Ocean Optics Transmissive pH Probe - Manual

PH-BCG-TRANS-01-0210 1
Transmissive pH Probe
Instructions
Overview
Ocean Optics’ fully integrated pH systems provide full spectral analysis to help eliminate errors from
dye leaching or from changes in turbidity, temperature, and ionic strength. Inherent calibration based
on the physical properties of the immobilized indicator dye eliminates the need for frequent
calibration. The ratiometric algorithm provides accurate and reproducible measurements at a high
resolution.
The Transmissive pH Probe’s form factor provides very fast response with high signal strength,
though is limited to clear, non-turbid solutions. These sensors are compatible with aqueous solutions,
ethanol/methanol solutions, ammonia, peroxides, and sodium hypochlorite solutions.
Transmissive Probes and Patches
The pH sensory substrates use a sol gel sensing material coated onto a transmissive patch. The
immobilized indicator dye(s) are encapsulated into the sol gel matrix, allowing for the diffusion of
ions while preventing leaching of the dye. The sensors provide very accurate measurements in the
biological range, from pH 5 to 9. Advantages of these probes over traditional potentiometric devices
include faster response time, easy storage and no maintenance, and low cost. These are especially
useful for monitoring low conductivity samples such as boiler water, where electrode devices fail.
Software Interface
The Transmissive pH Probes can be used with a desktop system or the Jaz handheld spectrometer. The
desktop system uses a special SpectraSuite software module that allows for easy calibration,
convenient pH readings, customizable data logging, and comprehensive export of data and calibration
values.