Search Results - "Striegel, André M"

On-line coupling of hollow-fiber flow field-flow fractionation and depolarized multi-angle static light scattering (HF5/D-MALS). Proof of principle by Striegel, André M.

“…•On-line coupling of HF5 to depolarized MALS is demonstrated.•HF5/D-MALS applied to study of a Teflon latex.•Depolarization ratio of latex measured…”
Get full text

Method development in interaction polymer chromatography by Striegel, André M.

“…Interaction polymer chromatography (IPC) is an umbrella term covering a large variety of primarily enthalpically-dominated macromolecular separation methods…”
Get full text

Size-exclusion chromatography of metal nanoparticles and quantum dots by Pitkänen, Leena, Striegel, André M.

“…•Size-exclusion chromatography (SEC) of metal nanoparticles (NPs) and quantum dots (QDs) is reviewed.•Problems associated with SEC analysis of NPs and QDs are…”
Get full text

Absolute molar mass determination in mixed solvents. 2. SEC/MALS/DRI in a mix of two “nearly-isovirial” solvents by Striegel, André M.

“…The accurate determination of polymer molar mass (M) averages and distributions via size-based separation methods employing mixed solvents remains one of the…”
Get full text

Characterizing Styrene Monomer and Oligomers by SEC/MALS/VISC/DRI by Striegel, André M.

“…Worldwide polystyrene (PS) production in 2020 was approximately 27 million metric tons, distributed among many nations, making it one of the most heavily…”
Get full text

Size-Exclusion Chromatography: A Twenty-First Century Perspective by Striegel, André M.

“…Now in its sixth decade, size-exclusion chromatography (SEC) remains the premier method by which to determine the molar mass averages and distributions of…”
Get full text

Congratulations to CHROMATOGRAPHIA’s Editorial Advisory Board Award-Winning Members by Striegel, André M.

Get full text

Absolute molar mass determination in mixed solvents. 1. Solving for the SEC/MALS/DRI “trivial” case by Striegel, André M., Sinha, Pritish

“…Size-exclusion chromatography (SEC) with on-line static light scattering, specifically multi-angle static light scattering (MALS), and differential…”
Get full text

Specific Refractive Index Increment (∂n/∂c) of Polymers at 660 nm and 690 nm by Striegel, André M.

“…The specific refractive index increment (∂ n /∂ c ) is an essential datum for the accurate quantitation of molar mass averages and distributions (inter alia)…”
Get full text

Introducing CHROMATOGRAPHIA’s Second Virtual Issue on Macromolecular Separations by Striegel, André M.

Get full text

Introducing Chromatographia Perspectives by Striegel, André M.

Get full text

Do column frits contribute to the on-column, flow-induced degradation of macromolecules? by Striegel, André M.

“…•Role of column frits in on-column, flow-induced polymer degradation was studied.•No degradation if frit pore radius is comparable to column hydraulic…”
Get full text

Entropic-Based Separation of Diastereomers: Size-Exclusion Chromatography with Online Viscometry and Refractometry Detection for Analysis of Blends of Mannose and Galactose Methyl-α-pyranosides at “Ideal” Size-Exclusion Conditions by Striegel, André M., Trainoff, Steven P.

“…The separation of carbohydrate diastereomers by an ideal size-exclusion mechanism, i.e., in the absence of enthalpic contributions to the separation, can be…”
Get full text

Hydrodynamic Chromatography by Striegel, André M, Brewer, Amandaa K

“…Hydrodynamic chromatography (HDC) has experienced a resurgence in recent years for particle and polymer characterization, principally because of its coupling…”
Get full text

Quantitative characterization of gold nanoparticles by size-exclusion and hydrodynamic chromatography, coupled to inductively coupled plasma mass spectrometry and quasi-elastic light scattering by Pitkänen, Leena, Montoro Bustos, Antonio R., Murphy, Karen E., Winchester, Michael R., Striegel, André M.

“…•Gold nanoparticle reference materials were characterized by SEC and HDC.•On-line ICP-MS and QELS employed.•Quantitative SEC and HDC separations were…”
Get full text

Introducing the Inaugural Chromatographia Virtual Issue: Macromolecular Separations by Striegel, André M.

Get full text

Multi-detector hydrodynamic chromatography of colloids: following in Hamish Small's footsteps by Striegel, André M.

“…Hamish Small, scientist extraordinaire, is best known as the inventor of both ion chromatography and hydrodynamic chromatography (HDC). The latter has…”
Get full text

Organic solvent modifier and temperature effects in non-aqueous size-exclusion chromatography on reversed-phase columns by Caltabiano, Anna M., Foley, Joe P., Striegel, André M.

“…Common reversed-phase columns (C18, C4, phenyl, and cyano) offer inert surfaces suitable for the analysis of polymers by size-exclusion chromatography (SEC)…”
Get full text

Aqueous size-exclusion chromatography of polyelectrolytes on reversed-phase and hydrophilic interaction chromatography columns by Caltabiano, Anna M., Foley, Joe P., Striegel, André M.

“…•Reversed-phase and HILIC columns are suitable for aqueous SEC.•The best performance is seen with medium polarity and polar stationary phases.•An electrolyte…”
Get full text

Rebooting the Franchise: The 2015 International Symposium on GPC/SEC and Related Techniques by Striegel, André M.

Get full text