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Carl Roth, the expert consultation for labware, life science and chemicals for more than 140 years. With around 30,000 articles available and a round-the-clock delivery service within Germany, we are the partner that research, scientific and technical laboratories can rely on. Furthermore, we devel more
Hahnemuehle has been known for its distinguished, high quality Filter Papers for more than 130 years. In the past these worldwide, well recognised papers were sold by Schleicher & Schuell all over the world and are used as the standard for laboratory filtration. Hahnemuehle, formerly part of the Sch more
New lithium collection method could boost global supply
With continual technological advancements in mobile devices and electric cars, the global demand for lithium has quickly outpaced the rate at which it can be mined or recycled, but a University of Texas at Austin professor and his research team may have a solution. Benny Freeman, professor in the Mc more
Fixing by Filtration
Many heavy metals are toxic to the environment or to humans. Legal limits for these pollutants in drinking water and run-off are thus correspondingly low. Rapid on-the-spot analysis and routine water quality tests demand a rapid, cost-effective method that doesn't require complex instruments. Test s more
3M to Acquire CUNO
3M and CUNO Inc. announced that they have entered into a definitive agreement for 3M's acquisition of CUNO in an all cash merger for $72 dollars per share, valuing the transaction at approximately $1.35 billion including the assumption of $60 million of existing net debt. CUNO is a leader in the des more
Application-specific Membrane Prefilters for Highly Efficient Processes in Biopharmaceutical Production
New medicines and diagnostics on the one hand and rising cost pressure as a result, for example, of the launch of generics and biosimilars on the other mean that new, highly efficient methods are required in biopharmaceutical production. In order to more
Filter Integrity Testing
The integrity testing of sterile filters constitutes a critical and mandatory regulatory step in biopharmaceutical production processes. However, performing such filter integrity tests costs time. Indeed, it can take a good 20 to 30 minutes to perfor more
A Flow‐through Column Electrolytic Cell for Supercritical Fluid Chromatography#
A novel flow‐through column electrolytic cell was proposed as a detector to obtain current signals for supercritical fluid chromatography. The electrochemical cell consisted of two electrodes and its holder, and a working and a counter electrode were fabricated from 192 carbon strings, which were more
Heads you win, tails you lose: filtration processing for the microscopical examination of sperm heads
Summary The sperm head plays a key role in many fertilisation events and determining the precise location of molecules within the head region is important in mechanistically dissecting the fertilisation process. Such molecules may be present in low copy number and many sperm head profiles must b more
Does adsorption of dissolved organic carbon and thorium onto membrane filters affect the carbon to thorium ratios, a primary parameter in estimating export carbon flux?
Publication date: 20 August 2016 Source:Marine Chemistry, Volume 184 Author(s): Kuanbo Zhou, Kanchan Maiti, Minhan Dai, Shuh-Ji Kao, Ken Buesseler The particulate organic carbon (POC) to 234Th ratio, or POC/234Th, is crucial to constrain the 234Th-derived downward export flux. Marine more