Optimization of ascorbic and uric acid separation in human plasma by free zone capillary electrophoresis ultraviolet detection

2004 ◽  
Vol 330 (2) ◽  
pp. 298-305 ◽  
Author(s):  
Angelo Zinellu ◽  
Ciriaco Carru ◽  
Salvatore Sotgia ◽  
Luca Deiana
Keyword(s):  
Capillary Electrophoresis ◽  
Uric Acid ◽  
Human Plasma ◽  
Ultraviolet Detection ◽  
Free Zone

Separation of aceclofenac and diclofenac in human plasma by free zone capillary electrophoresis using N-methyl-d-glucamine as an effective electrolyte additive

2005 ◽  
Vol 24 (4) ◽  
pp. 375-380 ◽  
Author(s):  
Angelo Zinellu ◽  
Ciriaco Carru ◽  
Salvatore Sotgia ◽  
Emanuela Porqueddu ◽  
Paolo Enrico ◽  
...  
Keyword(s):  
Capillary Electrophoresis ◽  
Human Plasma ◽  
Electrolyte Additive ◽  
Free Zone

Deproteinizing methods evaluated for determination of uric acid in serum by reversed-phase liquid chromatography with ultraviolet detection.

1987 ◽  
Vol 33 (8) ◽  
pp. 1427-1430 ◽  
Author(s):  
R Sakuma ◽  
T Nishina ◽  
M Kitamura
Keyword(s):  
Uric Acid ◽  
Liquid Chromatography ◽  
Perchloric Acid ◽  
High Performance ◽  
Reversed Phase ◽  
Precipitation Method ◽  
Zinc Hydroxide ◽  
Good Precision ◽  
Ultraviolet Detection

Abstract We evaluated six deproteinizing methods for determination of uric acid in serum by "high-performance" liquid chromatography with ultraviolet detection: those involving zinc hydroxide, sodium tungstate, trichloroacetic acid, perchloric acid, acetonitrile, and centrifugal ultrafiltration (with Amicon MPS-1 devices). We used a Toyosoda ODS-120A reversed-phase column. The mobile phase was sodium phosphate buffer (40 mmol/L, pH 2.2) containing 20 mL of methanol per liter. Absorbance of the eluate was monitored at 284 nm. The precipitation method with perchloric acid gave high recoveries of uric acid and good precision, and results agreed with those by the uricase-catalase method of Kageyama (Clin Chim Acta 1971;31:421-6).

Detection of Smoked Paprika “Pimentón de La Vera” Adulteration by Free Zone Capillary Electrophoresis (FZCE)

2006 ◽  
Vol 54 (12) ◽  
pp. 4141-4147 ◽  
Author(s):  
Alejandro Hernández ◽  
Alberto Martín ◽  
Emilio Aranda ◽  
Teresa Bartolomé ◽  
María de Guía Córdoba
Keyword(s):  
Capillary Electrophoresis ◽  
Free Zone
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