Category: Application News

15th May 2014

New Video – Precise Over-Spotting on Preddator

accurate over spotting using PreddatorA new video has been added to the site highlighting Preddator’s ability to achieve high levels of precision both for the volume aliquoted and for positional accuracy.

In this application the end user wished to be able to accurately over spot aliquots of solution onto Drosophila cells contained in 384 well plates.

The new video and a description can be found on our videos

Page or simply click the link here

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7th November 2013

Preddator at LRIG New England Fall Meeting

Redd&Whyte Preddator at LRIG

LRIG New England is a rapidly growing special interest group focused on laboratory automation. Membership consists of scientists and engineers, primarily from the pharmaceutical and biotechnology industry, with chapters across the US and in Europe.

LRIG New England’s annual one day Fall Seminar and Exhibition will be held at the Boston Marriott Cambridge Hotel on November 14. The meeting will include an exhibition and various workshops one of which covers optimization of Redd&Whyte’s Preddator reagent dispenser.

Applying Volume Measurement Information to OPTIMIZE Liquid Handler Methods: Specific Examples Include a Biomek, Bravo and Preddator, will be presented by Keith Albert, Senior

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10th September 2013

Verifying dispensing performance & optimizing accuracy on a Redd&Whyte Preddator nano-bulk reagent dispenser using the Artel MVS®

Nano Bulk Reagent dispenser DropletsThis application note discusses an approach to verify and optimize the dispensing accuracy on a Redd & Whyte Preddator1 dispenser using measurement information from the Artel MVS®. The Preddator is able to dispense any number of liquid types and the MVS supports verifying both tip-to-tip precision and accuracy values for nearly all liquid handlers.2,3 The focus of this application note is on volume verification and subsequent optimization; it does not speak to the quality of volume transfer performance you should expect from any Preddator. Pipetting accuracy can be improved in multiple ways on the Preddator, such as by adjusting

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29th October 2012

Preddator achieves amazing dispensing accuracy at 500 nl

Redd&Whyte’s Preddator recently underwent rigorous microplate dispensing accuracy and performance checks with the NIST-approved Artel Calibration system.

The Preddator achieved impressive results for its accuracy and precision, including extremely low coefficients of variation (CV) for all channels.

Can your dispenser beat 0.69% CVs at 500 nl, across 384-well plates?

Contact us now to see how the Preddator’s superior precision and accuracy could improve your assay data, and benefit your research.…

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3rd September 2012

New Software Update: flying reagent dispenser and new valve calibration

The Preddator S4’s software has recently been updated with on-the-fly dispensing functions. The Preddator’s high precision solenoid dispensing valves allow for faster dispensing to any rectangular shaped region. This update allows 500nl to be dispensed to an entire 384-well plate in 9 seconds, and 200nl can be dispensed to a 1,536-well plate in just 26 seconds.

Flying Reagent dispenser

In addition, the valve calibration procedure has also been enhanced to allow calibration profiles for each valve, resulting in improved dispensing performance. A single calibration at a designated “master” volume allows the calibration to be checked frequently, and can easily be updated if necessary, …

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29th August 2012

Introducing the New Preddator Rinse Station

Redd&Whyte have developed a rinsing station for their popular Preddator S4 which now has expert rinse and cleaning capabilities.

The new and improved rinse station allows the Preddator’s high precision dispensing valves to be cleaned at a rapid speed using a rinse solution, and an air-blade to dry the valves, before or after dispensing.

This is ideal when dispensing reagents that are prone to precipitating, such as buffers, or any other sample media that could cause clogging. As a result, the dispensing performance is maintained each time a plate is run.

The rinse station consists of a trough with 4 …

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