Results 101 to 110 of about 604,617 (209)

Micellar Electrokinetic Chromatography for Separation of a Mixture of Coptis Alkaloids, Scute Flavonoids, and Rhubarb Anthraquinones and Bianthrones

open access: yes, 2009
Coptidis Rhizoma, Scutellariae Radix, and Rhei Rhizoma are three common Chinese herbs. There are many herbal formulas which contain either two or all three of the herbs mentioned above.
CHANG, LIN-CHAU;SUN, SHAO-WEN   +1 more
core  

Effects of organic modifiers on solute retention and electrokinetic migrations in micellar electrokinetic capillary chromatography

open access: yes, 1999
Influences of seven organic modifiers, including urea, methanol (MeOH), dioxane (DIO), tetrahydrofuran (THF), acetonitrile (ACN), 1-propanol (1-PrOH) and 2-propanol (2-PrOH), on the solute retention and the electrokinetic migrations in micellar ...
Zou, HF   +9 more
core   +1 more source

Separation of polycyclic aromatic hydrocarbons by using micellar electrokinetic chromatography [PDF]

open access: yes, 1996
In this work, the use of micellar electrokinetic chromatography (MEKC) for the separation of five polycyclic aromatic hydrocarbon (PAH) compounds is investigated.
Simmons, Patricia
core   +1 more source

Micellar electrokinetic chromatography of ionic compounds : the analysis of hop bitter acids

open access: yes, 1991
Successful separation of the six major hop bitter compounds by micellar electrokinetic chromatography depends critically on precise pH control. Any factor which can affect the actual in-column pH must, therefore, also be carefully controlled: it has been
Vindevogel, Johan, Sandra, Patrick
core   +1 more source

Methods development for separation of fungicides using micellar electrokinetic chromatography [PDF]

open access: yes, 2006
In this study, micellar electrokinetic chromatography (MEKC) was used for the simultaneous separation of three different classes of fungicides. Separations were done at 210 nm with on-column UV detection.
A'ubid, Na'emah
core  

Whiteness Evaluation for Chemical Analysis (WECA) as a Flexible Tool and Web-Based Software for Whiteness Assessment in Analytical Chemistry

open access: yesAnalytica
White Analytical Chemistry (WAC) provides a holistic framework for evaluating analytical methods by balancing analytical performance, environmental sustainability, and practical efficiency.
Fotouh R. Mansour   +4 more
doaj   +1 more source

E nantioseparation of phenothiazines in cyclodextrin-modified micellar electrokinetic chromatography

open access: yes, 2006
In this study, enantioseparations of five phenothiazines in cyclodextrin (CD)-modified micellar electrokinetic chromatography (MEKC) were investigated using a citrate buffer containing tetradecyltrimethylammonium bromide (TTAB) as a cationic surfactant ...
Lin, Ching-Erh; Chen, Kuo-Hsing; Hsiao, Yu-You; Liao, Wei-Ssu; Chen, Chia-Chong
core  

On-line concentration of neutral analytes for micellar electrokinetic chromatography II. Reversed electrode polarity stacking mode

open access: yes, 1997
Basic conditions for the on-line neutral sample concentration by reversed electrode polarity stacking mode for micellar electrokinetic chromatography are developed theoretically and experimentally verified.
Joselito Quirino (14747389)   +1 more
core  

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