Table of Contents
Advertisement
Nitrogen, Ammonia
5.
Add the contents of
one Ammonia Cyanurate
Reagent Powder Pillow
to each vial.
Zero
9.
Touch
.
Zero
The display will show:
0.00 mg/L NH
–N
3
Interferences
Interfering Substance
Calcium
Iron
Magnesium
Nitrite
Nitrate
Orthophos-phate
Nitrogen, Ammonia
Page 2 of 6
6.
Cap the vials tightly
and shake thoroughly to
dissolve the powder.
10.
Wipe the sample vial
and place it into the
adapter.
2500 mg/L as CaCO
3
1. Determine the amount of iron present in the sample by using one of the Iron, Total,
procedures.
2. Add the same iron concentration to the ammonia-free water in step 4. The interference will
then be successfully blanked out.
15,000 mg/L as CaCO
3
30 mg/L as NO
–N
2–
250 mg/L as NO
–N
3–
3–
250 mg/L as PO
–P
4
7.
Touch the timer icon.
Touch
.
OK
A 20-minute reaction
period will begin.
Read
11.
Touch
Read.
Results will appear in
mg/L NH
–N.
3
Interference Levels and Treatments
8.
Install the 16-mm
adapter.
Note: See Section 2.6 in the
Instrument Manual for
installation details.
Wipe the blank and place
it into the adapter.
NitrogenAmm_TNT_Low_SAL_Eng_Ody.fm
Advertisement
Table of Contents
