Featured Articles and Downloads

1. Ultrafiltration Of Various Biological Nanoparticles And Medical Nanocarriers 10/25/2021

   This short review outlines ultrafiltration of various biological nanoparticles and medical nanocarriers. Here, ultrafiltration is used to purify, concentrate and separate nanoparticles from substrates. The nanomaterials discussed comprise metals, polymers, lipids (in vesicles and micelles) and proteins. 

2. Retrieve Every Last Microlitre From Vivaspin Centrifugal Concentrators 10/25/2021

   Use of centrifugal concentrators for buffer exchange or sample concentration requires optimization of the protocol and correct handling of the device in conjunction with a pipette to ensure determination of the concentrated sample volume for accurate yield measurement. In this practical guide, we provide guidance on the efficient use of Picus® pipettes and extended length pipette tips with centrifugal concentrators.

3. Influence On Measurement Accuracy As A Function Of Sample Quantity With High Throughput Moisture Analyzers 10/25/2021

   Nearly all industries perform moisture analyses at some stage of production for quality assurance. This pharmaceutical industry application note demonstrates how a small increase in sample amount can help ensure correct and reliable measurements but must be balanced with cost and the desired measurement time.

4. Are You Compliant When It Comes To Pipetting? 10/25/2021

   When developing or testing your medical device, there is always the question: are you following methods for current Good Laboratory Practice (cGLP) or current Good Manufacturing Practice (cGMP)? If you follow this practical guide, you can have peace of mind on the topic of compliance.

5. Sensible Selection And Correct Handling Of Test Weights 10/25/2021

   Correct weight values are extremely important for weighing processes in production, as well as for (quality) analysis. But how can the balance user be sure that the weight shown on the display is the same as the mass of the substance being weighed?

6. Easy Transfer Of Liquids Into Bags Or Other Receiving Containers 10/25/2021

   Avoid transfer errors and sample loss using a simple to use and accurate filling system. The Cubis® II allows the operator to start the filling process using a touchscreen on the balance, but the balance signals the pump to stop when the target weight has been met.

7. ABCs Of Pipette Tip Purity 10/25/2021

   This downloadable document from Sartorius dives into contamination, what it is, and how to avoid it. Included, you will find a guide on how to choose products and FAQ on how to select the right pipette for your needs.

8. Ultrapure Water For Trace Analysis 10/25/2021

   The purity of the solvents used, primarily that of water, is a decisive criterion for interference-free and reproducible analysis by liquid chromatography and for the sensitivity of this method, especially for applications in trace analysis. Here, we demonstrate how Arium® Mini Plus ultrapure water is excellently suited for use in chromatography and mass spectrometry (MS).