Dyes for use in integrated optical sensors

被引：9
作者：
Citterio, D
Jenny, L
Rasonyi, S
Spichiger, UE
机构：
[1] Ctr. Chem. Sensors/Biosensors B., Swiss Fed. Institute of Technology, Technopark
[2] Department of Chemistry, Swiss Fed. Institute of Technology, Zurich
[3] Swiss Fed. Institute of Technology, Zurich
[4] Ctr. Chem. Sensors/Biosensors B., Swiss Fed. Institute of Technology, Zurich
来源：
SENSORS AND ACTUATORS B-CHEMICAL | 1997年 / 39卷 / 1-3期
关键词：
integrated optical sensors; near-infrared dyes; chromoionophores; plasticizers;
D O I：
10.1016/S0925-4005(97)80204-3
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
In order to use chemically selective optode membranes in monolithically integrated optical sensors, the membrane's optical signal output ideally has to be in the near-infrared (NIR) wavelength range. Dyes showing light absorbance in the NIR range have been evaluated for their suitability as chromoionophores in plasticized poly(vinyl chloride) (PVC) membranes. The influence of the membrane plasticizer polarity on the optical properties and on the acidity of the dye has been investigated. It is shown that the pK(a) of the chromoionophore in the membrane phase can be shifted by changing the plasticizer polarity.
引用
收藏
页码：202 / 206
页数：5
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