An automated column fabrication technique that is based on a ultraviolet (UV) light-emitting diode (LED) array oven, and provides precisely controlled "in-capillary" ultraviolet (UV) initiated polymerization at 365 nm, is presented for the production of open tubular monolithic porous polymer layer capillary (monoPLOT) columns of varying length, inner diameter (ID), and porous layer thickness. T...

A method was developed for fast and simultaneous determination of tetrafluoroborate (BF(4)(-)), thiocyanate (SCN(-)) and hexafluorophosphate (PF(6)(-)) by high-performance liquid chromatography using a silica-based monolithic column and direct (non-suppressed) conductivity detection. Chromatographic separation was performed on a Chromolith Speed ROD RP-18e column with tetrabutylammonium hydroxi...

In this study, we described a simple and effective modification procedure to prepare poly (methacrylate-co-ethylene glycol dimethacrylate) monolithic columns functionalized with 3-aminophenylboronic acid. The column morphology, pore size and specific surface area of the fabricated monolith were characterized by scanning electron microscopy, X-ray photoelectron spectroscopy, thermogravimetric an...

An end-to-end differential measurement approach with capacitively coupled contactless conductivity detection (C(4)D) was applied to anion-exchange monolithic capillary column ion chromatography. The column was prepared by thermally initiated radical polymerization of poly(glycidyl methacrylate) in a fused-silica capillary of 320 μm i.d. and modified by quaternary ammonium latex surface coating....

In recent years, the use of nanotechnology (nano-particles, nanomaterial, nano-additives and nanostructuredmaterials) has attracted attention of scholars, engineers and scientists in all scientificfields such as chemistry, medicine, material, agriculture, electronic etc. The use of nanotechnologyhas also become widespread in the refractory products (which mainly used in variou...

This study presents a novel energy-dissipating prefabricated joint for connecting beam to column in precast frame structure. The joints are characterized by replaceable steel hinge and tube confined core, providing advantages concrete reinforced frames, such as complete assembly, damage control, maintainability of the structure after an earthquake. hysteretic behavior proposed was studied throu...