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Online Laboratory Magazine
09/22/2021

08/25/2021

The 60th birthday of a pipetting masterstroke

Eppendorf AG

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2021 marks a key milestone for anyone working in a lab. Sixty years ago, Eppendorf changed the ways of handling liquids forever by introducing the world's first industrially manufactured piston-stroke pipette. Launched in 1961, the Eppendorf 'Marburg Pipette' featured the same basic elements as those found in today's labs: a spring-loaded piston that stops precisely at a set volume level and a removable pipette tip made of plastic.

An ingenious mind takes on a problem

Until the 1950's, scientists transferred liquids via mouth-pipetting; a technique whereby the user would suck up liquids by mouth into thin glass tubes.

Not only were these pipettes routinely cleaned with dangerous chemicals such as sulfuric acid, but anecdotal reports also linked mouth-pipetting to the ingestion of hazardous substances, including a typhoid culture and even plutonium.

Eppendorf continues to develop
Fig.1: After the introduction of the first
'Marburg Pipette' in 1961, the piston-stroke
pipette from Eppendorf continues to
develop further.
Frustrated by the inadequacies of mouth-pipetting, German physician Heinrich Schnitger self-constructed a "device for the fast and exact pipetting of small liquid volumes" and filed a patent for it in 1958.

Eppendorf recognizes the potential

Eppendorf was the first to recognize the importance of Schnitger's invention and developed it further. This work culminated in the 'Marburg Pipette' - the world's first commercial piston-stroke pipette, launched by Eppendorf in 1961. Along with the first disposable tube for handling microliter volumes (the 'Eppi'), a microliter centrifuge and a thermo-mixer, the 'Marburg Pipette' formed Eppendorf's microliter system; a revolutionary toolset in many scientific disciplines that today defines the standard in research labs all over the world.

Further investments were made in the development of the piston-stroke pipette and in 1976, the Eppendorf Comforpette 4700 pipette was presented. This was the first pipette with automatic tip ejection, which eliminated the need to handle the used tip by hand, an important mechanism, especially when working with hazardous liquids.

The 'microliter system' from Eppendorf
Fig.2: The 'microliter system' from
Eppendorf: The holistic approach set new
standards in laboratories around the
world as early as 1963.
The Multipette® and Combitips® system, which Eppendorf launched in 1978, operates according to the direct displacement principle. With this device, it was possible for the first time to dispense a tip filling in several steps - which is still essential for efficient liquid handling and ubiquitous in many laboratories working with plates or vessel series. The current Multipette models are the most important direct displacement systems in Eppendorf's portfolio. They leave nothing of the quality of their predecessors and combine it with the latest innovations in pipette technology.

A promising future

An incredible 60 years has passed since Eppendorf launched the very first commercial piston-stroke pipette; a tool that has fundamentally revolutionized science. This pivotal moment means that Eppendorf's DNA is ingrained in every piston-stroke pipette manufactured since. However, the story does not end here. Eppendorf's commitment to providing the best liquid handling solutions continues to result in innovative designs that make the lab an ever-more efficient, safer and generally better place to be.

Multipette®/Combitips® system
Fig.3: The Multipette®/Combitips® system
quickly became very popular in laboratories.
Demand for innovative laboratory designs is ever-increasing as the ability to process high workloads quickly and reliably becomes ever more important. Nowhere is this more evident than in high-throughput analysis, a key theme of modern science that cuts across everything from clinical diagnosis to academic research. With ever-evolving technological advances, the analysis of hundreds or even thousands of samples is possible in any laboratory. This facilitates large-scale experiments in areas such as substance testing and drug screening. In addition, high-throughput analysis has become essential for clinical diagnostics and population-wide screening.

High-throughput analysis inherently requires the processing of hundreds or even thousands of samples. Ensuring accurate and precise performance typically requires many pipettes that need to be calibrated regularly to perform at peak performance. This is where cloud solutions such as VisioNize Lab Suite, come in, helping lab managers keep track of their instruments and samples and schedule the next pipette calibration with just a few clicks.

60 Years Pipette Anniversary

Today, Eppendorf customers can choose from a broad range of instruments, consumables, and services to suit their liquid handling needs and further accelerate their research.

To celebrate the occasion, Eppendorf has taken a look at how pipetting has evolved over the years and where we're headed for the future of liquid handling.


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