The discrimination potential of ultraviolet-visible spectrophotometry, thin layer chromatography, and Fourier transform infrared spectroscopy for the forensic analysis of black and blue ballpoint inks

The knowledge of the discriminating power of analytical techniques used for the differentiation of writing inks can be useful when interpreting results. Ultraviolet-visible (UV-VIS) spectrophotometry, thin layer chromatography (TLC), and diffuse reflectance Fourier transform infrared spectroscopy (FT-IR) were used to examine a population of 21 black and 12 blue ballpoint writing inks. Based on corroborative results of these methods, the discrimination power for UV-VIS, TLC, and FT-IR was determined to be 100% and 98% for the black and blue inks, respectively. Generally, TLC and UV-VIS can be used to differentiate the colorant components (i.e., dyes and some pigments) found in inks. As FT-IR can be utilized to identify some of the noncolorant components, it was determined to be an excellent complementary technique that can be implemented into an analytical scheme for ink analysis.     

State–defence industry relations in the European context: French and UK interactions with the European Defence Agency

While many have noted that EU member states have different preferences over the prospect of an integrated EU defence, analyses that specifically explore state–industry relations in the definition of EU defence-industrial issues, and in the evolution of the Common Security and Defence Policy in general, are lacking. This is surprising, given that different configurations of government–industry relations have represented a persistent impediment to European defence-industrial cross-border collaboration. This article investigates how state–defence industry relations impact on member states’ preferences towards the EU defence-industrial framework. Based on the case studies of the interaction of France and the UK with the European Defence Agency, this analysis focuses on the difference between public and private defence firms’ governance settings as the crucial explanatory variable accounting for diverging member states’ preferences in this domain.