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We're sorry to hear you're having trouble with a stuck filter. Here's how to safely address the issue: 1. For Tacta® and Mline® Pipettes: These models feature a built-in filter ejection system designed to remove filters easily. Please refer to the specific instructions in the user manual to use this feature effectively. 2. For Proline® Plus and Picus® Pipettes, or if the Ejection System Fails on Tacta® and Mline® Models: We strongly advise against attempting to manually remove the stuck filter as this could potentially damage the cylinder and tip cone. Instead, please contact Sartorius service or an authorized service partner for professional assistance. They are equipped to safely resolve the issue without risking damage to your pipette. Your pipette's performance and longevity are our priority, and we're here to ensure you receive the best support. Thanks for reaching out!

@@SartoriusGlobal I had to give it to the lab engineer and he used an air compressor to expell the stuck prolipropilene filter. However, thank you for answering! I really appreciate it. I hope a video comes out eventually, as there is basically NO information on how to troubleshoot a stuck filter.

Thank you for your question! It's polyethylene. You can find more information about our pipette tips in this pdf: www.sartorius.com/resource/static/celum/26842/Pipette-Tips-Chemical-Resistance-Chart-Flyer-en-L-Sartorius.pdf

Hallo, danke für die Frage und das Interesse an einer Ausbildung bei Sartorius. Die Vergütung während und nach der Ausbildung hängt vom Standort ab, in Göttingen gilt beispielsweise der Tarif der IG Metall und in Guxhagen der Tarif der IGBCE. Details zur Ausbildungsvergütung für unsere verschiedenen Standorte und alle offenen Ausbildungsstellen gibt es hier: www.sartorius.com/en/company-de/career-de/schueler-azubis

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Thank you for your message. For ultrafiltration, it is not essential to use a closed feed reservoir. The retentate pressure can depend on a variety of factors, including feed flow rate, sample characteristics, and the chosen membrane MWCO. A low pressure reading should not be cause for concern provided that there is a consistent flow of permeate exiting from the cassette. If you have any further questions or would like to discuss this further, please fill in our form and one of our TFF experts will get back to you: www.sartorius.com/en/products/lab-filtration-purification/ultrafiltration-devices/tangential-crossflow?mrksrc=social&

Thanks for your comment! There are more videos on our playlist if you're interested: kzbin.info/aero/PL7wUdfVJXkoAmyNvdI-UEIasCcyfyymJi

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Thank you for your comment! Please visit our website: www.sartorius.com/en/company/careers/vacancies-job-opportunities

Thrilled to see your interest in the Picus® 2! 🌟 We have an exciting trade-in program where you can exchange your old pipette for a brand new Picus® 2 at a 40% discount. It's a perfect opportunity to upgrade to our latest pipetting technology. For more information on how to avail this offer, please feel free to contact us here: www.sartorius.com/en/products/pipetting/pipetting-promotions/pipette-trade-in-program Happy pipetting! 💧

Thank you for your kind words! We're glad you found the presentation insightful. It's always our aim to encourage thoughtful discussions and fresh perspectives in the scientific community. 😊

Thrilled to see your interest in the Picus® 2! 🌟 We have an exciting trade-in program where you can exchange your old pipette for a brand new Picus® 2 at a 40% discount. It's a perfect opportunity to upgrade to our latest pipetting technology. For more information on how to avail this offer, please feel free to contact us here: www.sartorius.com/en/products/pipetting/pipetting-promotions/pipette-trade-in-program

Thank you! We're thrilled you enjoyed the video. Stay tuned for more informative content like this! 🎩🔬

Thank you! We're glad you liked our video. Keep watching for more exciting science insights! 🌟

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Thank you for your positive feedback! We're delighted to hear that you found the video informative.

Thank you for such high praise! We'll pass along your Nobel Prize endorsement to our dedicated team! 🌟

Thank you for your positive feedback! We're delighted to hear that you found the presentation informative.

Dispense the aliquot from air -> less contamination risk -> able to return the excess to source vessel. Downside is that dispensing in air is more challenging, and can lead to inconsistent results if the operator is not extremely careful, also liquid properties might make this more challenging as well. Use electronic pipette which allows them to adjust the excess amount. This way they can minimize the waste.

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Thank you for your comment! Please request a quote on our website: www.sartorius.com/en/products/lab-filtration-purification/syringe-filters

Apologies for the delayed response! While fractionation by ultrafiltration can be possible, we typically recommend that there is at least a 10-fold molecular weight (MW) difference between the substances to be separated, to achieve the most efficient separation. This is because separation by ultrafilters is primarily only achieved based on the nominal pore sizes of the membranes. With smaller MW differences, you would likely observe at least some level of cross-over between fractions, in which case using another approach such as size exclusion chromatography is more likely to provide better results.