Determination of baclofen and vigabatrin by microchip electrophoresis with fluorescence detection: application of field-enhanced sample stacking and dynamic pH junction

2018 ◽  
Vol 42 (12) ◽  
pp. 9965-9974 ◽  
Author(s):  
Abdallah M. Zeid ◽  
Noritada Kaji ◽  
Jenny Jeehan M. Nasr ◽  
Fathalla Belal ◽  
Mohamed I. Walash ◽  
...  
Keyword(s):  
Fluorescence Detection ◽  
Microchip Electrophoresis ◽  
Electrophoretic Method ◽  
Sample Stacking ◽  
Dynamic Ph Junction ◽  
First Time

A novel microchip gel electrophoretic method for the assay of baclofen and vigabatrin for the first time.

Rapid Determination of Creatinine in Human Urine by Microchip Electrophoresis with LED Induced Fluorescence Detection

2012 ◽  
Vol 75 (21-22) ◽  
pp. 1287-1293 ◽  
Author(s):  
Shuping Wang ◽  
Xinchun Li ◽  
Jianping Yang ◽  
Xiujuan Yang ◽  
Fenghua Hou ◽  
...  
Keyword(s):  
Fluorescence Detection ◽  
Human Urine ◽  
Rapid Determination ◽  
Microchip Electrophoresis

Sensitive determination of l-hydroxyproline in dairy products by capillary electrophoresis with in-capillary optical fiber light-emitting diode-induced fluorescence detection

2018 ◽  
Vol 10 (19) ◽  
pp. 2211-2216 ◽  
Author(s):  
Hongyun Ji ◽  
Xueyan Zhang ◽  
Feng Yang ◽  
Jiali Wang ◽  
Hongyan Yuan ◽  
...  
Keyword(s):  
Capillary Electrophoresis ◽  
Optical Fiber ◽  
Fluorescence Detection ◽  
Dairy Products ◽  
Light Emitting Diode ◽  
Electrophoretic Method ◽  
Light Emitting ◽  
Sensitive Determination ◽  
Capillary Electrophoretic

A sensitive capillary electrophoretic method with in-capillary optical fiber light-emitting diode-induced fluorescence detection (ICOF-LED-IFD-CE) was developed for determination of l-Hyp and further for identification of hydrolyzed leather proteins in dairy products.

Determination of nitrites and nitrates in drinking water using capillary electrophoresis

2014 ◽  
Vol 68 (8) ◽  
Author(s):  
Eva Martínková ◽  
Tomáš Křžek ◽  
Pavel Coufal
Keyword(s):  
Drinking Water ◽  
Rapid Determination ◽  
Background Electrolyte ◽  
Internal Standard ◽  
Detection Limits ◽  
Electrophoretic Method ◽  
Sample Stacking ◽  
Total Analysis ◽  
Drinking Water Samples

AbstractThis work was concerned with developing an electrophoretic method for rapid determination of nitrites and nitrates in drinking water. The background electrolyte was Tris-HCl buffer with an addition of cetyltrimethylammonium chloride to reverse the electro-osmotic flow. Online preconcentration of samples using the field-amplified sample stacking method provided detection limits of 0.003 mg L−1 (i.e. 65 nM) for nitrites and 0.010 mg L−1 (i.e. 160 nM) for nitrates, which are sufficiently low for quality control of drinking water. The method was tested in a concentration range corresponding to real drinking water samples and the differentiation between nitrites and nitrates was sufficient for simultaneous determination of nitrites at their concentrations of the order of tenths of mg L−1 and nitrates at their concentrations of the order of units to tens of mg L−1. A number of authors have neglected this important aspect when concentrating only on achieving the lowest possible detection limits. Separation of the two analytes and iodate as an internal standard was achieved in only three minutes. Total analysis time including preconditioning was eight minutes.

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