Výsledky vyhledávání - "Richard A. Hartwick"

Capillary zone electrophoretic separation of basic proteins and drugs using guaran as a buffer modifier

Autor: Richard A. Hartwick, Q. Liu, F. Lin

Publikováno v: Chromatographia. 47:219-224

Guaran, a neutral polysaccharide, has been used as a buffer modifier to improve the separation of basic proteins and drugs. Migration reproductibility, peak shape and efficiency were improved when 0.1% guaran was added to the buffer. The concentratio

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9dee146a72d819d2977d0f36e37e7cfe
https://doi.org/10.1007/bf02466585

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Capillary isoelectric focusing with anionic coated capillaries

Autor: Susan Bane, Richard A. Hartwick, Donna M. Whynot

Publikováno v: Journal of Chromatography A. 767:231-239

Capillary isoelectric focusing (cIEF) is a powerful analytical technique for the separation of proteins. cIEF can be performed in capillaries with reduced electroosmotic flow, or in capillaries with controlled electroosmotic flow. This work introduce

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b81d9b10ecd205b29c791ca21c08d1a0
https://doi.org/10.1016/s0021-9673(96)01101-6

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Poly(diallyldimethylammonium chloride) as a Cationic Coating for Capillary Electrophoresis

Autor: Richard A. Hartwick, Qicai Liu, Fangming Lin

Publikováno v: Journal of Chromatographic Science. 35:126-130

A novel cationic polymer coating that exhibits a fast anodal electroosmotic flow (EOF) has been developed for capillary electrophoresis. In the first approach, poly(diallyldimethylammonium chloride) is chemically bonded onto the interior capillary wa

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ccae7818790c8e9c9441f434d8992ced
https://doi.org/10.1093/chromsci/35.3.126

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Free Solution Capillary Electrophoretic Separation of Basic Proteins and Drugs Using Cationic Polymer Coated Capillaries

Autor: Richard A. Hartwick, Fangming Lin, Qicai Liu

Publikováno v: Journal of Liquid Chromatography & Related Technologies. 20:707-718

A simple capillary coating which exhibits reversed (anodic) electroosmotic flow (EOF) has been developed for the separation of cationic compounds by free solution capillary electrophoresis. Poly(2-aminoethyl methacrylate hydrochloride) (PAEM) was che

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f5c9ad81e714ceffc357b2ed9d3264f8
https://doi.org/10.1080/10826079708014136

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On-line kinetic monitoring for biochemical reactions using multi-point detection in high-performance capillary electrophoresis

Autor: Peng Sun, Richard A. Hartwick

Publikováno v: Journal of Chromatography A. 695:279-285

The potential utility of high-performance capillary electrophoresis for on-line kinetic monitoring of biochemical reactions is demonstrated using a multi-point detection method. The adenosine deaminase-catalyzed deamination of adenosine to inosine is

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0d6bf18e691bc7fa260a74f632182a0c
https://doi.org/10.1016/0021-9673(94)00967-e

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Quantitative Structure-Retention Relationships in Capillary Electrophoresis of Inorganic Cations and Î²-Adrenolytic and Sulfonamides Compounds

Autor: Roman Kaliszan, Maciej Turowski, Adam Buciński, Richard A. Hartwick

Publikováno v: Quantitative Structure-Activity Relationships. 14:356-361

Quantitative structure-(electrophoretic) retention relationships (QSRR) were determined for metal cations using ionic radius, atomic mass and ionization energy as structural parameters. The QSRR show that atomic mass, Am, can be treated as a descript

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c26aef795bb5928526f2944068242941
https://doi.org/10.1002/qsar.19950140406

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Synthesis and evaluation of anionic polymer-coated capillaries with pH-independent electroosmotic flows for capillary electrophoresis

Autor: Peng Sun, Geoffrey E. Barker, Richard A. Hartwick, Adam Landman

Publikováno v: Journal of Chromatography A. 685:303-312

A capillary coating method was developed using a sodium-2-acrylamido-2-methylpropanesulfonate (NaAMPS) polymer. Capillaries coated with this anionic polymer exhibited pH-independent electroosmotic flows (EOFs). Capillaries with a particular EOF rate

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b87d49dcd9eebef238257febb7598c01
https://doi.org/10.1016/0021-9673(94)00635-0

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