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Separation/Determination of Flavonoids and Ascorbic Acid in Rat Serum and Excrement by Capillary Electrophoresis with Electrochemical Detection
Flavonoids Ascorbic Acid in Rat Serum Excrement Capillary Electrophoresis with Electrochemical Detection
2010/9/20
A capillary electrophoresis with electrochemical detection was developed for the simultaneous determination of three flavonoids (naringenin, rutin, quercetin) and ascorbic acid. It was found that nari...
Voltammetric Determination of Ascorbic Acid and Dopamine Simultaneously at a Single Crystal Au(111) Electrode
Au(111) single-crystal electrode dopamine ascorbic acid voltammetry simultaneous determination
2010/4/9
A single-crystal Au(111) electrode was used for the simultaneous determination of dopamine (DA) and ascorbic acid (AA) in a phosphate buffer solution at pH 6.9. The single-crystal Au(111) electrode di...
Electrocatalytic Determination of Ascorbic Acid Using Glassy Carbon Modified with Nickel(II) Macrocycle Containing Dianionic Tetraazaannulene Ligand
Ni(II) tetraaza macrocycle Sensor Electrocatalytic oxidation L-Ascorbic acid
2010/4/20
A symmetric Ni(II) tetraaza macrocycle modified glassy electrode shows electrocatalytic activity for the oxidation of L-ascorbic acid at pH 7. It was shown the peak potential shifted to the negative b...
Crystal Habit Modification of Vitamin C (L-Ascorbic Acid) due to Solvent Effects
Crystal Habit Modification of Vitamin C Solvent Effects
2010/4/20
Crystal morphologies are predicted for vitamin C (L-ascorbic acid) using attachment energy methods. The significant differences between predicted and observed morphologies when vitamin C is grown from...
Application of Potassium Chromate-Diphenylcarbazide in the Quantitative Determination of Ascorbic Acid by Spectrophotometry
Ascorbic acid determination Spectrophotometry Potassium chromate Chromium-diphenyl-carbazide complex
2010/4/21
A spectrophotometric procedure for the determination of ascorbic acid in pure form and in a number of pharmaceutical preparations and real samples has been developed that offers the advantages of simp...
Flow Injection Amperometric Determination of Ascorbic Acid Using a Photoelectrochemical Reaction after Immobilization of Methylene Blue on Muscovite
Photoelectrochemical analysis flow injection analysis ascorbic acid muscovite methylene blue
2010/4/21
Flow Injection Amperometric Determination of Ascorbic Acid Using a Photoelectrochemical Reaction after Immobilization of Methylene Blue on Muscovite.
Determination of Ascorbic Acid in Vegetables by Derivative Spectrophotometry
Ascorbic acid Vegetables Derivative spectrophotometry
2010/4/22
Determination of ascorbic acid (AA) in garlic, green pepper and chestnut was performed by derivative spectrophotometry without using any pre-separation or background correction techniques. The method ...
The Influence of Transition Metal Ions on the Kinetics of Ascorbic Acid Oxidation by Methylene Blue in Strongly Acidic Media
The Influence of Transition Metal Ions the Kinetics of Ascorbic Acid Oxidation Methylene Blue
2010/4/22
The kinetics of the oxidation of L-ascorbic acid (H2 A) by methylene blue was investigated in strongly acidic media over the temperature range 22-40 oC. The kinetic studies were carried out as a funct...