In-situ Aqua TROLL 600, Operator'S Manual, Page: 14 / 74

14
Ammonium
Chloride
Nitrate
The table below lists concentrations of possible interfering ions that cause 10% error at various levels (in
ppm) of NH4+.
The table below lists concentrations of possible interfering ions that cause 10% error at various levels (in
ppm) of Cl-.
The table below lists concentrations of possible interfering ions that cause 10% error at various levels (in
ppm) of N03-.
Ion 100 ppm NH4+ 10 ppm NH4+ 1 ppm NH4+
Celsium (Cs
+
) 100 10 1
Potassium (K
+
) 270 27 2.7
Thallium (TI
+
) 3100 310 31
pH (H
+
) pH 1.6 pH 2.6 pH 3.6
Silver (Ag
+
) 270,000 27,000 2,700
Lithium (Li
+
) 35,000 3,500 350
Sodium (Na
+
) 11,100 1,100 110
Ion 100 ppm NH4+ 10 ppm NH4+ 1 ppm NH4+
Hydroxide (OH
-
) 3,840 384 38.4
Ammonia (NH
3
) 6 0.6 0.06
Thiosulfate (S
2
O
3
2-
) 3 0.3 0.03
Bromide (Br
-
) 0.68 0.068 6.8 x 10-3
Sulfide (S
2-
) 9 x 10-5 9 x 10-6 9 x 10-7
Iodide (I
-
) 1.8 x 10-4 1.8 x 10-5 1.8 x 10-6
Cyanide (CN
-
) 1.5 x 10-5 1.5 x 10-6 1.5 x 10-7
Ion 100 ppm NH4+ 10 ppm NH4+ 1 ppm NH4+
Perchlorate (CIO
4
-
) 7 x 10-2 7 x 10-3 7 x 10-4
Iodide (I
-
) 4 0.4 0.04
Chlorate (CIO
3
-
) 30 3 0.3
Cyanide (CN
-
) 20 2 0.2
Bromide (Br
-
) 400 40 4
Nitrite (NO
2
-
) 230 23 2
Hydrogen Sulfide (HS
-
) 230 23 2
1-970-498-1500 www.in-situ.com