Development and Validation of a Micellar Electrokinetic Chromatography Method for Quantitative Determination of Butenolides in Piper malacophyllum (C. Presl) C. DC.

2010 ◽  
Vol 21 (5) ◽  
pp. 428-433 ◽  
Author(s):  
Alberto de Oliveira ◽  
Claudinei A. Silva ◽  
Adalberto M. Silva ◽  
Marina F.M. Tavares ◽  
Massuo J. Kato
Keyword(s):  
Quantitative Determination ◽  
Micellar Electrokinetic Chromatography ◽  
Electrokinetic Chromatography ◽  
Chromatography Method ◽  
Development And Validation

Micellar electrokinetic chromatography method development for determination of impurities in Ritonavir

2010 ◽  
Vol 53 (5) ◽  
pp. 1210-1216 ◽  
Author(s):  
Alexandre Zatkovskis Carvalho ◽  
Mohamed Nouri El-Attug ◽  
Sahar Ebrahem Zayed ◽  
Els Van Hove ◽  
Joost Van Duppen ◽  
...  
Keyword(s):  
Method Development ◽  
Micellar Electrokinetic Chromatography ◽  
Electrokinetic Chromatography ◽  
Chromatography Method ◽  
Determination Of Impurities

scholarly journals A sweeping-micellar electrokinetic chromatography method for the detection of three chlorophenols in cosmetic samples

2020 ◽  
Author(s):  
Zhihan Zheng ◽  
Xiaobin Li ◽  
Fangfang Gao ◽  
Huitao Liu ◽  
Yuan Gao
Keyword(s):  
Micellar Electrokinetic Chromatography ◽  
Signal To Noise Ratio ◽  
Sodium Dodecyl ◽  
Electrokinetic Chromatography ◽  
Chromatography Method ◽  
Sample Matrix ◽  
Pressure Injection ◽  
Relative Standard ◽  
On Line

AbstractA sweeping micellar electrokinetic chromatography (sweeping-MEKC) enrichment model was established for the determination of three chlorophenols (CPs) in cosmetics, namely, bithionol, pentachlorophenol (PCP), and 2,4,6-trichlorophenol (2,4,6-TCP). The optimum electrophoretic conditions were 20 mM NaH2PO4-80 mM sodium dodecyl sulfate (SDS) and 30% (v/v) acetonitrile (pH 2.3). The optimum on-line concentration conditions were as follows: sample matrix, 100 mM NaH2PO4; pressure injection at 20.67 kPa (3 psi) for 25 s. The linear range of bithionol, PCP, and 2,4,6-TCP are 0.20–4.00 μg mL−1, 0.10–2.00 μg mL−1, and 0.05–2.00 μg mL−1 respectively, with correlation coefficient (r) over 0.9972. The limits of detection (LOD) based on three times the signal-to-noise ratio (S/N = 3) are in the range of 0.0061–0.024 μg mL−1. Recoveries for the three CPs in powder and lotion samples are between 79.7 and 110.2% with relative standard deviation (RSD) of 1.38–5.54% and 92.2–121.3% with RSD of 0.72–6.09%, respectively. The proposed method can provide reference for the determination of trace CPs in different sample matrix.

Micellar Electrokinetic Chromatography Method for Determination of the Ten Water-Soluble Vitamins in Food Supplements

2013 ◽  
Vol 6 (6) ◽  
pp. 1592-1606 ◽  
Author(s):  
Danielle C. da Silva ◽  
Jesuí V. Visentainer ◽  
Nilson E. de Souza ◽  
Cláudio C. Oliveira
Keyword(s):  
Micellar Electrokinetic Chromatography ◽  
Food Supplements ◽  
Water Soluble ◽  
Electrokinetic Chromatography ◽  
Chromatography Method
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