【摘 要】
：
An organically modified silicate (ORMOSIL) based optical sensor response to gaseous O2 or O2 dissolved in water is presented. The oxygen sensing film mechanism
【机 构】
：
Key Laboratory of Analytical Sciences of Ministry of Education,Department of Applied Biology and Che
【基金项目】
：
国家自然科学基金;CRGC joint research project
论文部分内容阅读
An organically modified silicate (ORMOSIL) based optical sensor response to gaseous O2 or O2 dissolved in water is presented. The oxygen sensing film mechanism is based on the principle of fluorescence quenching of tris(4,7-diphenyl-1,10-phenanthroline) ruthenium ( Ⅱ )([Ru(dpp)3]2+), which has been entrapped in a porous ORMOSIL film. In order to establish optimum film-processing parameters, comprehensive investigations, including the effects of the polarity and the hydrophobicity of the sensing film on oxygen quenching response and response time, were carried out. The film hydrophobicity increased as a function of dimethyldimethoxysilane (DiMe-DMOS) content, which is correlated with enhanced oxygen sensor performance. The sensor developed in the present work exhibits the advantages of fast response time and good reversibility. The detection limits are 0. 50% and 0. 3μg/Ml for O2 in the gaseous and the aqueous phases, respectively.
其他文献
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7
The semileptonic decays of meson Bc to a P-wave charmonium state χc(3PJ) or hc(1P1) are computed. The results show that the decays are sizable so they are acce
The title compound, (H2en) 3H3O { MosV4O36 (VO4) (VO) 2 } · 4H2O, was hydrothermally synthesized and structurally characterized by means of IR, ESR spectrum an
A perturbative approach is used to study the AC response of nonlinear composite media, which obey a current-field relation of the form J = σ E + χ|E|2 E with
A new organic/inorganic hybrid nonlinear optical (NLO) material was developed by the sol-gel process of an alkoxysilane dye with tetraethoxysilane. A NLO moiety
采用离子掺杂价态补偿原理,在Cu-Zn-Al甲醇合成催化剂中添加适量氧化锆助剂研制Cu-Zn-Al-Zr催化剂的特性.实验结果表明,最佳反应温度为230°C,比Cu-Zn-Al约低l0°C.采用XRD、
We consider a simple collinear collision ofa "classical" particle with a harmonic oscillator within quantum semiclassical model and full quantum dynamics model,
With the strong-field scheme and cubic bases, the complete d3 energy matrix in a tctragonally distorted cubic-field has been constructed. By diagonalizing this
Zirconium monohydride bonded to the framework oxygen of MCM-41 surface was prepared by the reaction of tetraneopentyl zirconium with MCM-41 surface hydroxyl gro
In a 0.10 mol/L Hac-NaAc buffer solution(pH= 4.59), a sensitive reduction peak of bleomycin was observed by linear sweep voltammetry at a Co/GC ion implantation