公开(公告)号：US06235532B1

公开(公告)日：2001-05-22

申请号：US09341155

申请日：1999-07-22

申请人： Deepak Gulabrai Uttamchandani ,  Robert George Blue

发明人： Deepak Gulabrai Uttamchandani ,  Robert George Blue

IPC分类号： G01N3326

CPC分类号： G01N21/7703 ,  G01N31/22 ,  G01N33/2841 ,  Y10T436/200833

摘要： Sensing the presence of furfuraldehyde (FFA) in oil is effected by a porous solid sensor (10) comprising aniline acetate entrapped in an inert matrix. The matrix may be a sol-gel preferably based on methyltrimethoxysilane. The solid sensor (10) reacts with FFA to form a pink colored complex which has a characteristic which correlates with the concentration of FFA in the oil and which can be measured photo-optically. Photo-optical measurement may be by absorption or fluorescence when the sensor is irradiated with an interrogating beam. The absorption maximum wavelength is about 525 nm and irradiation at that wavelength produces a maximum fluorescent output at about 570 nm.

摘要翻译： 感测油中糠醛（FFA）的存在通过包含苯胺乙酸盐包埋在惰性基质中的多孔固体传感器（10）来实现。 基质可以是优选基于甲基三甲氧基硅烷的溶胶 - 凝胶。 固体传感器（10）与FFA反应形成粉红色复合物，其具有与油中FFA浓度相关的特征，可以光学测定。 传感器用询问光束照射时，光学测量可能是吸收或荧光。 吸收最大波长为约525nm，并且在该波长处的照射在约570nm处产生最大荧光输出。