Determination of sulfate ester content in sulfated oligo- and poly-saccharides by capillary electrophoresis with indirect UV detection

2010 ◽  
Vol 25 (5) ◽  
pp. 588-593 ◽  
Author(s):  
Mitsuhiro Kinoshita ◽  
Naotaka Kakoi ◽  
Yu-ki Matsuno ◽  
Takao Hayakawa ◽  
Kazuaki Kakehi
Keyword(s):  
Capillary Electrophoresis ◽  
Uv Detection ◽  
Sulfate Ester ◽  
Indirect Uv Detection ◽  
Ester Content

Determination of tartaric acid in solid wine residues by capillary electrophoresis and indirect UV detection

1999 ◽  
Vol 853 (1-2) ◽  
pp. 181-184 ◽  
Author(s):  
Sandrine Mallet ◽  
Michel Arellano ◽  
Jean Claude Boulet ◽  
François Couderc
Keyword(s):  
Capillary Electrophoresis ◽  
Tartaric Acid ◽  
Uv Detection ◽  
Indirect Uv Detection

scholarly journals Separation and determination of inorganic cations in beverages by capillary electrophoresis with indirect UV detection

2008 ◽  
Vol 6 (4) ◽  
pp. 617-621 ◽  
Author(s):  
Jinzhang Gao ◽  
Haifeng Fan ◽  
Wu Yang ◽  
Xiangli Sun ◽  
Chongyang Li ◽  
...  
Keyword(s):  
Capillary Electrophoresis ◽  
Correlation Coefficients ◽  
Uv Detection ◽  
Complexing Agents ◽  
Indirect Uv Detection ◽  
Inorganic Cations ◽  
Jasmine Tea ◽  
Relative Standard ◽  
Electrophoresis Method

AbstractA rapid, simple and reliable capillary electrophoresis method for the separation and quantitation of inorganic cations with indirect UV detection at 214 nm was developed. The electrolyte was: 12 mM imidazole as background absorbance provider; 5 mM malic acid and 1.0 mM 18-crown-6 ether as complexing agents; and 20% D2O (v/v) to improve ion mobility. The pH was 4.25. The applied voltage was 22 kV at 22°C. Nine ions were completely separated and determined with correlation coefficients of 0.9979-0.9992. The relative standard deviations (RSD) were less than 0.5% for migration time and less than 5.2% for peak area (n=8). The detection limits (S/N=3) were from 0.08 mg L−1 (for Na+) to 0.51 mg L−1 (for Cu2+). To assess the reliability atomic absorption (AA) was also used to determine the same samples. Satisfactory results were obtained for real samples of jasmine tea drink and coconut milk.

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