LaMotte OAKITE ALKALINE OKT 9205 User Manual
NI TRO GEN MOD ULE
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WARNING! This set contains chemicals
that may be harmful if misused. Read
cautions on individual containers
carefully. Not to be used by children
except under adult supervision
CODE 5930
FOR MODEL AM-31 • CODE 5928
QUANTITY CONTENTS CODE
120 mL *Universal Extracting Solution *5173PS-J
120 mL *Universal Extracting Solution *5173PT-J
30 mL *Nitrate Reagent #1 *5146-G
30 g *Nitrate Reagent #2 Powder *5147-G
2 Spoon, 0.5 g, plastic 0698
1 Pipet, 1.0 mL, plastic 0354
1 Rod, plastic, stirring 0519
1 Spot Plate, double, plastic 0159
1 Funnel, plastic 0459
3 Test Tubes, 1-8 mL, plastic, w/cap 0755
1 Pipet, plain, plastic, w/cap 0392
1 Filter Paper, 50 pk 0465-H
1 Test Tube, filtrate, plastic 0749
1 Nitrate-Nitrogen Color Chart 1315
*WARNING: Reagents marked with an * are considered to be potential
health hazards. To view or print a Material Safety Data Sheet (MSDS) for
these reagents go to www.lamotte.com. To obtain a printed copy, contact
LaMotte by e-mail, phone or fax.
For a discussion of the importance of nitrate-nitrogen, see of A Study of
Soil Science (1530) by Dr. Henry D. Foth.
PRO CE DURE
1. Fill a test tube (0755) to line 7 with *Universal Extracting Solution
(5173).
2. Use 0.5 g spoon (0698) to add four level measures of soil. Cap and
shake for one minute.
NOTE: When adding samples with high concentrations of
carbonates to *Universal Extracting Solution (5173), swirl tube to
mix for 30 seconds before capping to allow gases to escape.
3. Fold a piece of filter paper (0465) in half. Fold in half again. Gently
push corners together to form a cone. Place cone in funnel (0459).
4. Place funnel in clean filtrate tube (0749) and filter suspension
through the filter paper. The clear solution is the extract.
5. Use the 1 mL pipet (0354) to transfer 1 mL of soil extract to one of
the depressions on the spot plate (0159).
5. Use pipet (0392) to add 10 drops of *Nitrate Reagent #1 (5146).
6. Use the 0.5g spoon (0698) to add one measure of *Nitrate Reagent
#2 (5147). Stir thoroughly with plastic rod. Wait five minutes.
7. Match sample color to a color standard on Nitrate-Nitrogen Color
Chart (1315). Record as lb/acre nitrate-nitrogen.
LaMOTTE COM PANY
Help ing Peo ple Solve An a lyt i cal Chal lenges
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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