[PDF] Top 20 Determination of saikosaponins by micellar electrokinetic capillary chromatography

... The contents of saikosaponins in traditional Chinese medicinal prescriptions, such as Sheau Chair Hwu Tang, Bupleuri Radix plant and Chair Hwu San are analyzed by one of th[r] ... See full document

... Separating analytes by MEKC is based on distinguishing their respective migration velocities by their different partition coefficients between the aqueous solution ph[r] ... See full document

... In this study, we have developed a micellar electrokinetic capillary chromatography (MEKC) method with diode-array detection to separate five important retinoids, in[r] ... See full document

... transmission of each subcarrier where data over the bold and fine connections are in finite and real field ...consists of a convolutional code followed by a constellation map- ...performed by ... See full document

... Sweeping; Micellar electrokinetic chromatography; On-line preconcentration ...effects of lysergic acid diethylamide (LSD) ...compounds of pharmacological ... See full document

... with micellar electrokinetic chromatography, for the simultaneous determination of flunitrazepam and its major metabolites, 7-aminoflunitrazepam and N-desmethylflunitrazepam, is ... See full document

... coupling of MEKC with ESI-MS using SDS as the surfactant, a 5 ppm triazine mixture was hydrodynamically injected into the capillary using a 10 mbar pressure differential for a duration of 10 ... See full document

... Department of Chemistry, National Taiwan University, ...separation of polycyclic aromatic hydrocarbons (PAHs) using ...in micellar electrokinetic chromatography ...presence of ... See full document

... Because Chinese medicinal preparations are fre- quently composed of several crude herbs, a compre- hensive analysis of marker analytes for each crude herb is nece[r] ... See full document

... dilution of the sample bands, since the flow rate of CE is in the range of several hundred ...use of such a high flow rate in a conventional sheath liquid interface is most likely due to the ... See full document

... In the present study, six specific compounds were selected as the target analytes, i.e., cinnamic acid, cinnamaldehyde, [6]-gingerol, glycyrrhizin, oleanolic acid an[r] ... See full document

... effect of preparing samples in solutions of var- ious conductivities, namely pure water and 1 and 5 mM citric acid/disodium hydrogenphosphate (pH ...conductivity of a 1 mM buffer. When prepared in ... See full document

... presence of THC- COOH can be used to verify illicit THC ...levels of THC and its metabolites in biological samples. The abuse of marijuana is widespread and increasing; in Taiwan, owning and using ... See full document

... Effect of (A) 20%, (B) 30%, and (C) 40% MeOH in the BGE on the sweeping–MEKC ...effective capillary length, 40 ...concentrations of these surfactants were above their CMCs, we applied a reversed ... See full document

... In capillary zone electrophoresis, a buffer solution containing sodium borate and sodium acetate was found to be the most suitable approach to determine the contents of these marker su[r] ... See full document

... pattern of contaminant concentration, the site is divided into four zones, each of which is assessed ...case of one of the four zones: 80 000 m 2 of farm- land with scattered ...vations ... See full document

... out of the target area to the neigh- boring ...control of long grasses and broad-leaved ...minations of GLYP, GLUF, and other phosphorus-containing pesticides by CE with different detection ... See full document

... extent of racemization of compositional amino acid in egg albumen and yolk over the alkaline pickling period was investigated with micellar capillary electrophoresis (MCE) using β-cyclodextrin ... See full document

... However, owing to the immiscibility of N-acyl-D&-amino acid methyl esters in aqueous solution, the resolution reaction with papain was carried out in an aqueous[r] ... See full document

... design of the apparatus ...produced by Sulzer DS700 machine made in Switzerland. The samples made of different count and density of weft cotton yarns vertical wicking ...density of 300 ... See full document