Ocean Optics Transmissive pH Probe - Manual (Page 10)

pH Probe Instructions
10 PH-BCG-TRANS-01-0210
Performing a linear fit gives a line with pK equal to the y-intercept and slope equal to the slope. In the
example chart above, the new pK value would be 6.2977 and the new slope value would be 1.7248.
Specifications
Specification Ocean Optics pH Probe Value
pH Range 5 – 9
Temperature Range -5 – 80°C
Accuracy <1% of reading across range
Resolution 0.02 pH
Response Time (t
90
) 30 seconds
Response time increases with decreasing ionic strength
Calibration Requirements (minimum) 3 buffers
Sterilization Gamma, EtO, Autoclave
Chemical Compatibility Aqueous, alcohols, some organic solvents, peroxides,
ammonia, sodium hypochlorite
Chemicals to Avoid Concentrated acids
Drift (Continuous Stability) 1% per day
Discrete Stability (Lifetime) 50 uses or more, dispose when absorbance at
pH 11 < 0.1 (assumes pH 1 reference)
Storage Conditions Dry or wet storage