Qualitative colorimetric analysis of a Ir(iii)/Eu(iii) dyad in the presence of chemical warfare agents and simulants on a paper matrix

Genevieve H Dennison; Christophe Curty; Alexander J Metherell; Eva Micich; Andreas Zaugg; Michael D Ward

doi:10.1039/c9ra00824a

Qualitative colorimetric analysis of a Ir(iii)/Eu(iii) dyad in the presence of chemical warfare agents and simulants on a paper matrix

RSC Adv. 2019 Mar 6;9(14):7615-7619. doi: 10.1039/c9ra00824a.

Authors

Genevieve H Dennison¹, Christophe Curty², Alexander J Metherell³, Eva Micich¹, Andreas Zaugg², Michael D Ward⁴

Affiliations

¹ Land Division, Defence Science and Technology Group Fishermans Bend Melbourne Australia Genevieve.Dennison@dst.defence.gov.au.
² Organic Chemistry Branch, Federal Office for Civil Protection (FOCP), Spiez Laboratory Spiez Switzerland.
³ Department of Chemistry, University of Sheffield Sheffield S3 7HF UK.
⁴ Department of Chemistry, University of Warwick Coventry CV4 7AL UK m.d.ward@warwick.ac.uk.

Abstract

The addition of G- and V-series organophosphorus chemical warfare agents and simulants to a paper-based assay of a dual-luminescent Ir(iii)/Eu(iii) dyad generated different emissive responses between the classes and compound types. The emission responses are complex and based not only on altering the balance between red Eu(iii)-based and blue Ir(iii)-based luminescent components, but also incorporate other factors such as analyte volatility, concentration and UV absorption. The extent of this emission colour change was analysed colorimetrically and related to the change in RGB output over time.