horiba F-74BW, Инструкция по эксплуатации

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Chapter 3 Basic Operation
3.3 Calibration
62 HORIBA
(2) Combination type ION electrodes
The combination type ion electrode are designed to allow its chip type
ion electrode to be replaced easily. If you measure some of the ion
species listed in the following table in addition to those included in the
standard specifications, change the chip type ion electrode and the
internal liquid in the reference part of the combination type ion
electrode. These changes allows you to perform measurement un up
to 5 ion species.
Each chip type ion electrode is available for purchase it is provided as
one of the standard accessories. In accordance with the target ion
species, select appropriate chip electrodes from the following table.
The applicable temperature range is 0
°
C to 50
°
C for all the electrodes.
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
6560-10C
Chloride
Cl
-
7660
(1 pc)
①
0.4 mg/L to 35000 mg/L
Cl
-
(1 to 10
-5
mol/L Cl
-
)
② pH3 to pH11
(350 mg/L Cl
-
)
③
-59 mV
NO
3
-
, F
-
, HCO
3
-
,
SO
4
2-
, PO
4
2-
= more
than 1000
SCN
-
=0.3
MnO
4
-
=0.1
Br
-
=0.03
S
2
O
3
2-
, S
2-
, I
-
, Ag
+
,
Hg
2+
= Not applicable
(At 10
-3
mol/L Cl
-
)
1 mol/L KNO
3
(100 g/L
Potassium
nitrate)
6561-10C
Fluoride
F
-
7661
(1 pc)
①
0.02 mg/L to 19000 mg/
L F
-
(1 to 10
-6
mol/L F
-
)
②
pH4 to pH10
(19 mg/L F
-
)
③
−
59 mV
OH
-
=10
Disturbance may
occur due to the
formation of complex
when polyvalent ions
such as Al
3+
, Fe
3
+
coexist.
3.33 mol/L KCl
(250 g/L
potassium
chloride)
6581-10C
Nitrate
NO
3
-
7681
(2 pcs)
①
0.62 mg/L to 62000 mg/
L NO
3
-
(1 to 10
-5
mol/L NO
3
-
)
② pH3 to pH7
(62 mg/L NO
3
-
)
③
−
55 mV
SO
4
2+
= more than
1000
CH
3
COO
-
=300
F
-
=200
Cl
-
=40
NO
2
-
=3
Br
-
=2
I
-
=0.1
ClO
4
-
=0.03
(At 10
-3
mol/L NO
3
-
)
1 mol/L KCl
(100 g/L
potassium
chloride)