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

2. The Problem Laboratory Testing OndaVia System
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-minute test for $50

3. Broad Applicability Pre-treatment or pre-concentration methods
OndaVia’s technology replaces lab testing for any compound in any liquid.
Chemicals
Applications
Amines
Corrosion control
Triazines
H2S scavenging, pesticides
Se, As, Cr
Waste water
TCE, DBP
Environmental, drinking water
Lead
Drinking low-ppb levels
Pre-treatment or pre-concentration methods
Instrument and software
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) Applications
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)
Facility
ICP/MS (ppb)
OndaVia (ppb)
1 (untreated)
400
405
2 (untreated)
370
420
1 (treated) 55 ND
2 (treated)
160
1 (treated, ox) -- 70
2 (treated, ox)
145
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.
Arsenic and TCE work funded under NIH/NIEHS SBIR Phase I grants 1R43ES and 1R43ES026513