Covalent organic frameworks (COFs) are a class of emerging materials that are synthesized
based on the covalent bonds between different building blocks. COFs possess unique …

Sample preparation procedure before the detection step is of great importance for
successful realization of an analytical method. The extraction and preconcentration …

Covalent organic frameworks (COFs), as an emerging class of crystalline porous organic
polymers, have great potential for applications in chromatographic separation owning to …

Abstract Two novel stationary phases, 1-(4-bromobutyl)-3-methylimidazolium bromide
bonded chitosan modified silica and 1-(4-bromobutyl)-3-methylimidazolium bromide bonded …

To satisfy the requirement of simultaneous extraction and characterization of diverse kinds of
multitarget analytes, the preparation, characterization, and application of a novel …

A novel calixarene ionic liquid functionalized silica material was synthesized by the
preparation of a new calixarene monomer and its grafting on mercaptopropyl modified silica …

Carbonaceous nanomaterials (CNMs) are prevalent in many disciplines. In separation
science, CNMs have made great contributions to the innovation of stationary phases for …

A new stationary phase for high performance liquid chromatography (HPLC) applications
based on silica gel microspheres decorated with covalent triazine-based frameworks (CTF …

Efficient separation of aromatic amine isomers is a challenging issue in chemical industry
and environmental analysis. Here we report the use of p-amino-tetradecyloxy-calix [4] arene …

In this paper, a rapid and practical high performance liquid chromatography (HPLC) method,
using home-made tetraazacalix [2] arene [2] triazine-modified silica gel (NCSi) as a solid …