A Simple Strategy to Improve the Accuracy of the Injection Step in Batch Injection Analysis Systems with Amperometric Detection

被引：27

作者：

Gimenes, Denise Tofanello ^{[1
]}

Pereira, Polyana Fernandes ^{[1
]}

Cunha, Rafael Rodrigues ^{[1
]}

Bezerra da Silva, Rodrigo Amorim ^{[1
]}

Abarza Munoz, Rodrigo Alejandro ^{[1
]}

Richter, Eduardo Mathias ^{[1
]}

机构：

[1] Univ Fed Uberlandia, Inst Quim, Uberlandia, MG, Brazil

来源：

ELECTROANALYSIS | 2012年 / 24卷 / 09期

关键词：

Reproducible manual injection; Internal standard method; Amperometric detection; BIA; BORON-DOPED DIAMOND; FLOW-INJECTION; ELECTROCHEMICAL DETECTION; ELECTRODES; PARACETAMOL; CYSTEINE; ETHANOL; TIME;

D O I：

10.1002/elan.201200254

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

In this study, we describe for the first time the application of an internal standard method to compensate for random errors associated with the injection procedure in batch injection analysis (BIA) systems with multiple pulse amperometric detection. A sequence of potential pulses was selected in such a way that the internal standard (IS) compound was detected individually at one potential pulse and both the IS and analyte, were detected at another potential pulse. The current ratio (IIS+analyte/IIS) was used in the construction of the calibration curve and then to compensate for random errors. The use of disposable syringes or manual pipettes in BIA systems increases the robustness of the method and dispenses with skilled operators.

引用

页码：1805 / 1810

页数：6

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