LaMotte NITRATE NITROGEN TEST KIT - Manual (Page 2)

PRO CE DURE
LOW RANGE (0-1.0 ppm Nitrate Nitrogen)
1. Fill the water sampling bottle (0688) with sample water.
2. Fill one test tube (0898) to the lower line (5 mL) with sample water.
3. Dilute to second line with *Mixed Acid Reagent (V-6278). Cap and mix.
4. Wait 2 minutes.
5. Use the 0.1 g spoon (0699) to add one level measure (avoid any excess)
of *Nitrate Reducing Reagent (V-6279).
6. The mixing procedure is extremely important. Cap tube. Invert tube
slowly and completely 30 times in 1 minute to insure complete mixing.
7. Wait 10 minutes.
8. Insert test tube into Axial Reader (2071). Fill two test tubes (0898) to
the 10 mL line with sample water. Place in Axial Reader. Match sample
color to a color standard. Record as ppm Nitrate-Nitrogen.
NOTE:
To convert to nitrate, multiply by 4.4. Record as ppm Nitrate.
HIGH RANGE (0-10.0 ppm Nitrate Nitrogen)
1. Use the 0.5 mL pipet (0353) to add 0.5 mL of the water sample to a test
tube (0898).
2. Add Distilled Water to the lower line (5 mL).
3. Dilute to second line with *Mixed Acid Reagent (V-6278). Cap and mix.
4. Wait 2 minutes.
5. Use the 0.1 g spoon (0699) to add one level measure (avoid any excess)
of *Nitrate Reducing Reagent (V-6279).
6. The mixing procedure is extremely important. Cap tube. Invert tube
slowly and completely 30 times in 1 minute to insure complete mixing.
7. Wait 10 minutes.
8. Insert test tube into Axial Reader (2071). Fill two test tubes (0898) to
the 10 mL line with sample water. Place in Axial Reader. Match sample
color to a color standard. Multiply the reading by 10. Record as ppm
Nitrate-Nitrogen.
NOTE:
To convert to nitrate, multiply by 4.4. Record as ppm Nitrate.
LaMOTTE COM PANY
Helping Peo ple Solve An a lyt i cal Challenges SM
PO Box 329 • Chestertown • Mary land • 21620 • USA
800-344-3100 • 410-778-3100 (Out side U.S.A.) • Fax 410-778-6394
Visit us on the web at www.lamotte.com
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