Highly Specific and Wide Range NO2 Sensor with Color Readout

被引：16

作者：

Fabrega, Cristian ^{[1
,2
]}

Fernandez, Luis ^{[1
]}

Monereo, Oriol ^{[1
]}

Pons-Balague, Alba ^{[1
]}

Xuriguera, Elena ^{[2
,3
]}

Casals, Olga ^{[1
,2
]}

Waag, Andreas ^{[4
,5
]}

Daniel Prades, Joan ^{[1
,2
]}

机构：

[1] Univ Barcelona, MIND Dept Elect & Biomedial Engn, C Marti i Franques 1, E-08028 Barcelona, Spain

[2] Univ Barcelona, Inst Nanosci & Nanotechnol IN2UB, C Marti i Franques 1, E-08028 Barcelona, Spain

[3] Univ Barcelona, DIOPMA, Dept Ciencia Mat & Quim Fis, C Marti i Franques 1, E-08028 Barcelona, Spain

[4] Braunschweig Univ Technol, Inst Semicond Technol, D-38106 Braunschweig, Germany

[5] Braunschweig Univ Technol, Lab Emerging Nanometrol LENA, D-38106 Braunschweig, Germany

来源：

ACS SENSORS | 2017年 / 2卷 / 11期

基金：

欧盟地平线“2020”; 欧洲研究理事会;

关键词：

NO2; sensor; colorimetry; Griess-Saltzman; pollutant; monitoring; environment; NITROGEN-DIOXIDE; OUTDOOR;

D O I：

10.1021/acssensors.7b00463

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We present a simple and inexpensive method to implement a Griess-Saltzman-type reaction that combines the advantages of the liquid phase method (high specificity and fast response time) with the benefits of a solid implementation (easy to handle). We demonstrate that the measurements can be carried out using conventional RGB sensors; circumventing all the limitations around the measurement of the samples with spectrometers. We also present a method to optimize the measurement protocol and target a specific range of NO2 concentrations. We demonstrate that it is possible to measure the concentration of NO2 from SO ppb to 300 ppm with high specificity and without modifying the Griess-Saltzman reagent.

引用

页码：1612 / 1618

页数：7

共 13 条

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