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将1,4-二(萘[2,1-d]并(口恶)唑-2’)苯(BNOB)包埋在增塑的聚氯乙烯膜中,基于甲硝唑对BNOB的可逆猝灭,研制了一种甲硝唑荧光光纤传感器,传感器可逆性好,响应时间小于40s,响应线性范围为8.0×1O~(-6)~1.0×10~(-(?))mol·L~(-1),检出限为4.O×10~(-6)mol·L~(-1),常见的无机离子、药物不干扰甲硝唑的测定,传感器用于药品制剂中甲硝唑的测定,结果与药典法一致. 相似文献
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Firstly, according to the regulation of growth and decay of radioactive nuclides produced in reactions, a formula used to calculate the total activation cross section of all possible reactions producing the same radioactive nuclide for the same element is deduced, and it is pointed out that the activation formula given in two references is incorrect. Then, as an example, the so-called total activation cross section in one of the two references is analyzed and the correct results of the cross sections of 182W(n,p)182(m m+g)Ta, 183W(n,p)183Ta and 206Pb(n,α)203Hg induced by neutrons around 14 MeV calculated with the data given in the literature, the nuclear parameters and some evaluated values are given. Finally, the correct results are compared with other values collected in the literature. 相似文献
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本讨论他一类非线性森林发展系统,利用临界增生率要概念和算子的实特征值,讨论了系统解的渐近性质。 相似文献
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ZHAO Ganqing XIE Jimin* LU Xiaoqing SUN Lu . College of Chemistry & Chemical Engineering Jiangsu University Zhenjiang China . College of Chemistry Chem. Eng. Pingdingshan University Pingdingshan China 《Chinese Journal of Reactive Polymers》2006,(2)
1. INTRODUCTION The partial oxidation of alkenes (forming acids, aldehydes and alcohols) is of considerable interest to the chemical industry. In most cases, more than one oxygenated product is formed from a given starting material and all products are susceptible to complete oxidation to carbon dioxide and water [1]. As mimetic oxygen carrier or oxidation catalyst, metalloporphyrins have been widly studied [2~7]. Among the non-porphyrin systems, the manganese complexes of Schiff base are… 相似文献
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