1 / 10

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

anthonymarshall
Télécharger la présentation

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

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  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

More Related