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Ref. No. [UMCES] CBL 2015-010
ACT VS15-03
During the freshwater trials, salinity was maintained to within 0.11 units (range = 0.19 to
0.30) with an average of 0.26 and temperature to within 0.9
o
C for each set point (Fig. 5 top).
The first temperature trial ranged from 9.96 to 10.28
o
C, with an average of 10.0
o
C, the second
temperature trial ranged from 20.00 to 20.91
o
C, with an average of 20.22
o
C, and the third
temperature trial ranged from 29.73 to 30.55
o
C, with an average of 30.42
o
C. Time series results
of the Idronaut 305 Plus, Metrohm data and reference pH data are shown in middle panel and the
time series of the calculated difference between instrument and reference pH are shown in the
bottom panel. The average difference between the Idronaut 305 Plus and reference pH for the
freshwater component was -0.308 ± 0.132, with a total range of -0.502 to -0.112 (N=62).
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