Results 61 to 70 of about 57,188 (237)

Mixed‐mode chromatography/isotope ratio mass spectrometry

Rapid Communications in Mass Spectrometry, 2010
Abstract Liquid chromatography coupled to molecular mass spectrometry (LC/MS) has been a standard technique since the early 1970s but liquid chromatography coupled to high‐precision isotope ratio mass spectrometry (LC/IRMS) has only been available commercially since 2004.
openaire   +3 more sources

Bias‐Triggered Conductivity Relaxation (BCR): A Unique Tool to Simultaneously Investigate Thermodynamics, Kinetics, and Electrostatic Effects of Oxygen Reactions in MIEC Thin Films

Advanced Materials, EarlyView.
This work develops bias‐triggered conductivity relaxation as a novel technique to study oxygen reactions in mixed ionic‐electronic conducting thin films by integrating electrochemical titration and electrical conductivity relaxation to achieve synchronous multi‐parameter characterization, providing simultaneous electronic, ionic, and extraordinarily ...
Alexander Stangl, Alexander Schmid, Adeel Riaz, Jürgen Fleig, Arnaud Badel   +4 more
wiley   +1 more source

The Evolution of Aerosol Jet Printing, A Review: Enhancing Material Versatility and Improvements for Next‐Generation Applications

Advanced Materials Technologies, EarlyView.
Aerosol Jet Printing (AJP) has emerged as a versatile additive manufacturing technique for high‐resolution, conformal, and multi‐material printing. This review highlights advances in printable materials, substrate compatibility, post‐processing, characterization, and process innovations, while critically discussing current challenges and future ...
Chandrachur Chatterjee, Rocco Lupoi, Michael J. Gibbons   +2 more
wiley   +1 more source

A Bifunctional T3SS‐Effector Simultaneously Cleaves Host MAP Kinase and Inhibits PPM1A Phosphatase

Advanced Science, EarlyView.
Pathogenic bacteria exploit the metalloprotease effector NleD to subvert host defenses. Structural, biochemical, and infection analyses reveal a bifunctional mechanism by which NleD binds and inhibits the host phosphatase PPM1A while preserving its proteolytic activity against MAPKs.
Yaakov Socol, Lihi Gur‐Arie, Netanel Tzarum, Tamara Wellins, Naama Katsowich, Miriam Ravins, Michal Bejerano‐Sagie, Klil Cohen, Oded Livnah, Joshua N. Adkins, Ernesto Nakayasu, Alexei Savchenko, Yeu Khai Choong, Nikhil Kumar Tulsian, Saturo Machida, Sigal Ben‐Yehuda, Yael Litvak, J. Sivaraman, Ilan Rosenshine   +18 more
wiley   +1 more source

Origin and depositional environments of source rocks and crude oils from Niger Delta Basin: Carbon isotopic evidence

China Geology, 2020
: Thirty-nine crude oils and twenty-one rock samples from Niger Delta Basin, Nigeria have been characterized based on their isotope compositions by elemental analysis-isotope ratio mass spectrometry and gas chromatography-isotope ratio mass spectrometry.
Abiodun B Ogbesejana, Oluwasesan M Bello, Tijjani Ali   +2 more
doaj   +1 more source

Isotope ratio - Mass spectrometry

, 2012
This article summarizes the configurations involving isotope ratio mass spectrometry (IRMS) technology available at the CCiTUB and the wide range of possible applications. Some examples of these applications are shown.
Marimon Corbella, Rosa Maria, Perona Moreno, Joaquim, Teixidor Casamitjana, Pilar   +2 more
openaire   +1 more source

In Vivo Microplastic Detection With Photoacoustic Imaging

Advanced Science, EarlyView.
ABSTRACT Microplastics are posing an escalating threat to both ecological systems and human health. Yet, current methods for investigating their bioaccumulation are highly invasive, requiring destructive analysis of ex vivo tissues via mass spectrometry, dye labelling, or Raman microspectroscopy.
Joseph C. Bear, Olumide Ogunlade, Jayvian Mavi, Emily J. Deniszczyc, Daolong Chen, Heeva Javaheri, Paul Beard, Mark F. Lythgoe, Daniel J. Stuckey, P. Stephen Patrick   +9 more
wiley   +1 more source

Chapter 6 Mass spectrometry: Isotope ratio mass spectrometry

, 1997
Publisher Summary This chapter focuses on isotope ratio mass spectrometry (IRMS). IRMS determines the ratio of isotopes of a given element, such as H: 2 H and 12 C: 13 C present in a specimen. The total amount of each isotope also is determined.
openaire   +1 more source

Climate Change Threatens Micronutrient Density of European Winter Wheat

Advanced Science, EarlyView.
Micronutrients are vital for human health. Wheat is a major staple crop and a significant source of minerals and B‐vitamins. The impact of climate change on their content remains largely unknown. We evaluated micronutrient levels in European winter wheat grown under historical and projected climate conditions. Our findings indicate that future climates
Da Cao, Jennifer Michel, Eline Lorer, Markus Weinmann, Jacques Le Gouis, Claire Léon, Sibille Perrochon, David Alvarez, Vincent Leemans, Iñaki Balanzategui Guijarro, Jordi Moya Laraño, Sara Sánchez Moreno, Symanczik Sarah, Waibel Matthias, Hervé Vanderschuren, Cécile Thonar, Pierre Delaplace, Dominique Van Der Straeten   +17 more
wiley   +1 more source

Provenancing Flower Bulbs by Analytical Fingerprinting: Convallaria Majalis

Agriculture, 2015
The origin of agricultural products is gaining in appreciation while often hard to determine for various reasons. Geographical origin may be resolved using a combination of chemical and physical analytical technologies. In the present case of Lily of the
Saskia M. van Ruth, Ries de Visser
doaj   +1 more source