NMR spectroscopic analysis of 2-mercapto-5-methyl-1,3,4-thiadiazole in cefazolin.
A rapid, sensitive, and accurate method for the quantitative analysis of 2-mercapto-5-methyl-1,3,4-thiadiazole in cefazolin is presented. The method utilizes NMR spectroscopy and is based on the difference in the chemical shift of the methyl protons on free thiadiazole and the thiadiazole moiety of cefazolin.
NMR analysis of pharmaceuticals. X. Determination of methsuximide and phensuximide in capsules.
Abstract A method for the quantitative analysis of methsuximide and phensuximide using NMR is reported. For samples of the pure drugs, results were accurate to 0.3% or less with standard deviations of 0.6% or less. Analysis of capsules of each drug by NMR and NF XIII procedures indicated a maximum difference of 1.5%. but generally the difference was less than 1.0%. This procedure is recommended for the analysis of these drugs since it provides good quantitative results together with a unique spectrum as confirmatory identification.
The Millennial of Castile (1943): the historical culture of Spanish Fascism
Abstract The creation of new symbols and historical myths were common practices of nationalist politics, especially in Fascist regimes. In 1943 the Franco regime organized the most impressive historical commemoration celebrated in post-war Spain: the Milenario of Castile. With its heterogeneous mixture of history and spectacle, the Milenario of Castile was by far the greatest historical commemoration promoted by the State during the 1940s. Taking the commemoration of the Milenario as a case study, this article examines the historical culture of Spanish Fascism, as well as the attempts of the Falangist intellectual elite to impose a concrete national narrative in post-war Spain. At the same time, the article analyses the historical discourses and aesthetics displayed throughout the commemoration, underlining its Fascist character, and consequently the transnational dimension of the Fascist politics of the past. Finally, the article reflects on the scope and limits of the process of Fascistisation in Franco's dictatorship, especially in its commemorative culture.