Use a proprietary sol-gel formulation infused with a colorimetric pH indicator dye. This material is coated onto our exclusive patches to reflect light back through the central read fiber or to transmit light through in order to sense the color change of the patch at a specific wavelength.
While typical optical pH sensors are susceptible to drastic changes in performance in various ionic strength solutions, Ocean Optics’ sensory layer has been chemically modified to allow accurate sensing in both high and low salinity samples.
|At a glance|
|pH range||5 – 9|
|temperature range||-5°C / +70°C|
|transmissive accuracy||≤ 1% of reading across range|
|transmissive resolution||0.02 pH|
|transmissive response time||30 seconds|
|Calibration requirements||3 buffers|
|Sterilization||Gamma, EtO, Autoclave|
|Chemical compatibility||Aqueous, alcohols, some organic solvents, peroxides, ammonia, sodium hypochlorite|
The transmissive pH patches from Ocean Optics can be used with a desktop system as well as with the Jaz handheld spectrometer suite. The desktop system uses a module in our SpectraSuite software that allows for simplified calibration, convenient pH readings, customizable data logging and comprehensive exportation of data and calibration information. These disposable patches can be used with our DIP probes.
For field measurements, the handheld Jaz offers an easy and portable solution. Jaz’s SD card runs a script that allows you to use the factory calibration or a complete calibration. It also shows live pH values and gives you the ability to save data directly to the card.