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On-site, laboratory-grade, rapid-response testing

Definitive results. Decisive actions. On-site, laboratory-grade, rapid-response testing. The Problem. Traditional lab-based water analysis is slow. Laboratory Testing. OndaVia System. Collect sample (1-L bottle) Ship to lab (at 4°C) Wait for lab to test sample Wait for results

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On-site, laboratory-grade, rapid-response testing

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  1. Definitive results. Decisive actions. On-site, laboratory-grade, rapid-response testing

  2. The Problem Traditional lab-based water analysis is slow Laboratory Testing OndaVia System • Collect sample (1-L bottle) • Ship to lab (at 4°C) • Wait for lab to test sample • Wait for results • Receive (paper) test report • Collect sample (<10-mL) • Test (on-site, <5 minutes) • Analytics Three-week process for >>$50 On-site, 5-minutetest for $50

  3. Broad Applicability OndaVia’s technology replaces lab testing for any compound in any liquid. Instrument and software Pre-treatment or pre-concentration methods Analysis kit

  4. Technology and Product Based on our eSERS™ detection backed by eleven issued US Patents Monoethanolamine repeatability Average: 27.8±3.9 ppm Average: 76.4±5.1 ppm

  5. Selenium analysis • Regulatory limits (drinking water) • 50-ppb, although some States are lower • Applications • Refinery waste water • Coal-fired power plants / flue-gas desulfurization water • Current methods • ICP/MS and colorimetry

  6. Selenium speciation • Test is specific for Se(VI) • Se reduced during biological treatment of waste water • Oxidize treated water using bleach and/or H2O2 at high pH to convert all Se(IV) to Se(VI) Fieldable speciation test: • First measure Se(VI) • Oxidize to determine total • Se(IV) is the difference

  7. Arsenic analysis • Arsenic exists in natural waters predominantly as arsenite [As(III)] and arsenate [As(V)] • Regulatory limit: • 10-ppb total As in drinking water • But As(III) is more hazardous that As(V) • Current methods: • Total via colorimetry – arsenic is converted to As(III) and then to arsine gas • Speciation via HG-AAS

  8. Arsenic speciation Arsenite [As(III)] Arsenate [As(V)]

  9. Target Specifications Arsenic and selenium Trichloroethylene (TCE) • Five minute test • <10-ppb detection limit • Ability to speciate • As(III) vs As(V) • Se(IV) vs Se(VI) • Selenium commercially available, arsenic available for beta testing • Five minute test • 5-ppb detection limit • Still early stage (Phase I) TCE

  10. On-site, laboratory-grade, DIY, rapid-response testing • First ever commercial, quantitative analytical method using surface-enhanced Raman spectroscopy • Broad applicability from anions to metals to VOCs • Applications from QA/QC to process control to environmental monitoring and remediation Contact Mark Peterman OndaVia, Inc. 510-576-0476 info@ondavia.com Arsenic and TCE work funded under NIH/NIEHS SBIR Phase I grants 1R43ES025083 and 1R43ES026513

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