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A parallel catalytic wave of folic acid and its analytical application
Author(s): 
Pages: 44-46
Year: Issue:  6
Journal: CHINESE JOURNAL OF ANALYSIS LABORATORY

Keyword:  叶酸过硫酸钾平行催化波单扫描极谱法;
Abstract: 在Britton-Robinson(pH 4.1)的缓冲溶液中叶酸于-0.56 V(vs.SCE)产生一还原波,该波能被氧化剂过硫酸钾催化形成平行催化波.催化波峰电位不变,峰电流增加10倍,二阶导数波波高与叶酸的浓度在5.0×10-9~3.5×10-7 mol/L范围内呈线性关系(r=0.999),检出限可达3.0×10-9mol/L.方法简便灵敏,运用该法测定了叶酸片剂中的叶酸.
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