3D-printed Microfluidic Device Based on Cotton Threads for Amperometric Estimation of Antioxidants in Wine Samples

被引：33

作者：

Carneiro, Emmanuelle A. ^{[1
]}

Agustini, Deonir ^{[1
]}

Figueiredo-Filho, Luiz C. S. ^{[2
]}

Banks, Craig E. ^{[3
]}

Marcolino-Junior, Luiz Humberto ^{[1
]}

Bergamini, Marcio F. ^{[1
]}

机构：

[1] Univ Fed Parana UFPR, Dept Quim, Lab Sensores Eletroquim LabSensE, BR-81531980 Curitiba, Parana, Brazil

[2] Inst Fed Parana, Campus Paranavai, BR-87703536 Paranavai, PR, Brazil

[3] Manchester Metropolitan Univ, Fac Sci & Engn, Chester St, Manchester M1 5GD, Lancs, England

来源：

ELECTROANALYSIS | 2018年 / 30卷 / 01期

关键词：

Low cost material; 3D-printed microfluidic device; gallic acid; caffeic acid; thread-based electroanalytical devices; ELECTROCHEMICAL SENSOR; AQUEOUS-SOLUTIONS; CAFFEIC ACID; GALLIC ACID; CAPACITY; FRUIT; ELECTRODES; INDEX; FOODS;

D O I：

10.1002/elan.201700579

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The present work describes the evaluation of microfluidic electroanalytical devices constructed by a 3D printer using ABS (acrylonitrile butadiene styrene) polymer combined with cotton threads as microchannels. Screen-printed carbon electrodes (SPCEs) were used as electrochemical detector for amperometric determination of gallic and caffeic acid in wine samples. Using optimal experimental conditions (flow rate of 0.71Ls(-1), applied potential of +0.30V and volume of injection of 2.0L) the proposed method presented a linear response for a concentration range of 5.0x10(-6) to 1.0x10(-3)molL(-1). The detection limits for gallic and caffeic acid were found to 1.5x10(-6)molL(-1) and 8.0x10(-7)molL(-1), respectively, with a sample throughput of 43h(-1). The achieved results are in agreement with those found using the official Folin-Ciocaulteu method.

引用

页码：101 / 108

页数：8

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