NAVI F-52 - Page 249

Chapter 16 Reference
16.3 Ion measurement
236 HORIBA
Table 1 Reference value concerning ION electrode
Dia-
phragm
5002A-
10C
Ammonia
(NH
3
)
① 0.1 to 1000 mg/L NH
3
(1 to 10
-6
mol/L NH
3
)
② Adjust to pH 12 or
more.
③ -59 mV
④ 0 to 50 ℃
Volatile amine Because of the
composite type
ion electrode, the
reference elec
-
trode is not reqi-
ured.
Glass 1512A-
10C
Sodium
(Na
+
)
① 2.3 to 23000 mg/L
Na
+
(1 to 10
-4
mol/L Na
+
)
② more than pH 4.5
(2300 mg/L Na
+
)
③ +59 mV
④ 0 to 60 ℃
Ca
2+
=500
NH
4
+
=20
K
+
, Li
+
=10
2565A-10T
Sample
Liquid
mem
-
brane
8201-
10C
Nitrate
(NO
3
-
)
① 0.62 to 62000 mg/L
NO
3
-
(1 to 10
-6
mol/L NO
3
-
)
② pH 3 to 7
(62 mg/L NO
3
-
)
③ -55 mV
④ 0 to 50 ℃
SO
4
2+
=more than 1000
CH
3
COO
-
=300
F
-
=200
Cl
-
=40
NO
2
-
=3
I
-
=0.1
ClO
4
-
=0.02
( At 10
-3
mol/L NO
3
-
)
2565A-10T
1 mol/L KCl
(75 g/L potas-
sium chloride)
8202-
10C
Potassium
(K
+
)
① 0.04 to 39000 mg/L
K
+
(1 to 10
-6
mol/L K
+
)
② pH 5 to 11
(3.9 mg/L K
+
)
③ +58 mV
④ 0 to 50 ℃
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
+
)
2565A-10T
3.33 mol/L KCl
(200 g/L potas-
sium chloride)
8203-
10C
Calcium
(Ca
2+
)
① 0.4 to 40080 mg/L
Ca
2+
(10
-1
to 10
-6
mol/L Ca
2+
)
② pH 5 to 11
(4 mg/L Ca
2+
)
③ +29 mV
④ 0 to 50 ℃
Na
+
, K
+
, Ba
+
, NH
4
+
=more
than 1000
Mg
2+
, Ni
2+
, Cu
2+
=1000
Mn
2+
=500
Co
2+
=350
Sr
2+
=50
Fe
2+
, Zn
2+
=1
Fe
3+
=0.1
( At 10
-4
mol/L Ca
2+
)
2565A-10T
3.33 mol/L KCl
(250 g/L potas-
sium chloride)