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Determination of Potassium Penicillin-V by Second-order Differential Simple Oscillographic Voltammetry
Author(s): 
Pages: 9-11
Year: Issue:  5
Journal: JOURNAL OF INSTRUMENTAL ANALYSIS

Keyword:  示波分析简易示波伏安法青霉素V钾;
Abstract: 利用青霉素 V钾在 pH=7的 KH2PO4-Na2HPO4缓冲溶液中产生切口的示波特性 , 提出了一种药片中青霉素 V钾的测定方法 - - 二次微分简易示波伏安法 ; 校正曲线的线性范围为 2.0× 10-5~ 2.0× 10-4 mol/L, 检出限为 8× 10-6 mol/L; 对 7.0× 10-5 mol/L青霉素 V钾 8次测定结果的相对标准偏差为 1.6% ; 实验结果表明该法具有分析速度快、仪器装置简单以及药片中的淀粉等物质不干扰测定的优点 .
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