Application of an in-house packed octadecylsilica-functionalized graphene oxide column for capillary liquid chromatography analysis of hormones in urine samples

Review Chemistry, Analytical

Emerging or Underestimated Silica-Based Stationary Phases in Liquid Chromatography

Anna W. Sobanska

Summary: This article describes several newly synthesized or forgotten silica-based stationary phases, as well as biologically-based stationary phases. Additionally, packing materials involving macrocyclic chemistry are discussed.

CRITICAL REVIEWS IN ANALYTICAL CHEMISTRY (2021)

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Review Nanoscience & Nanotechnology

Thermal interface materials with graphene fillers: review of the state of the art and outlook for future applications

Jacob S. Lewis et al.

Summary: Graphene has emerged as a promising filler material to meet the demands of future high-speed and high-powered electronics. A hybrid filler approach using graphene and boron nitride offers independent control of electrical and thermal conduction. The reliability and lifespan performance of thermal interface materials are important factors to consider for practical applications.

NANOTECHNOLOGY (2021)

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Review Chemistry, Analytical

Advances and Innovations in Liquid Chromatography Stationary Phase Supports

K. Broeckhoven et al.

ANALYTICAL CHEMISTRY (2021)

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Article Chemistry, Physical

Simultaneous growth of graphene/mesoporous silica composites using liquid precursor for HPLC separations

Hui Qian et al.

Summary: Silica intercalated graphene-silica composites were prepared via one-step hydrothermal method without the need for prior synthesis of graphene or the use of graphite as a carbon source. The influence of organic solvent type, hydrothermal reaction temperature, and calcination temperature on the structure of the composites was studied. The composites were characterized and proposed for use as stationary phase in high performance liquid chromatograph separation, effectively separating hydrocarbon mixtures under reversed phase conditions.

APPLIED SURFACE SCIENCE (2021)

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Article Chemistry, Analytical

Preparation and evaluation of a poly(N-isopropylacrylamide) derived graphene quantum dots based hydrophilic interaction and reversed-phase mixed-mode stationary phase for complex sample analysis

Qiurong Luo et al.

Summary: The study polymerized poly(N-isopropylacrylamide) onto the surface of graphene quantum dots (GQDs) functionalized silica as packing materials, demonstrating a column with reversed-phase and hydrophilic interaction modes for separating target analytes with different Log P values. The Sil-GQDs-PNIPAAm stationary phase shows potential for improving the analysis range and performance of traditional phases.

TALANTA (2021)

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Article Polymer Science

Fabrication of Graphene-Coated Silica Particles for Polymer Chromatography to Quantify Chemical Composition Distribution of Polyolefin Materials

Rongjuan Cong et al.

Summary: Polyolefins are widely consumed synthetic polymers known for their tunable performance at low production costs. This study focuses on high-temperature thermal gradient interactive chromatography (HT-TGIC) to improve separation resolution by enhancing the stationary phase with core-shell particles. These innovative particles, consisting of nonporous silica as the core and graphene nanopowder as the shell, show improved chromatographic performance compared to existing HT-TGIC columns.

MACROMOLECULES (2021)

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Review Chemistry, Multidisciplinary