Alcohol analysis using a gold-coated unclad fiber sensor system

被引：0
|
作者：
Mitsushio, M
Kamata, S
机构：
[1] Kagoshima Univ, Grad Sch Engn, Dept Appl Chem Engn, Kagoshima 8900065, Japan
[2] Kagoshima Univ, Fac Engn, Dept Appl Chem Engn, Kagoshima 8900065, Japan
来源：
BUNSEKI KAGAKU | 1999年 / 48卷 / 08期
关键词：
optical fiber; evanescent wave; laser; ethanol; ethylene glycol; liquors;
D O I：
暂无
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A sensor system using an optical fiber was developed and its response was tested to ethanol and ethylene glycol in water. The clad was removed from the fiber with sulfuric acid and its fiber core was coated with a gold film. The gold-coated unclad fiber responded rapidly and sensitively to the examined reagents, as compared to an unmodified unclad fiber. The calibration graph of transmittance vs. concentration showed a good relation in the range of 0 similar to 80% for ethanol and 0 similar to 40% for ethylene glycol. The detection limit was 0.5%. It was found that these alcohols could be determined in real time. The alcohol content in liquors (Shochu), which was determined directly by this method, showed 25.2 v/v%, very mean to the value (25 v/v%) indicated on the label of the Shochu bottle.
引用
收藏
页码：757 / 762
页数：6
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