The issues of saving energy resources are particular relevance for the regions Russia with an extremely cold climate. increased air pressure difference in winter and presence volumetric bridges form pile column grillages, basement slabs concrete block masonry often leads to a violation temperature regime first floors multi-storey buildings monolithic reinforced frame. Thermal analysis fragments...

a rapid, sensitive and reproducible hplc method using amperometric detector was developed and validated for the analysis of clarithromycin in human plasma. the separation was achieved on a monolithic silica column (mz- c8 125×4.0 mm) using acetonitrile- methanol-potassium dihydrogen phosphate buffer (40:6:54,v/v), with ph of 7.5, as the mobile phase at a flow rate of 1.5 ml/min. the assay enabl...

A sulfated poly β-cyclodextrin (SPCD) modified silica-based monolithic column was prepared for enantiomeric separation. First, 2-hydroxy-3-allyloxy-propyl-β-cyclodextrin (allyl-β-CD) was bonded onto a bifunctional reagent 3-(methacryloxy)propyltriethoxysilane (γ-MAPS) modified silica-based monolith through radical polymerization; the column was then sulfated with chlorosulfonic acid. The SPCD c...

A novel 1-naphthylamine (NA) coupled poly(2-hydroxyethyl methacrylate-co-N-methacryloyl-(L)-histidine methyl ester) [NA-PHEMAH] supermacroporous monolithic hydrophobic cryogel was prepared via covalent coupling of NA to PHEMAH for adsorption of lysozyme from aqueous solution. Firstly, PHEMAH monolithic cryogel was prepared by radical cryocopolymerization of HEMA with MAH as a functional comonom...

Monolithic silica columns have proven to be an excellent tool in the development of high-throughput applications, without any loss in chromatographic performance compared to traditional packing materials. Combined with liquid chromatography-mass spectrometry, an opportunity is given to develop rapid, selective and specific methods. We present a fast LC-ESI-MS/MS method, with post column split, ...