In 2019,Sensors and Actuators, B: Chemical included an article by Dugandzic, Vera; Kupfer, Stephan; Jahn, Martin; Henkel, Thomas; Weber, Karina; Cialla-May, Dana; Popp, Juergen. Related Products of 1539-42-0. The article was titled 《A SERS-based molecular sensor for selective detection and quantification of copper(II) ions》. The information in the text is summarized as follows:
A novel SERS-based mol. sensor for detection and quantification of copper(II) ions with very good specificity and selectivity is reported in this work. The sensing is enabled by the employment of a synthesized dipicolylamine-based ligand anchored onto plasmonic gold nanoparticles through the sulfur atom of the methylthio group. The interaction of the ligand with copper(II) ions is followed by changes in the spectral features associated with pyridine ring breathing, as indicated by quantum chem. calculations performed at the d. functional level of theory, which are proportional to the copper(II) concentration The detection of copper(II) was possible down to 5 × 10-8 M in water. The proposed mol. sensor was applied for the detection of copper(II) ions in white wine, with the ability to detect amounts of copper(II) in wine lower than the maximum recommended amount of 7.87 × 10-6 M (0.5μg/mL), indicating that the proposed mol. sensor is of potential interest as a routine test for the control of the copper(II) content in wine during wine production and in the final product. The experimental part of the paper was very detailed, including the reaction process of Bis(pyridin-2-ylmethyl)amine(cas: 1539-42-0Related Products of 1539-42-0)
Bis(pyridin-2-ylmethyl)amine(cas: 1539-42-0) is a secondary amine with two picolyl substituents. As a tridentate ligand this compound provides three nitrogen donors that affords good selectivity for Zn2+ over biologically relevant metals such as Na+, K+, Mg2+ and Ca2+, and leaves coordination sites free for anion binding. Related Products of 1539-42-0