Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Adolfo Téllez"'
Publikováno v:
Journal of Chromatography A. 1247:71-80
The retention of an ionizable analyte under RP-HPLC organic modifier gradient elution is strongly affected by its ionization degree which, in turn, depends on its pK(a) and on the pH of the mobile phase. The values of both parameters change depending
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1ab48985949b3c98e02cef53d54fd520
https://doi.org/10.1016/j.chroma.2012.05.070
https://doi.org/10.1016/j.chroma.2012.05.070
Autor:
Ernst Kenndler, Adolfo Téllez
Publikováno v:
ELECTROPHORESIS. 30:357-364
The effect of formamide (FA) as a modifier on the retention in MEKC with SDS as the detergent was investigated. The mobility of a series of alkylphenones and of a zwitterionic fluorescent compound as a function of the FA and the SDS concentration was
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::68ba0af1e618e632aa2101433c470ca8
https://doi.org/10.1002/elps.200800329
https://doi.org/10.1002/elps.200800329
Publikováno v:
ELECTROPHORESIS. 28:3712-3721
A method to optimize the separation in micellar EKC (MEKC) of mixtures of acidic compounds as a function of two parameters, pH and concentration of sodium dodecyl sulfate, has been developed. The method considers the prediction of the retention time
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d9a1ee9d3d19ac17113d760b9b780a93
https://doi.org/10.1002/elps.200600791
https://doi.org/10.1002/elps.200600791
Publikováno v:
Journal of Chromatography A. 1139:143-151
The validity of two models that explain the migration of ionisable solutes in micellar electrokinetic chromatography (MEKC), mobility model and retention factor model, has been tested. For this purpose, the mobility (mu) and retention factor (k) of a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4128039fe8f588ce41a6f94c70c48382
https://doi.org/10.1016/j.chroma.2006.11.004
https://doi.org/10.1016/j.chroma.2006.11.004
Publikováno v:
Analytical chemistry. 81(21)
A three-parameter expression, which was already employed before for the prediction of the retention time in gradient mode in reversed-phase high-performance liquid chromatography (RP-HPLC) with satisfactory results, has been tested here under a varie
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a060609807b29c1b5108ecaee67fcb30
https://pubmed.ncbi.nlm.nih.gov/19803530
https://pubmed.ncbi.nlm.nih.gov/19803530
Publikováno v:
Electrophoresis. 29(18)
Three equilibria determine the interaction of a neutral analyte with the detergent in micellar electrokinetic chromatography and therefore its migration: (i) that of the free analyte in the aqueous phase with the micelle, (ii) its association with fr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f2b75983ab6be360c2f5f5451007687e
https://pubmed.ncbi.nlm.nih.gov/18850660
https://pubmed.ncbi.nlm.nih.gov/18850660