Using the OI pHDetect to Automate pH Determination After Running VOC’s by P&T GCMS

Topics in Drinking Water
Poster Presentation

Prepared by W. Lipps
Eurofins Eaton, 750 Royal Oaks Drive Suite 100, Monrovia, CA, 91016, United States

Contact Information:; 626-386-1100


Commercial laboratories are required to verify that samples were preserved properly prior to analysis of laboratory samples. An exception is Volatile Organic Compound (VOC) analysis where to avoid loss of VOCs pH must be determined after the test is completed. This pH check requires opening each sample vial, immersing a pH strip or paper, and estimating the pH. This extra step is time consuming and a burden to the laboratory. The OI Analytical pHDetect automates pH determination by adding a pH probe between the purge vessel and waste collection. This poster presents time saving and analysis results of our evaluation of the OI pHDetect.