A Batch Injection Analysis System with Square-wave Voltammetric Detection for Fast and Simultaneous Determination of Zinc and Ascorbic Acid

被引：4

作者：

Ribeiro, Michelle M. A. C. ^{[1
]}

Rocha, Raquel G. ^{[1
]}

Munoz, Rodrigo A. A. ^{[1
]}

Richter, Eduardo M. ^{[1
]}

机构：

[1] Univ Fed Uberlandia, Inst Chem, Joao Naves de Avila 2121, BR-13400970 Uberlandia, MG, Brazil

来源：

ELECTROANALYSIS | 2021年 / 33卷 / 01期

关键词：

Fast analysis; Portable system; Simultaneous determination; Striping voltammetry; Unmodified electrode; ANODIC-STRIPPING VOLTAMMETRY; SCREEN-PRINTED ELECTRODES; DOPED DIAMOND ELECTRODES; SPECTROPHOTOMETRIC DETERMINATION; VITAMIN-C; SUPPLEMENTATION; SPECTROMETRY; ACTIVATION; SAMPLES;

D O I：

10.1002/elan.202060078

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The determination of organic and inorganic compounds in a single run is still a great challenge. In this paper, we developed a method for fast simultaneous determination of ascorbic acid (AA) and zinc ions (Zn) using batch injection analysis with detection by square-wave anodic stripping voltammetry (BIA-SWASV). Britton-Robinson (BR) buffer solution (pH=6.0) as the supporting electrolyte and boron doped diamond (BDD) as the working electrode. The method presented favorable analytical characteristics such as fast response (67 injections h(-1)), low detection limits (0.2 and 5.4 mu mol L(-1)for Zn ions and AA, respectively) and recovery values of 99 +/- 3%.

引用

页码：90 / 96

页数：7

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