Orpen, Dylan, Fay, Cormac ORCID: 0000-0001-9104-5527, Beirne, Stephen, O'Toole, Martina, Lau, King-Tong ORCID: 0000-0001-7818-7010, Corcoran, Brian and Diamond, Dermot ORCID: 0000-0003-2944-4839 (2011) Ultra low cost LED based gas sensing. In: Photonics Ireland 2011, 7-9 Sept 2011, The Grand Hotel, Malahide, Dublin..

O'Toole, Martina, Barron, Leon, Shepherd, Roderick, Nesterenko, Pavel, Paull, Brett and Diamond, Dermot ORCID: 0000-0003-2944-4839 (2009) Paired emitter-detector diode detection with dual wavelength monitoring for enhanced sensitivity to transition metals in ion chromatography with post-column reaction. The Analyst, 134 (1). pp. 124-130. ISSN 1364-5528

O'Toole, Martina, Shepherd, Roderick, Wallace, Gordon and Diamond, Dermot ORCID: 0000-0003-2944-4839 (2009) Inkjet printed LED based pH chemical sensor for gas sensing. Analytica Chimica Acta, 652 (1-2). pp. 308-314. ISSN 0003-2670

O'Toole, Martina and Diamond, Dermot ORCID: 0000-0003-2944-4839 (2008) Absorbance based light emitting diode optical sensors and sensing devices. Sensors, 8 (4). pp. 2453-2479. ISSN 1424-8220

O'Toole, Martina, Lau, King-Tong ORCID: 0000-0001-7818-7010, Shepherd, Roderick, Slater, Conor and Diamond, Dermot ORCID: 0000-0003-2944-4839 (2007) Determination of phosphate using a highly sensitive paired emitter-detector diode photometric flow detector. Analytica Chimica Acta, 597 (2). pp. 290-294. ISSN 0003-2670

O'Toole, Martina, Shepherd, Roderick, Lau, King-Tong ORCID: 0000-0001-7818-7010 and Diamond, Dermot ORCID: 0000-0003-2944-4839 (2007) Detection of nitrite by flow injection analysis using a novel paired emitter-detector diode (PEDD) as a photometric detector. In: Advanced Environmental, Chemical, and Biological Sensing Technologies V, 10 September 2007, Boston, MA, USA.

O'Toole, Martina (2007) Novel integrated paired emitter-detector diode flow analysis system. PhD thesis, Dublin City University.

O'Toole, Martina, Lau, King-Tong ORCID: 0000-0001-7818-7010, Schazmann, Benjamin, Shepherd, Roderick, Nesterenko, Pavel, Paull, Brett and Diamond, Dermot ORCID: 0000-0003-2944-4839 (2006) Novel integrated paired emitter-detector diode (PEDD) as a miniaturized photometric detector in HPLC. The Analyst, 131 (8). pp. 938-943. ISSN 1364-5528

O'Toole, Martina, Lau, King-Tong ORCID: 0000-0001-7818-7010 and Diamond, Dermot ORCID: 0000-0003-2944-4839 (2005) Photometric detection in flow analysis systems using integrated PEDDs. Talanta, 66 (5). pp. 1340-1344. ISSN 0039-9140