Mercury optical fibre probe based on a modified cladding of sensitised Al2O3 nano-particles

被引：10
|
作者：
Perez-Hernandez, Javier [2 ]
Albero, Josep [2 ]
Llobet, Eduard [1 ]
Correig, Xavier [1 ]
Matias, Ignacio R. [3 ]
Arregui, Francisco J. [3 ]
Palomares, Emilio [2 ]
机构：
[1] Univ Rovira & Virgili, MINOS, Dept Elect Engn, Tarragona 43007, Spain
[2] Inst Chem Res Catalonia ICIQ, Tarragona 43007, Spain
[3] Univ Publ Navarra, Dept Elect & Elect Engn, Pamplona 31006, Spain
来源：
SENSORS AND ACTUATORS B-CHEMICAL | 2009年 / 143卷 / 01期
关键词：
Mercury; Optical fibre; Alumina; PLS; ALUMINUM-OXIDE; SENSOR; OPTODE; HG(II);
D O I：
10.1016/j.snb.2009.08.051
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
We report an optical fibre probe for mercury detection based on a sensitised alumina cladding. The interaction between the sensitive material and the guided light wave is effected by means of evanescent-field coupling. wherein the colorimetric changes of a Ru(II)-bis-thiocyanate complex modulate the light intensity. The improvement of the water stability measurements of the system has been achieved by treating the alumina clad in sulphuric acid before dye adsorption. A partial least squares calibration model employing spectral features from the optode response enables estimating mercury concentration at a range between 0 and 6 ppm. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：103 / 110
页数：8
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