Maximising reproducibility and sample recovery - with epT.I.P.S. LoRetention

22 Sept 2008
Kerry Parker
CEO

Product news

Eppendorf AG completes the Totally Integrated Pipetting System portfolio with epT.I.P.S. LoRetention, featuring ‘Pearl Effect’ surface technology to ensure maximum sample recovery when dispensing detergent solutions.

epT.I.P.S. LoRetention meet a strong market demand from users engaged in PCR, real-time PCR, proteomics and molecular biology applications. As liquids containing detergents wet polypropylene, a film remains on a standard tip’s surface following pipetting. This leads to loss of precious sample material, increased consumption of expensive reagents, and poor precision and reproducibility.

Unlike some manufacturers’ low retention tips, epT.I.P.S. LoRetention have no coating or additive which might affect or bleed into the sample. Instead, Eppendorf’s ‘Pearl Effect’ technology renders the tip surface ultrahydrophobic through a modification at the molecular level. As a result, detergent solutions simply roll off completely and sample is not lost. epT.I.P.S. LoRetention can therefore deliver cost reductions of up to 5% – giving significant savings when using expensive reagents such as qPCR and PCR master mixes.

The ultrahomogenous surface of epT.I.P.S. LoRetention ensures maximum precision and reproducibility, preventing the formation of air bubbles and foaming during pipetting. Data comparisons with competitor products, showing that epT.I.P.S. LoRetention have the lowest residual liquid as well as higher chemical resistance and stability against autoclaving, are included in the product brochure.

epT.I.P.S. LoRetention are available in the same convenient packaging, quality grades and dimensions as standard epT.I.P.S., while epT.I.P.S. LoRetention Dualfilter provide the best available sample protection against aerosol contamination.

Applications for epT.I.P.S. LoRetention include preparation of enzyme solutions and master mixes for PCR and real-time PCR; isolation, purification and denaturation of proteins; restriction digestions and ligations; pipetting DNA ladders during gel electrophoresis.

epT.I.P.S. LoRetention

Eppendorf

Increased sensitivity with maximum reproducibility Are you dependent on your precious samples? Then don’t leave any valuable residues in your tips when pipetting solutions that contain detergents! Based on a unique and innovative method of material modification, the new Eppendorf epT.I.P.S. LoRetention allow you to transfer almost 100 % of the liquid picked up – for maximum recovery with unbeaten precision. Particularly with sensitive PCR and real-time PCR applications, low-retention surfaces can increase reproducibility and notably reduce the loss of expensive reagents – depending on the reagent solution by up to 5 %! The “Pearl Effect” The ultrahydrophobic, extremely homogenous surface of the epT.I.P.S. LoRetention is achieved through an innovative treatment at the molecular level – the Pearl Effect Technology. The tips are uncoated and free from additives, thus nothing can bleed into the sample. Liquids roll off completely, so that almost no sample remains in the tip. In comparison, the adhesive layer of liquid in standard tips retains considerably more sample material. For users of the new epT.I.P.S. LoRetention, this unique material property guarantees maximum sample recovery, improved reproducibility and higher sensitivity.

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ElectrophoresisElectrophoresis equipment is used to separate mixtures of protein, DNA or RNA, based on their electric charge, size and other physical characteristics, by passing them through a medium such as a polyacrylamide gel, an agarose gel or a capillary tube. Electrophoresis equipment includes horizontal and vertical gel electrophoresis chambers, isoelectric focusing systems, 2D electrophoresis and capillary electrophoresis instruments. Precast gels with a gradient can be used or gels can be hand cast. Samples are run alongside ladders or markers to identify the approximate size of a molecule. Separated proteins and nucleic acids in the gel can be stained or probed with fluorescent markers and then imaged and detected using gel documentation instruments, transilluminators, densitometers and scanners. Find the best electrophoresis equipment in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.ProteomicsProteomics is the systemic bioinformatics study of proteins and amino acids, including their structure, size, function and identification. Tools used in proteomics include chromatography, blotting and gels, protein arrays, mass spectrometry and ELISA and associated analysis software. Analyzers and proteomic systems should be sensitive, high resolution, fast and may be automated for high-throughput.PCR and Thermal CyclingPolymerase chain reaction (PCR) kits and thermal cyclers are used for the in vitro amplification of DNA permitting subsequent analysis and experimental procedures. Explore a range of high-quality polymerase, primers and nucleotides or simplify your workflow with a PCR mastermix. Find reverse transcription PCR (RT-PCR) and cDNA synthesis kits for RNA products and libraries. Quantitatively measure the amplification of DNA with real-time PCR (qPCR) and droplet digital PCR (ddPCR) kits and systems, and discover automated PCR setup solutions to increase throughput. Alternative DNA amplification methods also include recombinase polymerase amplification (RPA) kits. Find the best PCR kits and thermal cyclers and purification equipment in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Pipettes and DispensersPipettes and dispensers are essential lab equipment used to dispense measured volumes of liquid accurately. Explore a range of manual and electronic pipettes, including single and multichannel, serological and volumetric pipettes, as well as a range of pipette tips. Bottle-top dispensers are also available for simple and fast solvent dispensing. Find the best pipettes & dispensers in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.
Maximising reproducibility and sample recovery - with epT.I.P.S. LoRetention