A screening tool from the U.S. Department of Energy's National Renewable Energy Laboratory (NREL) eases and greatly quickens one of the thorniest tasks in the biofuels industry: determining cell wall chemistry to find plants with ideal genes.
The unusual behavior of complex fluids is part of our daily life: cake dough climbs up the stirring bar, ketchup becomes liquid when you shake it. Now, a team has developed a numerical model of such liquids. They describe it in an issue of "Physical Review Letters.”
A new paper advances scientific understanding of the structure and function of glycoproteins, in particular the number and positioning of sugars on them. Glycoproteins are membrane proteins that are often involved in human diseases.
The powerful venom of the saw-scaled viper Echis carinatus contains both anticoagulants and coagulants. These may be a source of potent drugs to treat human disease, finds a study in the open access journal Journal of Venomous Animals.
Native American hunter-gatherers living more than a thousand years ago in what is now northwestern California ate salmon, acorns and other foods, and now we know they also smoked tobacco—the earliest known usage in the Pacific Northwest.
The perennial stress-buster—a deep breath—could become a stress-detector. According to a pilot study in the Journal of Breath Research, there are six markers in the breath that could be candidates for use as indicators of stress.
You want to protect the Earth from asteroids? Where were you when the dinosaurs needed you? You want to be like Bruce Willis in that asteroid movie? Recent events have certainly highlighted the threat of asteroid strikes.
The February issue of Chromatography Techniques has a plethora of technical articles for any chromatographer or spectroscopy specialist. A large volume splitless injection method is described for the analysis of water with low detection limits, as well as sorbent sampling tips, imaging analysis for HPLC columns, a new FTIR method and much, much more.
FTIR has emerged as a viable alternative to gas chromatography for the qualitative and quantitative analysis of gases. Qualification and quantitation are performed from the wave numbers of the characteristic peaks and peak intensities of the measured gas.
If there was a method for packing material manufacturers to specify shape characteristics and for column manufacturers to inspect incoming materials against those specifications, manufacturing HPLC columns would become more predictable, less costly and exhibit consistent performance. Recent advancements in image analysis could provide the answer.
This article describes a method for the rapid and sensitive detection of 36 CEC analytes in less than 20 minutes per sample. This UHPLC MS/MS method was developed on an Agilent 1290 Infinity LC system coupled to an Agilent 6460 Triple Quadrupole LCMS system using both positive and negative electrospray ionization.
The flexibility to perform separations without pH, temperature or mobile phase restrictions arms chromatographers with powerful tools for tackling tough separations. The right combination of stationary and mobile phase is critical for generating the well-defined, sharp peaks that allow shorter run times.
Sampling using sorbent tubes for analysis by thermal desorption gas chromatography is ideal for a wide range of applications, from monitoring industrial air to odor profiling of foods. However, for those new to the area, the options available can make it difficult to decide how best to proceed.
A multitude of performance factors including dense gas CO2, small particle columns and mass spectrometry with UV detection are speeding up chiral separation methods development. Chirality plays a critical role in drug efficacy because enantiomers may have vastly different biological, pharmacological and toxicological properties.
Waters Corp., Milford, Mass., has published an all-new 212-page Beginner's Guide to Solid Phase Extraction (SPE). The book includes chapters on terms and calculations, methods development, troubleshooting, understanding how liquid chromatography makes SPE powerful, benefits of SPE, an extensive glossary of terms and numerous applications.