LaMotte AST Series Professional Soil Test Outfits - Manual (Page 16)

NITRATE NITROGEN
Nitrogen, in the form of nitrate, is an important element in plant
growth. It is found in plant proteins, chlorophyll, nucleic acids, and
other plant structures, and adequate levels result in larger plants which
produce greater, more tender, yields. Since nitrogen is readily absorbed
by the plants, or leached from the soil, levels may change rapidly.
Cadmium in the *Nitrate Reducing Reagent reduces nitrate to nitrite
ions, which produce a red dyestuff through a diazotization reaction.
*Mixed Acid Reagent supplies the acid necessary for the reaction to
occur. The resulting color is matched to a color standard to determine
the nitrate nitrogen level.
QUANTITY CONTENTS CODE
500 mL *Mixed Acid Reagent *V-6278-L
2 x 10 g *Nitrate Reducing Reagent *V-6279-D
1 Test Tube, plastic, w/cap 0106
1 Spoon, 0.1 g, plastic 0699
1 Nitrate Nitrogen Octa-Slide Bar,
2.5-100ppm 3422
*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.
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