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Displaying 26 - 50 of 136

Viscometric Detection in Size-Exclusion Chromatography: Principles and Select Applications

August 1, 2016
Author(s)
Andre M. Striegel
… Size-exclusion chromatography (SEC) has benefitted from commercially-available on-line … is to demonstrate the power of viscometry detection in SEC, through applications which showcase the extreme or, … thus followed by examples of the role of viscometry in the SEC characterization of, among others, solutions with …

A Round-Robin Approach Provides a Detailed Assessment of Biomolecular Small-Angle Scattering Data Reproducibility and Yields Consensus Curves for Benchmarking.

November 1, 2022
Author(s)
Jill Trewhella, Patrice Vachette, Jan Bierma, Clement Blanchet, Emre Brookes, Srinivas Chakravarthy, Leonie Chatzimagas, Thomas Cleveland, Nathan Cowieson, Ben Crossett, Anthony P. Duff, Daniel Franke, Frank Gabel, Richard E. Gillilan, Melissa Graewert, Alexander Grishaev, Jules M. Guss, Michal Hammel, Jesse Hopkins, Qingqui Huang, Jochen S. Hub, Gregory L. Hura, Thomas C. Irving, Cy M. Jeffries, Cheol Jeong, Nigel Kirby, Susan N. Krueger, Anne Martel, Tsutomu Matsui, Na Li, Javier Perez, Lionel Porcar, Thierry Prange, Ivan Rajkovic, Mattia Rocco, Daniel J. Rosenberg, Timothy M. Ryan, Soenke Seifert, Hiroshi Sekiguchi, Dmitri Svergun, Susana C. Marujo Teixeira, Aurelien Thureau, Thomas M. Weiss, Andrew Whitten, Kathleen Wood, Xiaobing Zuo
… batch mode and with in-line Size Exclusion Chromatography (SEC) were made using SAXS and SANS, in H 2 O and D 2 O buffers. In-line SEC measurements proved generally superior to batch … heterogeneity. Careful merging of data measured using SEC-SAS and batch SAS modes, or low- and high-concentration …

High Resolution Length Fractionation of Surfactant Dispersed Carbon Nanotubes

December 23, 2012
Author(s)
Constantine Y. Khripin, Xiaomin X. Tu, Jeffrey A. Fagan, Ming Zheng
… required for many studies. Size- exclusion chromatography (SEC) has been reported as a reliable method for high … and quality problems. Here we describe the extension of SEC for high resolution length fractionation of bile salt … method can be readily overcome. Further, we use the new SEC method to length-fractionate bile salt dispersed SWCNTs …

The obstruction factor in size-exclusion chromatography. 2. The interparticle, intraparticle, and total obstruction factors

April 17, 2012
Author(s)
Andre M. Striegel, Dustin Richard
… factors operative in size-exclusion chromatography (SEC). Stop-flow experiments were employed to determine either … interactions between the analytes and stationary phase, in SEC gamma(s) is approximately equal to 0, which allows for … between gamma(t), gamma(e), and gamma(p) was proposed for SEC, based on previous independent work and dependent upon …

NIST Measurement Services: Specular Gloss

May 15, 2006
Author(s)
Maria E. Nadal, E A. Early, E A. Thompson
… uncertainty analysis of the instrument are described in Sec. 3. In Sec. 4 the new primary specular gloss standard and its …

Infrared Optical Properties of Materials

February 24, 2015
Author(s)
Simon G. Kaplan, Leonard M. Hanssen, Raju V. Datla
… calibration service report for customers is provided in Sec. 5 and references are added in Sec. 6. …

Quantitative characterization of gold nanoparticles by size-exclusion and hydrodynamic chromatography, coupled to inductively coupled plasma mass spectrometry and quasi-elastic light scattering

July 14, 2017
Author(s)
Leena M. Pitkanen, Antonio Montoro Bustos, Karen E. Murphy, Michael R. Winchester, Andre Striegel
… range in mean size. The main problem which has plagued the SEC analysis of Au NPs, namely lack of quantitation … we demonstrate the quantitative analysis of Au NPs by SEC/ICP-MS, including the analysis of ternary NP blends. The SEC separations are contrasted to HDC/ICP-MS separations …

Chromatographic Separation of Single Wall Carbon Nanotubes

October 16, 2008
Author(s)
Barry J. Bauer, Vardhan Bajpai, Jeffrey Fagan, Matthew Becker, Erik K. Hobbie
… Size exclusion chromatography (SEC) has been used to separate single wall carbon nanotubes … which can provide information on the size and shape of the SEC fractions. The dispersions were also characterized by …

Protein Translocation Activity in Surface-Supported Lipid Bilayers

August 25, 2019
Author(s)
Kanokporn Chattrakun, David Hoogerheide, Chunfeng Mao, Linda L. Randall, Gavin M. King
… Employing the translocase from the general secretory (Sec) system of E. coli as a model, here we quantify activity … (ATP hydrolyzed per residue translocated) of the Sec system was only reduced 2-fold on glass compared to … activity was maintained for the surface-adsorbed Sec system, albeit with a slower rate-limiting step. More …

Caveats Regarding the Solvent/Non-solvent and SELS Approaches in Size-Exclusion Chromatography and Related Methods

July 14, 2012
Author(s)
Andre M. Striegel, Kelsey McNeel, Dustin Richard
… popular, approach to the size-exclusion chromatography (SEC) and related analysis of polymers that do not dissolve in … that are employed as mobile phases in high-throughput SEC systems) is to dissolve these analytes in a different … solvent and to then inject this solution onto the SEC system which employs a non-solvent as mobile phase. A …
Displaying 26 - 50 of 136
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