Determination of five priority haloacetic acids by capillary electrophoresis with contactless conductivity detection and solid phase extraction preconcentration

2012 ◽  
Vol 35 (5-6) ◽  
pp. 666-673 ◽  
Author(s):  
Petr Kubáň ◽  
Natalja Makarõtševa ◽  
Isaac K. Kiplagat ◽  
Mihkel Kaljurand
Keyword(s):  
Capillary Electrophoresis ◽  
Solid Phase Extraction ◽  
Solid Phase ◽  
Haloacetic Acids ◽  
Phase Extraction ◽  
Conductivity Detection ◽  
Contactless Conductivity Detection ◽  
Extraction Preconcentration

scholarly journals Simultaneous determination of three sulfanilamide artificial sweeteners in foodstuffs by capillary electrophoresis coupled with contactless conductivity detection based on porous aromatic frameworks enhanced solid phase extraction

2019 ◽  
Vol 97 (5) ◽  
pp. 344-351 ◽  
Author(s):  
Shaige Xia ◽  
Dan Yin ◽  
Yanlong Chen ◽  
Zhicong Yang ◽  
Ying Miao ◽  
...  
Keyword(s):  
Capillary Electrophoresis ◽  
Solid Phase Extraction ◽  
Simultaneous Determination ◽  
Solid Phase ◽  
Artificial Sweeteners ◽  
Phase Extraction ◽  
Conductivity Detection ◽  
Contactless Conductivity Detection ◽  
Porous Aromatic Frameworks

In this paper, a simple and easy method of solid phase extraction (SPE) followed by capillary electrophoresis (CE) with capacitively coupled contactless conductivity detection (C4D) is evaluated as a novel approach for the simultaneous determination of acesulfame-K (ACE), sodium saccharin (SAC), and sodium cyclamate (CYC) in foodstuffs without derivatization. To reduce the complex matrix interference resulting from the constituents of samples and enriched targets, porous aromatic frameworks (PAFs) enhanced SPE, a suitable sample pretreatment procedure, was introduced. Several factors affecting extraction efficiency and electrophoretic separation were investigated. Additionally, the interaction mechanisms between the host (PAF-6) and guests (ACE, SAC, and CYC) were studied. Under the optimum conditions, three sulfanilamide artificial sweeteners were baseline separated within 8 min, exhibiting a linear calibration over two orders of magnitude (R2 > 0.995). The limits of detection (LOD) and quantification (LOQ) were considered better than those usually obtained by CE with ultraviolet and C4D detection. The proposed SPE–CE–C4D method has been successfully applied to analyse beverage samples and candied fruits with recoveries in the range of 78.89%–92.00%.

Ultrasound-assisted magnetic solid-phase extraction for the determination of some transition metals in Orujo spirit samples by capillary electrophoresis

2016 ◽  
Vol 190 ◽  
pp. 263-269 ◽  
Author(s):  
Rosa M. Peña Crecente ◽  
Carlha Gutiérrez Lovera ◽  
Julia Barciela García ◽  
Carlos Herrero Latorre ◽  
Sagrario García Martín
Keyword(s):  
Capillary Electrophoresis ◽  
Transition Metals ◽  
Solid Phase Extraction ◽  
Solid Phase ◽  
Magnetic Solid Phase Extraction ◽  
Phase Extraction ◽  
Magnetic Solid ◽  
Ultrasound Assisted

scholarly journals Dispersive solid-phase extraction based on butylamide silica for the determination of sulfamethoxazole in milk samples by capillary electrophoresis

2016 ◽  
Vol 39 (14) ◽  
pp. 658-665 ◽  
Author(s):  
Gabriela Islas ◽  
José A. Rodríguez ◽  
M. Elena Páez-Hernández ◽  
Silvia Corona-Avendaño ◽  
Alberto Rojas-Hernández ◽  
...  
Keyword(s):  
Capillary Electrophoresis ◽  
Solid Phase Extraction ◽  
Solid Phase ◽  
Phase Extraction ◽  
Dispersive Solid Phase Extraction ◽  
Milk Samples
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