Potentiometric determination of ascorbic acid: Estimation of its contribution to the total antioxidant capacity of plant materials

被引：11
|
作者：
Abdullin, IF [1 ]
Turova, EN [1 ]
Ziyatdinova, GK [1 ]
Budnikov, GK [1 ]
机构：
[1] Kazan VI Lenin State Univ, Dept Chem, Kazan 420008, Tatarstan, Russia
来源：
JOURNAL OF ANALYTICAL CHEMISTRY | 2002年 / 57卷 / 04期
关键词：
Analytical Chemistry; Platinum; Ascorbic Acid; Plant Material; Antioxidant Capacity;
D O I：
10.1023/A:1014962617407
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
It was found that an iodine-modified platinum electrode gives a linear potentiometric response to 1.0 X 10(-5) to 1.0 X 10(-3) M ascorbic acid in model solutions. Ascorbic acid in some preparations was determined by potentiometry. The contribution of ascorbic acid to the total antioxidant capacity of aqueous extracts of hips, hop cones, and lemon juice was estimated.
引用
收藏
页码：353 / 355
页数：3
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