Roche P, Al-Jowder R, Narayanaswamy R, Young J, Scully P
School of Chemical Engineering and Analytical Science, University of Manchester, Manchester M60 1QD, UK.
Anal Bioanal Chem. 2006 Nov;386(5):1245-57. doi: 10.1007/s00216-006-0787-5. Epub 2006 Sep 16.
A novel luminescent lifetime optrode is presented for the detection of gaseous and dissolved oxygen. The optrode utilises ruthenium (4,7-diphenyl-1,10-phenanthroline)(3)Cl(2) as the sensing fluorophore immobilised in a hydrophobic ormosil matrix. The ormosil matrix is synthesised at room temperature from octyltriethoxysilane and methyltriethoxysilane precursors. Investigations of different ormosils were conducted and the most effective one was selected for optrode production. Optrodes were tested for responses to gaseous and dissolved oxygen. Their responses were modelled using traditional two-site or two-exponential methods and feed-forward artificial neural networks. Comparison of the two modelling methodologies is presented and further improvements in modelling and ormosil design are suggested.
提出了一种用于检测气态氧和溶解氧的新型发光寿命光极。该光极利用钌（4,7-二苯基-1,10-菲咯啉）（3）Cl（2）作为固定在疏水性有机硅玻璃基质中的传感荧光团。有机硅玻璃基质在室温下由辛基三乙氧基硅烷和甲基三乙氧基硅烷前体合成。对不同的有机硅玻璃进行了研究，并选择了最有效的一种用于光极生产。对光极进行了气态氧和溶解氧响应测试。使用传统的双位点或双指数方法以及前馈人工神经网络对其响应进行建模。给出了两种建模方法的比较，并提出了建模和有机硅玻璃设计方面的进一步改进建议。
