A-1
In the YSI 2700 SELECT menu selection procedure you have the option to assign units of
concentration. You will find this in the Setup Menu under measurement parameters, black and
white probes. There are default values set based on calibration solutions offered by YSI. Below
is a table of unit conversions for these calibration solutions and other concentrations of interest.
Chemistry
g/L
mg/L
(ppm)
%
(w/v)
mmol/L
mw
(g/mole)
Choline
0.18
175
0.018
1.68
(104)
Dextrose
2.50
2500
0.25
13.89
(180)
Ethanol
2.00
2000
0.20
43.48
(46)
Galactose*
2.50
2500
0.25
13.89
(180)
L-Glutamate
0.73
731
0.07
5.00
(146)
L-Glutamine
0.73
731
0.07
5.00
(146)
L-Lactate
0.50
500
0.05
5.62
(89)
Lactose
5.00
5000
0.50
14.62
(342)
Methanol
1.00
1000
0.10
31.25
(32)
Peroxide*
0.60
600
0.06
17.65
(34)
Sucrose
5.00
5000
0.50
14.62
(342)
* Denotes that YSI does not currently offer this standard value.
If you are preparing your own standard of a value not listed in the preceding table, refer to the
example conversions on the next page to help calculate your unit of choice. If you change units,
remember to enter the appropriate numerical value when prompted by the display. Only the
default values listed above will be automatically converted by the instrument software.
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