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Analysis of brazilin and protosappanin B in sappan lignum by capillary zone electrophoresis with acid barrage stacking
A method was developed to determine brazilin and protosappanin B in natural products by CE after acid barrage stacking. The optimum conditions were as follows: a BGE of 20 mM sodium tetraborate (pHExpand
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Analysis of flavonoids by capillary zone electrophoresis with electrokinetic supercharging.
On-line concentration via Electrokinetic Supercharging (EKS) was used to enhance the sensitivity of the capillary electrophoretic separation of the four flavonoids naringenin, hesperetin, naringinExpand
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Analysis of flavonoids by non-aqueous capillary electrophoresis with 1-ethyl-3-methylimidazolium ionic-liquids as background electrolytes.
The separation of three flavonoids, kaempferol, quercetin and luteolin, by capillary zone electrophoresis with three 1-ethyl-3-methylimidazolium ionic liquids (ILs), namely chloride, hydrogen sulfateExpand
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Analysis of phenolic acids by non-aqueous capillary electrophoresis after electrokinetic supercharging.
Electrokinetic supercharging (EKS), a new and powerful on-line preconcentration method for capillary electrophoresis, was utilized in non-aqueous capillary electrophoresis (NACE) to enhance theExpand
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Fast analysis of phenolic acids by electrokinetic supercharging-nonaqueous capillary electrophoresis.
A method was developed to analyze phenolic acids by nonaqueous CE after online concentration with electrokinetic supercharging. The EOF was reversed using a polyelectrolyte multilayer approach basedExpand
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Orthogonal array design experiments for optimizing the separation of nine pesticides by micellar electrokinetic chromatography
Abstract Separation in micellar electrokinetic chromatography is influenced by many factors. The separation of 9 pesticides was optimized using orthogonal array designs (OADs), five relevant factorsExpand
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Analysis of aromatic acids by nonaqueous capillary electrophoresis with ionic‐liquid electrolytes
The separation of six kinds of aromatic acids by CZE with 1‐ethyl‐3‐methylimidazolium chloride (EMIMCl) and 1‐ethyl‐3‐methylimidazolium hydrogen sulfate (EMIMHSO4), two kinds of ionic liquids (ILs)Expand
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Analysis of Melamine in Milk Powder and Liquid Milk by Capillary Zone Electrophoresis After Electrokinetic Supercharging
A method was developed to determine melamine in milk powder and liquid milk by capillary zone electrophoresis after electrokinetic supercharging. The effects of buffer acidity and concentration, theExpand
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Advances of a capillary electrophoretic on-line concentration technique: Electrokinetic supercharging
ABSTRACT After comparing with electrokinetic injection (EKI) and transient isotachophoresis (t-ITP), the principles of electrokinetic supercharging (EKS) were introduced. Thereafter, the advances andExpand
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The effects of leakage error on terrestrial water storage variations in the Yangtze River Basin measured by GRACE
Abstract The Yangtze River Basin is an important economic area in China. Monitoring TWS change in this basin is strongly meaningful for exploitation of water resources and economic development.Expand
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