All-in-one solid-state device based on a light-addressable potentiometric sensor platform

被引：36
|
作者：
Wagner, Torsten
Yoshinobu, Tatsuo
Rao, Chanwen
Otto, Ralph
Schoening, Michael J.
机构：
[1] Osaka Univ, Inst Sci & Ind Res, Ibaraki, Osaka 5670047, Japan
[2] Univ Appl Sci Aachen, Div Julich, Lab Chem Sensors & Biosensors, D-52428 Julich, Germany
[3] Res Ctr Julich GmbH, Inst Thin Films & Interfaces, D-52425 Julich, Germany
[4] Tohoku Univ, Dept Elect Engn, Aoba Ku, Sendai, Miyagi 9808579, Japan
来源：
SENSORS AND ACTUATORS B-CHEMICAL | 2006年 / 117卷 / 02期
关键词：
light-addressable potentiometric sensor (LAPS); multisensor; chemical sensor;
D O I：
10.1016/j.snb.2005.12.056
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A miniaturised 16-channel LAPS device together with a control and measurement software was developed. The sensor chip, the IR-LED array and the electronic unit are accommodated in a small cylinder, which can be directly filled with the solution to be investigated. By modifying the measuring spots with various ion-selective membranes, this device can measure the concentrations of up to 16 different ions in parallel. The individual behaviour of each sensor spot is investigated separately by dynamically varying the analyte composition, by modifying the distance of the 16 LEDs to the sensor chip, and by means of IR long-time exposure pictures. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：472 / 479
页数：8
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