Development of a resin based silica monolithic column encapsulation
نویسندگان
چکیده
منابع مشابه
Application of Monolithic Silica Column for HPLC Separation of Estrogens
A monolithic silica column has recently been widely used for HPLC separation analysis. Compared with the particle−packed column (conventional column), the monolithic silica column eluted the analyte with a smaller retention factor (k), lower pressure and satisfactory separation [1]. However, the monolithic silica column has not been widely used for the HPLC or LC/MS analysis of steroids. These ...
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This paper describes the synthesis and chromatographic and morphologic characterization of two monolithic silica nano-columns (50 µm i.d.) prepared by sol-gel processes, using hydrophilic interaction (HILIC) mode separations to evaluate their performance. Two types of monoliths were prepared by varying the precursors (tetraethoxysilane or a tetraethoxysilane-methyltrimethoxysilane mixture) and ...
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A separation system for gold nanoparticles was developed using monolithic silica capillary columns with 50 µm i.d., which were prepared via in-situ sol-gel processes. Gold nanoparticles with five different average sizes were synthesized via reduction of tetrachloroauric acid (HAuCl(4)) under different synthesis conditions, and were evaluated by UV-visible spectrophotometry, dynamic light scatte...
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Monolithic silica spin column extraction (MonoSpin-SPE) was developed as a simple, sensitive, and eco-friendly pretreatment method which combined with ultra-fast liquid chromatography-mass spectrometry (UFLC-MS) to determine the levels of six phthalate esters, dimethyl-(DMP), diethyl-(DEP), dipropyl- [DPrP], butyl-benzyl-(BBP), dicyclohexyl(DcHP), and di- n-octyl-(DOP) phthalate in physiologica...
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We attempted an analysis of naturally occurring polyprenol and dolichol using a monolithic silica capillary column in HPLC. First, the separation of the polyprenol mixture alone was performed using a 250 x 0.2 mm inner diameter (ID) octadecylsilyl (ODS)-monolithic silica capillary column. The resolution of the separation between octadecaprenol (prenol 18) and nonadecaprenol (prenol 19) exceeded...
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ژورنال
عنوان ژورنال: Analytical Methods
سال: 2015
ISSN: 1759-9660,1759-9679
DOI: 10.1039/c5ay00722d