Simple 2D‐HPLC using a monolithic silica column for peptide separationJournal of Separation Science - Tập 27 Số 10-11 - Trang 897-904 - 2004
Hiroshi Kimura, Tetsuya Tanigawa, Hironobu Morisaka, Tohru Ikegami, Ken Hosoya, N. Ishizuka, Hiroyoshi Minakuchi, Kazuki Nakanishi, Mitsuyoshi Ueda, Karin Cabrera, Nobuo Tanaka
AbstractSeparation of peptides by fast and simple two‐dimensional (2D)‐HPLC was studied using a monolithic silica column as a second‐dimension (2nd‐D) column. Every fraction from the first column, 5 cm long (2.1 mm ID) packed with polymer‐based cation exchange beads, was subjected to separation in the 2nd‐D using an octadecylsilylated (C18) mon...... hiện toàn bộ
Methacrylate monolithic columns for capillary liquid chromatography polymerized using ammonium peroxodisulfate as initiatorJournal of Separation Science - Tập 26 Số 18 - Trang 1623-1628 - 2003
Petra Holdšvendová, Pavel Coufal, Jana Suchánková, Eva Tesařová, Zuzana Bosáková
AbstractFour methacrylate ester‐based monolithic columns for capillary liquid chromatography (CLC) were prepared by radical polymerization with ammonium peroxodisulfate (3 columns) and by thermal initiation (1 column). The polymerization mixture consisted of butyl methacrylate (BMA) and ethylene glycol dimethacrylate (EDMA), propan‐1‐ol, butane‐1,4‐diol, water, and...... hiện toàn bộ
Separation and determination of five major opium alkaloids with mixed mode of hydrophilic/cation‐exchange monolith by pressurized capillary electrochromatographyJournal of Separation Science - Tập 30 Số 17 - Trang 3011-3017 - 2007
Xucong Lin, Jiabin Wang, Liyu Li, Xiaochun Wang, Lu Huang, Zenghong Xie
AbstractA method for the separation and determination of five major opium alkaloids (narcotine, papaverine, thebaine, codeine, and morphine) in pericarpium papaveris by pressurized CEC (pCEC) with monolithic column has been developed. Under the optimum condition, linear calibration ranges of narcotine, papaverine, thebaine, codeine, and morphine were obtained as 2–...... hiện toàn bộ
Comparison of monolithic silica and polymethacrylate capillary columns for LCJournal of Separation Science - Tập 27 Số 10-11 - Trang 789-800 - 2004
Dana Moravcová, Pavel Jandera, Jiřı́ Urban, Josef Planeta
AbstractOrganic polymer monolithic capillary columns were prepared in fused‐silica capillaries by radical co‐polymerization of ethylene dimethacrylate and butyl methacrylate monomers with azobisisobutyronitrile as initiator of the polymerization reaction in the presence of various amounts of porogenic solvent mixtures and different concentration ratios of monomers ...... hiện toàn bộ
Mass‐spectrometry‐based lipidomicsJournal of Separation Science - Tập 41 Số 1 - Trang 351-372 - 2018
Ting Hu, Jinlan Zhang
AbstractLipids, which have a core function in energy storage, signalling and biofilm structures, play important roles in a variety of cellular processes because of the great diversity of their structural and physiochemical properties. Lipidomics is the large‐scale profiling and quantification of biogenic lipid molecules, the comprehensive study of their pathways an...... hiện toàn bộ
Phân tích dư lượng thuốc trừ sâu trong mẫu nước môi trường bằng phương pháp chiết tách pha rắn phân tán sử dụng ống nanotube carbon đa thành Dịch bởi AI Journal of Separation Science - Tập 36 Số 3 - Trang 556-563 - 2013
Miguel Ángel González‐Curbelo, Antonio V. Herrera‐Herrera, Javier Hernández‐Borges, Miguel Ángel Rodríguez‐Delgado
Trong bài viết này, một phương pháp chiết tách pha rắn phân tán dựa trên việc sử dụng ống nanotube carbon đa thành đã được phát triển để xác định 15 loại dư lượng thuốc trừ sâu phospho hữu cơ, bao gồm một số chất chuyển hóa của chúng (disulfoton sulfoxide, ethoprophos, cadusafos, dimethoate, terbufos, disulfoton, chlorpyrifos-methyl, malaoxon, fenitrothion, pirimiphos-methyl, malathion, ch...... hiện toàn bộ
#dư lượng thuốc trừ sâu #ống nanotube carbon đa thành #chiết tách pha rắn phân tán #xác định thuốc trừ sâu #môi trường nước
Detection of migration of phthalates from agglomerated cork stoppers using HPLC‐MS/MSJournal of Separation Science - Tập 35 Số 10-11 - Trang 1319-1326 - 2012
Raquel Sendón, A. Sanches‐Silva, Juana Bustos, Patricia Martín, Nuria García-Martínez, Ma Eugenia Cirugeda
Agglomerated stoppers are manufactured from natural cork granules and adhesives. Esters, such as phthalates and adipates, are commonly used in adhesives at concentrations of typically 2–5%. Because of this, and regarding consumer safety, it is necessary to ensure that these compounds do not migrate into the beverage where the cork stopper is used. A reversed‐phase high performance liquid c...... hiện toàn bộ