horiba F-74BW, Инструкция по эксплуатации

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Chapter 3 Basic Operation
3.3 Calibration
F-74BW 63
*1: The allowable pH range for the value specified in the parentheses under the
measurable ion concentration. (pH range slightly changes depending on the ion
concentrations.)
*2: The change in electric potential at the electrode which occurs when the ion
concentration increased by 10 times (25
°
C).
*3: When the concentration of interfering ions has exceeds the value which is obtained by
multiplying the concentrations of the measured ions by the allowable coexistence limit,
the electric potential at the electrode is affected by interfering ions and this makes
measurement impossible.
(The effect by the coexistence of interfering ions decreases as the allowable
coexistence limit becomes larger or the concentrations of the measured ion become
higher.)
*4: The internal liquid types are not limited to the solutions listed in the table. You may use
other internal liquid so far as you have determined that its bleeding rarely interferes or
affects the electric potential at the electrode and less frequently causes electric
potential differences between the solutions.
6582-10C
Potassium
K
+
7682
(2 pcs)
①
0.04 mg/L to 39000 mg/
L K
+
(1 to 10
-6
mol/L K
+
)
② pH5 to pH11
(3.9 mg/L K
+
)
③
58 mV
Li
+
, Na
+
, Mg
2+
, Ca
2+
,
Sr
2+
, Ba
2+
= more
than 1000
NH
4
+
=70
Cs
+
=3
Rb
+
=0.4
(At 10
-4
mol/L K
+
)
3.33 mol/L NaCl
(200 g/L Sodium
chloride)
6583-10C
Calcium
Ca
2+
7683
(2 pcs)
①
0.40 mg/L to 40080 mg/
L Ca
2+
(1 to 10
-5
mol/L Ca
2+
)
②
pH5 to pH11
(4.0 mg/L Ca
2+
)
③
29 mV
Na
+
, K
+
, Ba
+
, NH
4
+
=
more than 1000
Mg
2+
=1000
Mn
2+
=500
Co
2+
=350
Ni
2+
, Cu
2+
=70
Sr
2+
=50
Fe
2+
, Zn
2+
=1
Fe
3+
=0.1
(At 10
-4
mol/L Ca
2+
)
3.33 mol/L KCl
(250 g/L
potassium
chloride)
Model and
ion type Applica-
ble chip
electrode
type
(quantity)
①
Measurable range
②
pH allowable range
*1
③
Electric potential
slope
*2
Interfering ions and
allowable limit for
their coexistence
*3
Reference
electrode (outer
cylinder) and
internal liquid
type
*4