caused by the changing environment, particularly temperature and user technique. For these reasons, this equipment must be carefully maintained and calibrated, and users must be trained to exercise correct and consistent technique. A plastic pipette is a disposable pipette. You can not use it again and again just like a glass pipette. As they are used for the transfer of liquids that are infected so these pipettes are discarded after use to maintain biosafety protocols. The micropipette was invented and patented in 1960 by Dr. Heinrich Schnitger in Marburg, Germany. Afterwards, the co-founder of the biotechnology company Eppendorf, Dr. Heinrich Netheler, inherited the rights and initiated the global and general use of micropipettes in labs. In 1972, the adjustable micropipette was invented at the University of Wisconsin-Madison by several people, primarily Warren Gilson and Henry Lardy. [5] TriContinent pipetting pumps fully comply with ISO 13485 certification guidelines. They follow industry standard protocols to offer complete compatibility. Their lightweight and compact size allow you to save space when designing your OEM instrument. A Wealth of Options SciPette, our own brand of liquid handling products, has built a strong reputation for quality, durability, ergonomics and affordability among other serological pipettes and pipettors on the market. Starting with basic pipette pumps and manual pipettors, our range also covers fully digital pipettors, micropipettors and automatic liquid dispensing systems.When pipetting volatile liquids, be sure to pre-wet the tip and use fast pipetting speeds for both aspiration and dispensing to minimize the effects of evaporation. Do not pause unnecessarily between aspiration and dispensing and use reverse pipetting to further reduce the effect of evaporation on the actual volume to be delivered. A graduated pipette commonly used in medical technology with serologic pipettes for volumetric analysis. Invented by Donald Dexter Van Slyke. [6] Ostwald–Folin pipette [ edit ] The use of an internal motor regulates the rate of air displacement and dispersion force, which helps reduce barrel contamination and prevent the formation of air bubbles. They can be pre-programmed to suit specific laboratory tasks which increases efficiency. Electronic pipettes also offer adjustable tip spacing, which allows scientists to simultaneously transfer multiple samples. Designed with precision in mind, micropipettes allow scientists to accurately extract, transport and dispense liquids in the microlitre range. Micropipette capacity ranges from between 1 and 1000 microlitres. Macropipettes are designed for larger quantities and offer a capacity range of between 0.25–5 mL. Lab pipette types Better precision and accuracy – as they are less operator-dependent. You can also save pipetting protocols to reduce manual errors and prevent operator-to-operator variability.