Systematic optimization of a pyromellitic acid background electrolyte for capillary electrophoresis with indirect UV-vis detection and online pre-concentration analysis of thiosalt anions in treated mine tailings

2014 ◽  
Vol 6 (23) ◽  
pp. 9305-9312 ◽  
Author(s):  
Michael Pappoe ◽  
Christina S. Bottaro
Keyword(s):  
Capillary Electrophoresis ◽  
Simultaneous Determination ◽  
Mine Tailings ◽  
Background Electrolyte ◽  
Pyromellitic Acid ◽  
Systematic Optimization

An indirect CZE method was developed for the simultaneous determination of five thiosalt anions: sulfate (SO42−), thiosulfate (S2O32−), trithionate (S3O62−), tetrathionate (S4O62−) and pentathionate (S5O62−).

scholarly journals Optimisation of analytical conditions for simultaneous determination of phenol and chlorophenols by capillary electrophoresis with indirect laser-induced fluorescence detection

2021 ◽  
Vol 63 (11) ◽  
pp. 51-55
Author(s):  
Manh Huy Nguyen ◽  
◽  
Hong Anh Duong ◽  
Hung Viet Pham ◽  
◽  
...  
Keyword(s):  
Capillary Electrophoresis ◽  
Phenolic Compounds ◽  
Simultaneous Determination ◽  
Fluorescence Detection ◽  
Background Electrolyte ◽  
Laser Induced Fluorescence ◽  
Laser Induced Fluorescence Detection ◽  
Electrophoresis Method ◽  
Wastewater Samples

This work presented a capillary electrophoresis method with indirect laser-induced fluorescence detection for the simultaneous determination of phenol and four chlorophenol derivatives. The separation was obtained within 20 minutes with a background electrolyte composed of 5 mM borax and 1 mM fluorescein (pH=9.75), 17 kV of applied voltage, and 120 s of hydrostatic injection. At the optimal conditions, the limit of detections for phenolic compounds was in the range of 0.08-0.23 mg/l, and the RSD data of repeatability and reproducibility were less than 8.0% for both migration times and peak areas. This developed method was applied to analyse concentrations of phenolic compounds in surface water and wastewater samples, with the recoveries ranging from 59.4 to 102.5%.

Capillary electrophoresis in the evaluation of ischemic injury: Simultaneous determination of purine compounds and glutathione

2000 ◽  
Vol 21 (8) ◽  
pp. 1552-1557 ◽  
Author(s):  
Filippo Carlucci ◽  
Antonella Tabucchi ◽  
Bonizella Biagioli ◽  
Guido Sani ◽  
Gianfranco Lisi ◽  
...  
Keyword(s):  
Capillary Electrophoresis ◽  
Simultaneous Determination ◽  
Ischemic Injury
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