Zobrazeno 1 - 10
of 51
pro vyhledávání: '"N.M. Djordjevic"'
Publikováno v:
Journal of Chromatography A. 857:1-20
The separation of samples that contain more than 15 to 20 analytes (n > 15-20) is typically difficult and usually requires gradient elution. We have examined the reversed-phase liquid chromatographic separation of 24 samples with 8 < or = n < or = 48
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::66f1b6c4970e026aba020b863b87f7c6
https://doi.org/10.1016/s0021-9673(99)00765-7
https://doi.org/10.1016/s0021-9673(99)00765-7
Autor:
F. Houdiere, N.M. Djordjevic
Publikováno v:
Reviews in Analytical Chemistry, Vol 17, Iss 4, Pp 207-222 (1998)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c70bfebd25f6f5db2a4ffe4c243c0f2b
https://doaj.org/article/8c9a24fc72b84e5f842cf0f136d49169
https://doaj.org/article/8c9a24fc72b84e5f842cf0f136d49169
Autor:
D.W. Hill, Lloyd R. Snyder, N.M. Djordjevic, D.L Saunders, T.J Waeghe, John W. Dolan, L. Van Heukelem
Publikováno v:
Journal of Chromatography A. 803:1-31
The optimized reversed-phase HPLC separation of 14 different samples is reported, based on simultaneous changes in temperature and gradient steepness. Four experimental runs are required for each sample, following which preferred conditions can be pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c0409c8e0aa95bc13df61dbec4dea75c
https://doi.org/10.1016/s0021-9673(97)01293-4
https://doi.org/10.1016/s0021-9673(97)01293-4
Autor:
T.J. Waeghe, Lloyd R. Snyder, N.M. Djordjevic, Lane C. Sander, John W. Dolan, P.L. Zhu, D.W. Hill
Publikováno v:
Journal of Chromatography A. 756:21-39
It has been shown previously that computer simulation based on two initial experiments can predict separation in reversed-phase gradient elution as a function of gradient conditions (gradient steepness, gradient range and gradient shape) and column c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c36ef8bb0e9efb9dae5051719dd302d5
https://doi.org/10.1016/s0021-9673(96)00721-2
https://doi.org/10.1016/s0021-9673(96)00721-2
Autor:
L. Van Heukelem, Lane C. Sander, John W. Dolan, Jiann-Tsyh Lin, P.L. Zhu, D.W. Hill, Lloyd R. Snyder, N.M. Djordjevic
Publikováno v:
Journal of Chromatography A. 756:63-72
The separation of nine un-ionized samples was studied as a function of temperature (T) and gradient steepness (b). Selectivity values Δlog α∗ were obtained for 160 compounds, ranging from nonpolar hydrocarbons to very polar drugs. Selectivity var
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9a38a3b584b0ead7b50310d905bdfffc
https://doi.org/10.1016/s0021-9673(96)00724-8
https://doi.org/10.1016/s0021-9673(96)00724-8
Reversed- and normal-phase separations by high-temperature open-tubular column liquid chromatography
Publikováno v:
Journal of Chromatography A. 598:153-158
The selectivity and stability of some commercial reversed-phase open-tubular columns were studied under high-temperature conditions. Differently substituted chlorobenzenes were used as test compounds. Graphs of ln k′ versus the number of chlorine a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e13c3b4462939caf56e7de11f211618c
https://doi.org/10.1016/0021-9673(92)85043-s
https://doi.org/10.1016/0021-9673(92)85043-s
Publikováno v:
International Journal of Pharmaceutics. 81:21-29
A gas-chromatographic technique was used to measure the adsorption of water at zero and finite surface coverage of the orthorhombic form of cyclosporin A. For calculation of the surface area, the BET adsorption isotherms of water at 373 K and nitroge
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d871f295f646df373d4b84569992c5f0
https://doi.org/10.1016/0378-5173(92)90039-5
https://doi.org/10.1016/0378-5173(92)90039-5
Publikováno v:
Journal of Chromatography A. 592:239-247
In open-tubular liquid chromatography (OTLC), elevation of the column temperature has the same effect as reductilon of the column diameter in obtaining high column efficiencies, with the additional benefits of easier column handling and fewer problem
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1205f1460a86e275f39299dd428e0f39
https://doi.org/10.1016/0021-9673(92)85090-g
https://doi.org/10.1016/0021-9673(92)85090-g
Autor:
N.M. Djordjevic
Publikováno v:
Thermochimica Acta. 177:109-118
Solubilities of five polycyclic aromatic hydrocarbon solids: naphthalene, acenaphthene, anthracene, phenanthrene and pyrene in n -octadecane (OD) have been determined over a range of temperatures. Differential scanning calorimetry (DSC) has been used
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e88bffcf1acb77ca89dfe73b8eec228e
https://doi.org/10.1016/0040-6031(91)80089-2
https://doi.org/10.1016/0040-6031(91)80089-2
Publikováno v:
Journal of Chromatography A. 550:27-37
A good optimization routine should correctly find the best chromatographic separation conditions for mixtures of known or unknown constituents. The chromatographer must define the number of the parameters to be optimized and their ranges. However, th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0857df0af6acc33a6f4195c4a5a8a2eb
https://doi.org/10.1016/s0021-9673(01)88528-9
https://doi.org/10.1016/s0021-9673(01)88528-9