eprintid: 10077827 rev_number: 20 eprint_status: archive userid: 608 dir: disk0/10/07/78/27 datestamp: 2019-07-16 16:59:58 lastmod: 2021-10-20 23:54:13 status_changed: 2019-07-16 16:59:58 type: article metadata_visibility: show creators_name: McLaughlin, MHS creators_name: Pakpour-Tabrizi, AC creators_name: Jackman, RB title: Diamond Electrodes for High Sensitivity Mercury Detection in the Aquatic Environment: Influence of Surface Preparation and Gold Nanoparticle Activity ispublished: pub divisions: UCL divisions: B04 divisions: C05 divisions: F46 keywords: Diamond, Mercury, Gold, Nanoparticles note: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. abstract: This work compares polished and unpolished boron doped diamond (BDD) electrodes decorated with two sizes of gold nanoparticles (AuNPs) for use as robust mercury sensors in aquatic environments. The size of the catalytically active AuNPs on the electrode surfaces was demonstrated to have a less significant effect on the sensitivity for mercury detection than the surface preparation of the BDD. The lowest limits of detection were achieved with the polished BDD electrodes, which both detected mercury at a concentration of 1 pM, six orders of magnitude greater sensitivity than the lowest detection limit of 5 μM achieved with an unpolished BDD electrode, and high in comparison with other reported electrode systems. date: 2019-09 date_type: published official_url: https://doi.org/10.1002/elan.201900281 oa_status: green full_text_type: other language: eng primo: open primo_central: open_green verified: verified_manual elements_id: 1668187 doi: 10.1002/elan.201900281 lyricists_name: Jackman, Richard lyricists_id: RBJAC40 actors_name: Jackman, Richard actors_id: RBJAC40 actors_role: owner full_text_status: public publication: Electroanalysis volume: 31 number: 9 pagerange: 1775-1782 citation: McLaughlin, MHS; Pakpour-Tabrizi, AC; Jackman, RB; (2019) Diamond Electrodes for High Sensitivity Mercury Detection in the Aquatic Environment: Influence of Surface Preparation and Gold Nanoparticle Activity. Electroanalysis , 31 (9) pp. 1775-1782. 10.1002/elan.201900281 <https://doi.org/10.1002/elan.201900281>. Green open access document_url: https://discovery.ucl.ac.uk/id/eprint/10077827/1/ELAN-S-19-00279.pdf