LaMotte AG-104 Salt Water Aquarium - Manual (Page 11)

NITRATE NITROGEN
QUAN TITY CON TENTS CODE
2 x 60 mL *Mixed Acid Reagent *V-6278-H
5g *Nitrate Reducing Reagent *V-6279-C
1 Spoon, 0.1g, plastic 0699
2 Test Tubes, 2.5 & 5.0 mL, w/cap 0820
1 Bottle, water sample 0688
1 Nitrate-N Comparator, .25-10.0 ppm 3109
1 Dispenser Cap 0692
*WARNING: Reagents marked with a * are considered to be potential health hazards.
To view or print a Material Safety Data Sheet (MSDS) for these reagents see MSDS
CD or www.lamotte.com. To obtain a printed copy, contact LaMotte by email, phone
or fax.
NOTE 1: Nitrites can cause serious interference in this test and
should be determined and compensated for if present.
NOTE 2:
The best results are obtained when all solutions are kept
close to 23°C.
NOTE 3:
Place Dispenser Cap (0692) on *Mixed Acid Reagent
(V-6278). Save this cap for refill reagents.
Pro ce dure
1. Fill sample bottle (0688) with sample water.
2. Fill the test tube (0820) to the first line (2.5 mL) with the sample
from the sample bottle.
3. Add the *Mixed Acid Reagent (V-6278) to the second line (5.0 mL
total). Cap and mix. Wait two minutes.
4. Use the 0.1g spoon (0699) to add one level measure (avoid any
excess) of *Nitrate Reducing Reagent (V-6279). Cap and invert the
tube 50-60 times in one minute. Wait 10 minutes.
5. Mix before inserting tube into the Nitrate-N Comparator (3109).
Match sample color with a color standard. Record result as ppm
Nitrate Nitrogen (N). To obtain ppm Nitrate (NO3), multiply result
by 4.4.
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