The Synthesis And Characterization of Reversed Phase Stationary Phases for High Performance Liquid Chromatography
The Synthesis And Characterization of Reversed Phase Stationary Phases for High Performance Liquid Chromatography
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In our eReader you can find the full English version of the book. Read The Synthesis And Characterization of Reversed Phase Stationary Phases for High Performance Liquid Chromatography Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book The Synthesis And Characterization of Reversed Phase Stationary Phases for High Performance Liquid Chromatography
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Pryde and Darby (87) bonded gamma- aminopropyl trie thoxy si lane to spherical alumina and used the material for the analysis of paraquat and diquat. These phases, while useful for the researcher's particular applica- tion, would not be useful to a large number of chromatogra- phers. Hirata and Novotny (98) attempted to prepare a non- polar RP column by reacting, in situ, octadecylchlorosilane with alumina particles contained within a micr ocap i 1 lar y column and used the column for RP experi...ments. The column became more polar with use as the bonded material was cleaved.
Laurent and coworkers (89-91), finding similar difficulties, reported that hexame thy 1 d isi lazane (HMDS) bound to alumina was readily displaced by MeOH and H .-, . This phenomenon was 103 repeated with other reagents including trimethylchlorosilane and tertiary amines. They postulated that the lability of the material in polar solvents is due to the ionic nature of the Al-0 bond which makes the material more susceptible to nucleophilic attack than the less polar analogous Si-0 bond.
What to read after The Synthesis And Characterization of Reversed Phase Stationary Phases for High Performance Liquid Chromatography?
You can find similar books in the "Read Also" column, or choose other free books by Barnes, Karen Wink to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Pryde and Darby (87) bonded gamma- aminopropyl trie thoxy si lane to spherical alumina and used the material for the analysis of paraquat and diquat. These phases, while useful for the researcher's particular applica- tion, would not be useful to a large number of chromatogra- phers. Hirata and Novotny (98) attempted to prepare a non- polar RP column by reacting, in situ, octadecylchlorosilane with alumina particles contained within a micr ocap i 1 lar y column and used the column for RP experi...ments. The column became more polar with use as the bonded material was cleaved.
Laurent and coworkers (89-91), finding similar difficulties, reported that hexame thy 1 d isi lazane (HMDS) bound to alumina was readily displaced by MeOH and H .-, . This phenomenon was 103 repeated with other reagents including trimethylchlorosilane and tertiary amines. They postulated that the lability of the material in polar solvents is due to the ionic nature of the Al-0 bond which makes the material more susceptible to nucleophilic attack than the less polar analogous Si-0 bond.
What to read after The Synthesis And Characterization of Reversed Phase Stationary Phases for High Performance Liquid Chromatography?
You can find similar books in the "Read Also" column, or choose other free books by Barnes, Karen Wink to read onlineMoreLess
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