Rapid Determination of Ascorbic Acid in Fresh Vegetables and Fruits with Electrochemically Treated Screen-Printed Carbon Electrodes
This study demonstrates a new electrochemical method for rapid de-termination of ascorbic acid in real samples with electrochemically pretreated screenprinted carbon electrodes. Cyclic voltammetry results indicated that the electrochemically activated electrodes possessed an excellent electrocatalytic activity toward ascorbic acid oxidation and can be successfully used for its se-lective and sensitive determination in fresh vegetables and fruits. The proposed method was further validated by means of specificity assay with ascorbate oxidase and a comparison with an accurate method such as highperformance liquid chromatography using ultraviolet detection. The electrodes presented the advantages over other existing methods such as mass production and without artificial modification. This study essentially offers a facile and reliable method for rapid determination of ascorbic acid in food analysis with high selectivity and sensitivity as well as low cost.
Ascorbic Acid Electrochemical Pretreatment Screen-Printed Electrodes Vegetables Fruits
Ling Xiang Hua Ping Liu Zhao Zhihong Ma Ligang Pan
Beijing Research Center for Agrifood Testing and Farmland Monitoring,Beijing 100097, P. R. China Beijing Research Center for Information Technology in Agriculture,Beijing 100097, P. R. China
国际会议
南昌
英文
234-242
2010-10-22（万方平台首次上网日期，不代表论文的发表时间）