Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Articles Article Faculty Publications -Articles Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Simultaneous first order derivative spectrophotometric determination of vanadium and zirconium in alloy steels and minerals Subject The topic of the resource Derivative spectrophotometry; Diacetylmonoxime salicyloylhydrazone; Simultaneous; Vanadium(V); Zirconium(IV) Description An account of the resource A simple, selective and sensitive spectrophotometric method has been developed for the individual and simultaneous determination of trace amounts of vanadium(V) and zirconium(IV) in acetic acid medium using a newly synthesised reagent diacetylmonoxime salicyloylhydrazone (DMSH), without any prior separation. The molar absorptivity and Sandell's sensitivity of the coloured species are 1.30 x 10 4 and 1.82 x 10 4 Lmol -1cm -1 and 3.9 and 2.5 ng cm -2 for V(V) and Zr(IV), respectively. Beer's law is obeyed between 0.26-2.80 and 0.30-3.20 ?g mL -1 concentration of vanadium (V) and zirconium (IV) at 405 and 380 nm respectively. The stoichiometry of the complex was found to be 1:1 (metal:ligand) for V(V) and 1:2 for Zr(IV) complexes. These metal ions interfere with the determination of each other in zero order spectrophotometry. The first derivative spectra of these complexes permitted a simultaneous determination of V(V) and Zr(IV) at zero crossing wavelengths of 445 nm and 405 nm, respectively. The optimum conditions for maximum colour development and other analytical parameters were evaluated. The proposed method has been successfully applied for the determination of zirconium and vanadium in standard alloy steel samples, mineral and soil samples. 2012 Elsevier B.V. All rights reserved. Creator An entity primarily responsible for making the resource Varghese A.; George L. Source A related resource from which the described resource is derived Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy, Vol-95, pp. 46-52. Date A point or period of time associated with an event in the lifecycle of the resource 2012-01-01 Identifier An unambiguous reference to the resource within a given context <a href="https://doi.org/10.1016/j.saa.2012.04.092" target="_blank" rel="noreferrer noopener">https://doi.org/10.1016/j.saa.2012.04.092</a> <br /><br /><a href="https://www.scopus.com/inward/record.uri?eid=2-s2.0-84862157084&amp;doi=10.1016%2Fj.saa.2012.04.092&amp;partnerID=40&amp;md5=be656bcebd4699d4c3bc70c788b167e3" target="_blank" rel="noreferrer noopener">https://www.scopus.com/inward/record.uri?eid=2-s2.0-84862157084&amp;doi=10.1016%2fj.saa.2012.04.092&amp;partnerID=40&amp;md5=be656bcebd4699d4c3bc70c788b167e3</a> Rights Information about rights held in and over the resource Restricted Access Relation A related resource ISSN: 13861425; PubMed ID: 22613123; CODEN: SAMCA Format The file format, physical medium, or dimensions of the resource Online Language A language of the resource English Type The nature or genre of the resource Article Coverage The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant Varghese A., Department of Chemistry, Christ University, Bangalore 560 029, India; George L., Department of Chemistry, Christ University, Bangalore 560 029, India