LaMotte MANGANESE TEST KIT LMN - Manual (Page 2)

NOTE: The following metals interfere above these levels:
Zinc 2 ppm
Nickel 4 ppm
Copper 5 ppm
The following metals produce a purple-brown reaction above these levels:
Iron 5 ppm
Cobalt 25 ppm
If metals above these levels are encountered, the Cyanide Inhibitor Package
(LaMotte Code 7104) must be used.
PRO CE DURE
1.
Fill a test tube (0893) to the lower line with sample water.
2. Use 1.0 mL pipet (0372) to add 1.0 mL of *Hardness Buffer Reagent
(4255).
3. Add 2 drops of *Metal Inhibitor (2785). Wait 1 minute.
4. Use 0.5 mL pipet (0369) to add 0.5 mL of *Manganese Indicator
Reagent (3956). Cap and mix. Wait 2 minutes.
5. Use 1.0 mL pipet (0354) to add 2.0 mL (two measures) of
*Chloroform Reagent (6203). Cap and mix vigorously for 30 seconds.
Allow to stand until the two layers separate.
6. Insert the test tube into the Low Range Manganese Comparator
(3594). Match the color of the lower liquid layer with the standards.
It may be necessary to raise the tube to compare against the upper set
of standards. Record as ppm Manganese.
7. Wash the tubes with soap and water after testing to prevent staining.
LaMOTTE COM PANY
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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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